diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000000000000000000000000000000000000..4358a081084b5e62fdd1ee09063c31206004cde5
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,33 @@
+# EditorConfig is awesome: http://EditorConfig.org
+
+# top-most EditorConfig file
+root = true
+
+# Unix-style newlines with a newline ending every file
+[*]
+end_of_line = lf
+insert_final_newline = true
+
+# Matches multiple files with brace expansion notation
+# Set default charset
+[*.{js,py}]
+charset = utf-8
+
+# 4 space indentation
+[*.py]
+indent_style = space
+indent_size = 4
+
+# Tab indentation (no size specified)
+[Makefile]
+indent_style = tab
+
+# Indentation override for all JS under lib directory
+[lib/**.js]
+indent_style = space
+indent_size = 2
+
+# Matches the exact files either package.json or .travis.yml
+[{package.json,.travis.yml}]
+indent_style = space
+indent_size = 2
diff --git a/.eslintrc.json b/.eslintrc.json
new file mode 100644
index 0000000000000000000000000000000000000000..dbca14d5a6eed50887eed86b3c76fb547c20d886
--- /dev/null
+++ b/.eslintrc.json
@@ -0,0 +1,12 @@
+{
+    "extends": "airbnb",
+    "plugins": [
+        "jsx-a11y",
+        "import"
+    ],
+    "rules": {
+    },
+    "env": {
+        "browser": true
+    }
+}
diff --git a/.gitignore b/.gitignore
index 171d7787629356c3ebf8817d272bbf6961df57e6..4db2aa842187c3a007a4438a4de4a89579760a9a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,4 +16,5 @@ node_modules
 # misc
 .idea
 .vscode/
-static/
+/static
+.coverage
diff --git a/.pylintrc b/.pylintrc
new file mode 100644
index 0000000000000000000000000000000000000000..10269cdd01363cb3eb0e374351d3250d46e8b6b8
--- /dev/null
+++ b/.pylintrc
@@ -0,0 +1,407 @@
+[MASTER]
+
+# Specify a configuration file.
+#rcfile=
+
+# Python code to execute, usually for sys.path manipulation such as
+# pygtk.require().
+#init-hook=
+
+# Add files or directories to the blacklist. They should be base names, not
+# paths.
+ignore=CVS
+
+# Add files or directories matching the regex patterns to the blacklist. The
+# regex matches against base names, not paths.
+ignore-patterns=
+
+# Pickle collected data for later comparisons.
+persistent=yes
+
+# List of plugins (as comma separated values of python modules names) to load,
+# usually to register additional checkers.
+load-plugins=pylint_django
+
+# Use multiple processes to speed up Pylint.
+jobs=1
+
+# Allow loading of arbitrary C extensions. Extensions are imported into the
+# active Python interpreter and may run arbitrary code.
+unsafe-load-any-extension=no
+
+# A comma-separated list of package or module names from where C extensions may
+# be loaded. Extensions are loading into the active Python interpreter and may
+# run arbitrary code
+extension-pkg-whitelist=
+
+# Allow optimization of some AST trees. This will activate a peephole AST
+# optimizer, which will apply various small optimizations. For instance, it can
+# be used to obtain the result of joining multiple strings with the addition
+# operator. Joining a lot of strings can lead to a maximum recursion error in
+# Pylint and this flag can prevent that. It has one side effect, the resulting
+# AST will be different than the one from reality. This option is deprecated
+# and it will be removed in Pylint 2.0.
+optimize-ast=no
+
+
+[MESSAGES CONTROL]
+
+# Only show warnings with the listed confidence levels. Leave empty to show
+# all. Valid levels: HIGH, INFERENCE, INFERENCE_FAILURE, UNDEFINED
+confidence=
+
+# Enable the message, report, category or checker with the given id(s). You can
+# either give multiple identifier separated by comma (,) or put this option
+# multiple time (only on the command line, not in the configuration file where
+# it should appear only once). See also the "--disable" option for examples.
+#enable=
+
+# Disable the message, report, category or checker with the given id(s). You
+# can either give multiple identifiers separated by comma (,) or put this
+# option multiple times (only on the command line, not in the configuration
+# file where it should appear only once).You can also use "--disable=all" to
+# disable everything first and then reenable specific checks. For example, if
+# you want to run only the similarities checker, you can use "--disable=all
+# --enable=similarities". If you want to run only the classes checker, but have
+# no Warning level messages displayed, use"--disable=all --enable=classes
+# --disable=W"
+disable=print-statement,parameter-unpacking,unpacking-in-except,old-raise-syntax,backtick,import-star-module-level,apply-builtin,basestring-builtin,buffer-builtin,cmp-builtin,coerce-builtin,execfile-builtin,file-builtin,long-builtin,raw_input-builtin,reduce-builtin,standarderror-builtin,unicode-builtin,xrange-builtin,coerce-method,delslice-method,getslice-method,setslice-method,no-absolute-import,old-division,dict-iter-method,dict-view-method,next-method-called,metaclass-assignment,indexing-exception,raising-string,reload-builtin,oct-method,hex-method,nonzero-method,cmp-method,input-builtin,round-builtin,intern-builtin,unichr-builtin,map-builtin-not-iterating,zip-builtin-not-iterating,range-builtin-not-iterating,filter-builtin-not-iterating,using-cmp-argument,long-suffix,old-ne-operator,old-octal-literal,suppressed-message,useless-suppression,locally-disabled
+
+
+[REPORTS]
+
+# Set the output format. Available formats are text, parseable, colorized, msvs
+# (visual studio) and html. You can also give a reporter class, eg
+# mypackage.mymodule.MyReporterClass.
+output-format=text
+
+# Put messages in a separate file for each module / package specified on the
+# command line instead of printing them on stdout. Reports (if any) will be
+# written in a file name "pylint_global.[txt|html]". This option is deprecated
+# and it will be removed in Pylint 2.0.
+files-output=no
+
+# Tells whether to display a full report or only the messages
+reports=yes
+
+# Python expression which should return a note less than 10 (10 is the highest
+# note). You have access to the variables errors warning, statement which
+# respectively contain the number of errors / warnings messages and the total
+# number of statements analyzed. This is used by the global evaluation report
+# (RP0004).
+evaluation=10.0 - ((float(5 * error + warning + refactor + convention) / statement) * 10)
+
+# Template used to display messages. This is a python new-style format string
+# used to format the message information. See doc for all details
+#msg-template=
+
+
+[BASIC]
+
+# Good variable names which should always be accepted, separated by a comma
+good-names=i,j,k,ex,Run,_
+
+# Bad variable names which should always be refused, separated by a comma
+bad-names=foo,bar,baz,toto,tutu,tata
+
+# Colon-delimited sets of names that determine each other's naming style when
+# the name regexes allow several styles.
+name-group=
+
+# Include a hint for the correct naming format with invalid-name
+include-naming-hint=no
+
+# List of decorators that produce properties, such as abc.abstractproperty. Add
+# to this list to register other decorators that produce valid properties.
+property-classes=abc.abstractproperty
+
+# Regular expression matching correct module names
+module-rgx=(([a-z_][a-z0-9_]*)|([A-Z][a-zA-Z0-9]+))$
+
+# Naming hint for module names
+module-name-hint=(([a-z_][a-z0-9_]*)|([A-Z][a-zA-Z0-9]+))$
+
+# Regular expression matching correct constant names
+const-rgx=(([A-Z_][A-Z0-9_]*)|(__.*__))$
+
+# Naming hint for constant names
+const-name-hint=(([A-Z_][A-Z0-9_]*)|(__.*__))$
+
+# Regular expression matching correct class names
+class-rgx=[A-Z_][a-zA-Z0-9]+$
+
+# Naming hint for class names
+class-name-hint=[A-Z_][a-zA-Z0-9]+$
+
+# Regular expression matching correct function names
+function-rgx=[a-z_][a-z0-9_]{2,30}$
+
+# Naming hint for function names
+function-name-hint=[a-z_][a-z0-9_]{2,30}$
+
+# Regular expression matching correct method names
+method-rgx=[a-z_][a-z0-9_]{2,30}$
+
+# Naming hint for method names
+method-name-hint=[a-z_][a-z0-9_]{2,30}$
+
+# Regular expression matching correct attribute names
+attr-rgx=[a-z_][a-z0-9_]{2,30}$
+
+# Naming hint for attribute names
+attr-name-hint=[a-z_][a-z0-9_]{2,30}$
+
+# Regular expression matching correct argument names
+argument-rgx=[a-z_][a-z0-9_]{2,30}$
+
+# Naming hint for argument names
+argument-name-hint=[a-z_][a-z0-9_]{2,30}$
+
+# Regular expression matching correct variable names
+variable-rgx=[a-z_][a-z0-9_]{2,30}$
+
+# Naming hint for variable names
+variable-name-hint=[a-z_][a-z0-9_]{2,30}$
+
+# Regular expression matching correct class attribute names
+class-attribute-rgx=([A-Za-z_][A-Za-z0-9_]{2,30}|(__.*__))$
+
+# Naming hint for class attribute names
+class-attribute-name-hint=([A-Za-z_][A-Za-z0-9_]{2,30}|(__.*__))$
+
+# Regular expression matching correct inline iteration names
+inlinevar-rgx=[A-Za-z_][A-Za-z0-9_]*$
+
+# Naming hint for inline iteration names
+inlinevar-name-hint=[A-Za-z_][A-Za-z0-9_]*$
+
+# Regular expression which should only match function or class names that do
+# not require a docstring.
+no-docstring-rgx=^_
+
+# Minimum line length for functions/classes that require docstrings, shorter
+# ones are exempt.
+docstring-min-length=-1
+
+
+[ELIF]
+
+# Maximum number of nested blocks for function / method body
+max-nested-blocks=5
+
+
+[FORMAT]
+
+# Maximum number of characters on a single line.
+max-line-length=120
+
+# Regexp for a line that is allowed to be longer than the limit.
+ignore-long-lines=^\s*(# )?<?https?://\S+>?$
+
+# Allow the body of an if to be on the same line as the test if there is no
+# else.
+single-line-if-stmt=no
+
+# List of optional constructs for which whitespace checking is disabled. `dict-
+# separator` is used to allow tabulation in dicts, etc.: {1  : 1,\n222: 2}.
+# `trailing-comma` allows a space between comma and closing bracket: (a, ).
+# `empty-line` allows space-only lines.
+no-space-check=trailing-comma,dict-separator
+
+# Maximum number of lines in a module
+max-module-lines=1000
+
+# String used as indentation unit. This is usually "    " (4 spaces) or "\t" (1
+# tab).
+indent-string='    '
+
+# Number of spaces of indent required inside a hanging  or continued line.
+indent-after-paren=4
+
+# Expected format of line ending, e.g. empty (any line ending), LF or CRLF.
+expected-line-ending-format=
+
+
+[LOGGING]
+
+# Logging modules to check that the string format arguments are in logging
+# function parameter format
+logging-modules=logging
+
+
+[MISCELLANEOUS]
+
+# List of note tags to take in consideration, separated by a comma.
+notes=FIXME,XXX,TODO
+
+
+[SIMILARITIES]
+
+# Minimum lines number of a similarity.
+min-similarity-lines=4
+
+# Ignore comments when computing similarities.
+ignore-comments=yes
+
+# Ignore docstrings when computing similarities.
+ignore-docstrings=yes
+
+# Ignore imports when computing similarities.
+ignore-imports=no
+
+
+[SPELLING]
+
+# Spelling dictionary name. Available dictionaries: none. To make it working
+# install python-enchant package.
+spelling-dict=
+
+# List of comma separated words that should not be checked.
+spelling-ignore-words=
+
+# A path to a file that contains private dictionary; one word per line.
+spelling-private-dict-file=
+
+# Tells whether to store unknown words to indicated private dictionary in
+# --spelling-private-dict-file option instead of raising a message.
+spelling-store-unknown-words=no
+
+
+[TYPECHECK]
+
+# Tells whether missing members accessed in mixin class should be ignored. A
+# mixin class is detected if its name ends with "mixin" (case insensitive).
+ignore-mixin-members=yes
+
+# List of module names for which member attributes should not be checked
+# (useful for modules/projects where namespaces are manipulated during runtime
+# and thus existing member attributes cannot be deduced by static analysis. It
+# supports qualified module names, as well as Unix pattern matching.
+ignored-modules=
+
+# List of class names for which member attributes should not be checked (useful
+# for classes with dynamically set attributes). This supports the use of
+# qualified names.
+ignored-classes=optparse.Values,thread._local,_thread._local
+
+# List of members which are set dynamically and missed by pylint inference
+# system, and so shouldn't trigger E1101 when accessed. Python regular
+# expressions are accepted.
+generated-members=
+
+# List of decorators that produce context managers, such as
+# contextlib.contextmanager. Add to this list to register other decorators that
+# produce valid context managers.
+contextmanager-decorators=contextlib.contextmanager
+
+
+[VARIABLES]
+
+# Tells whether we should check for unused import in __init__ files.
+init-import=no
+
+# A regular expression matching the name of dummy variables (i.e. expectedly
+# not used).
+dummy-variables-rgx=(_+[a-zA-Z0-9]*?$)|dummy
+
+# List of additional names supposed to be defined in builtins. Remember that
+# you should avoid to define new builtins when possible.
+additional-builtins=
+
+# List of strings which can identify a callback function by name. A callback
+# name must start or end with one of those strings.
+callbacks=cb_,_cb
+
+# List of qualified module names which can have objects that can redefine
+# builtins.
+redefining-builtins-modules=six.moves,future.builtins
+
+
+[CLASSES]
+
+# List of method names used to declare (i.e. assign) instance attributes.
+defining-attr-methods=__init__,__new__,setUp
+
+# List of valid names for the first argument in a class method.
+valid-classmethod-first-arg=cls
+
+# List of valid names for the first argument in a metaclass class method.
+valid-metaclass-classmethod-first-arg=mcs
+
+# List of member names, which should be excluded from the protected access
+# warning.
+exclude-protected=_asdict,_fields,_replace,_source,_make
+
+
+[DESIGN]
+
+# Maximum number of arguments for function / method
+max-args=5
+
+# Argument names that match this expression will be ignored. Default to name
+# with leading underscore
+ignored-argument-names=_.*
+
+# Maximum number of locals for function / method body
+max-locals=15
+
+# Maximum number of return / yield for function / method body
+max-returns=6
+
+# Maximum number of branch for function / method body
+max-branches=12
+
+# Maximum number of statements in function / method body
+max-statements=50
+
+# Maximum number of parents for a class (see R0901).
+max-parents=7
+
+# Maximum number of attributes for a class (see R0902).
+max-attributes=7
+
+# Minimum number of public methods for a class (see R0903).
+min-public-methods=2
+
+# Maximum number of public methods for a class (see R0904).
+max-public-methods=20
+
+# Maximum number of boolean expressions in a if statement
+max-bool-expr=5
+
+
+[IMPORTS]
+
+# Deprecated modules which should not be used, separated by a comma
+deprecated-modules=optparse
+
+# Create a graph of every (i.e. internal and external) dependencies in the
+# given file (report RP0402 must not be disabled)
+import-graph=
+
+# Create a graph of external dependencies in the given file (report RP0402 must
+# not be disabled)
+ext-import-graph=
+
+# Create a graph of internal dependencies in the given file (report RP0402 must
+# not be disabled)
+int-import-graph=
+
+# Force import order to recognize a module as part of the standard
+# compatibility libraries.
+known-standard-library=
+
+# Force import order to recognize a module as part of a third party library.
+known-third-party=enchant
+
+# Analyse import fallback blocks. This can be used to support both Python 2 and
+# 3 compatible code, which means that the block might have code that exists
+# only in one or another interpreter, leading to false positives when analysed.
+analyse-fallback-blocks=no
+
+
+[EXCEPTIONS]
+
+# Exceptions that will emit a warning when being caught. Defaults to
+# "Exception"
+overgeneral-exceptions=Exception
diff --git a/blocnote/apps/budgetSimulator/__init__.py b/blocnote/apps/budgetSimulator/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/blocnote/apps/budgetSimulator/admin.py b/blocnote/apps/budgetSimulator/admin.py
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/blocnote/apps/budgetSimulator/apps.py b/blocnote/apps/budgetSimulator/apps.py
new file mode 100644
index 0000000000000000000000000000000000000000..d13b03ba4873b5d79a3c1977b1e9c7ca039224ad
--- /dev/null
+++ b/blocnote/apps/budgetSimulator/apps.py
@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class BudgetsimulatorConfig(AppConfig):
+    name = 'budgetSimulator'
diff --git a/blocnote/apps/budgetSimulator/fixtures/bills_overview_testdata.json b/blocnote/apps/budgetSimulator/fixtures/bills_overview_testdata.json
new file mode 100644
index 0000000000000000000000000000000000000000..eb81c21360edd7b6c49847bafa131509a2cffb98
--- /dev/null
+++ b/blocnote/apps/budgetSimulator/fixtures/bills_overview_testdata.json
@@ -0,0 +1,1346 @@
+[
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 1,
+        "fields": {
+            "building_id": 100,
+            "year": "2014",
+            "electricity": "10000.00",
+            "electricity_is_user_input": true,
+            "water": null,
+            "water_is_user_input": false,
+            "oil": null,
+            "oil_is_user_input": false,
+            "gas": null,
+            "gas_is_user_input": false
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2,
+        "fields": {
+            "building_id": 101,
+            "year": "2014",
+            "electricity": "10000.00",
+            "electricity_is_user_input": true,
+            "water": null,
+            "water_is_user_input": false,
+            "oil": null,
+            "oil_is_user_input": false,
+            "gas": null,
+            "gas_is_user_input": false
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 3,
+        "fields": {
+            "building_id": 101,
+            "year": "2015",
+            "electricity": "12000.00",
+            "electricity_is_user_input": true,
+            "water": null,
+            "water_is_user_input": false,
+            "oil": null,
+            "oil_is_user_input": false,
+            "gas": null,
+            "gas_is_user_input": false
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 4,
+        "fields": {
+            "building_id": 101,
+            "year": "2016",
+            "electricity": "15000.00",
+            "electricity_is_user_input": true,
+            "water": null,
+            "water_is_user_input": false,
+            "oil": null,
+            "oil_is_user_input": false,
+            "gas": null,
+            "gas_is_user_input": false
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 5,
+        "fields": {
+            "building_id": 102,
+            "year": "2014",
+            "electricity": "10000.00",
+            "electricity_is_user_input": true,
+            "water": null,
+            "water_is_user_input": false,
+            "oil": null,
+            "oil_is_user_input": false,
+            "gas": 5000,
+            "gas_is_user_input": true
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 6,
+        "fields": {
+            "building_id": 103,
+            "year": "2014",
+            "electricity": "10000.00",
+            "electricity_is_user_input": true,
+            "water": 17000,
+            "water_is_user_input": true,
+            "oil": null,
+            "oil_is_user_input": false,
+            "gas": 5000,
+            "gas_is_user_input": true
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 7,
+        "fields": {
+            "building_id": 104,
+            "year": "2014",
+            "electricity": "10000.00",
+            "electricity_is_user_input": true,
+            "water": null,
+            "water_is_user_input": false,
+            "oil": null,
+            "oil_is_user_input": false,
+            "gas": null,
+            "gas_is_user_input": false
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 8,
+        "fields": {
+            "building_id": 104,
+            "year": "2015",
+            "electricity": "12000.00",
+            "electricity_is_user_input": true,
+            "water": null,
+            "water_is_user_input": false,
+            "oil": null,
+            "oil_is_user_input": false,
+            "gas": 5000,
+            "gas_is_user_input": true
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 9,
+        "fields": {
+            "building_id": 104,
+            "year": "2016",
+            "electricity": "14000.00",
+            "electricity_is_user_input": true,
+            "water": 17000,
+            "water_is_user_input": true,
+            "oil": null,
+            "oil_is_user_input": false,
+            "gas": 7000,
+            "gas_is_user_input": true
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2410,
+        "fields": {
+            "building_id": 289,
+            "year": "2014",
+            "electricity": "82473.13",
+            "electricity_is_user_input": false,
+            "water": null,
+            "water_is_user_input": true,
+            "oil": null,
+            "oil_is_user_input": true,
+            "gas": "6686.16",
+            "gas_is_user_input": false
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2411,
+        "fields": {
+            "building_id": 289,
+            "year": "2015",
+            "electricity": "83108.87",
+            "electricity_is_user_input": false,
+            "water": null,
+            "water_is_user_input": true,
+            "oil": "18000.00",
+            "oil_is_user_input": true,
+            "gas": "6748.39",
+            "gas_is_user_input": false
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2412,
+        "fields": {
+            "building_id": 289,
+            "year": "2016",
+            "electricity": "83839.67",
+            "electricity_is_user_input": false,
+            "water": "2000.00",
+            "water_is_user_input": true,
+            "oil": "20000.00",
+            "oil_is_user_input": true,
+            "gas": "6797.83",
+            "gas_is_user_input": false
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2413,
+        "fields": {
+            "building_id": 289,
+            "year": "2017",
+            "electricity": "85516.56",
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+            "gas": null,
+            "gas_is_user_input": true
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2511,
+        "fields": {
+            "building_id": 2003,
+            "year": "2015",
+            "electricity": "83108.87",
+            "electricity_is_user_input": false,
+            "water": null,
+            "water_is_user_input": true,
+            "oil": null,
+            "oil_is_user_input": true,
+            "gas": null,
+            "gas_is_user_input": true
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2512,
+        "fields": {
+            "building_id": 2003,
+            "year": "2016",
+            "electricity": "83839.67",
+            "electricity_is_user_input": false,
+            "water": "20000.00",
+            "water_is_user_input": true,
+            "oil": "40000.00",
+            "oil_is_user_input": true,
+            "gas": "75000.00",
+            "gas_is_user_input": true
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2513,
+        "fields": {
+            "building_id": 2003,
+            "year": "2017",
+            "electricity": "85516.56",
+            "electricity_is_user_input": false,
+            "water": null,
+            "water_is_user_input": true,
+            "oil": null,
+            "oil_is_user_input": true,
+            "gas": null,
+            "gas_is_user_input": true
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2514,
+        "fields": {
+            "building_id": 2003,
+            "year": "2018",
+            "electricity": "87650.14",
+            "electricity_is_user_input": false,
+            "water": null,
+            "water_is_user_input": true,
+            "oil": null,
+            "oil_is_user_input": true,
+            "gas": null,
+            "gas_is_user_input": true
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2515,
+        "fields": {
+            "building_id": 2003,
+            "year": "2019",
+            "electricity": "89797.71",
+            "electricity_is_user_input": false,
+            "water": null,
+            "water_is_user_input": true,
+            "oil": null,
+            "oil_is_user_input": true,
+            "gas": null,
+            "gas_is_user_input": true
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2516,
+        "fields": {
+            "building_id": 2003,
+            "year": "2020",
+            "electricity": "91900.16",
+            "electricity_is_user_input": false,
+            "water": null,
+            "water_is_user_input": true,
+            "oil": null,
+            "oil_is_user_input": true,
+            "gas": null,
+            "gas_is_user_input": true
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2517,
+        "fields": {
+            "building_id": 2003,
+            "year": "2021",
+            "electricity": "93851.39",
+            "electricity_is_user_input": false,
+            "water": null,
+            "water_is_user_input": true,
+            "oil": null,
+            "oil_is_user_input": true,
+            "gas": null,
+            "gas_is_user_input": true
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2518,
+        "fields": {
+            "building_id": 2003,
+            "year": "2022",
+            "electricity": "95627.40",
+            "electricity_is_user_input": false,
+            "water": null,
+            "water_is_user_input": true,
+            "oil": null,
+            "oil_is_user_input": true,
+            "gas": null,
+            "gas_is_user_input": true
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2519,
+        "fields": {
+            "building_id": 2003,
+            "year": "2023",
+            "electricity": "97371.86",
+            "electricity_is_user_input": false,
+            "water": null,
+            "water_is_user_input": true,
+            "oil": null,
+            "oil_is_user_input": true,
+            "gas": null,
+            "gas_is_user_input": true
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2520,
+        "fields": {
+            "building_id": 2003,
+            "year": "2024",
+            "electricity": "99155.59",
+            "electricity_is_user_input": false,
+            "water": null,
+            "water_is_user_input": true,
+            "oil": null,
+            "oil_is_user_input": true,
+            "gas": null,
+            "gas_is_user_input": true
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2521,
+        "fields": {
+            "building_id": 2003,
+            "year": "2025",
+            "electricity": "100999.33",
+            "electricity_is_user_input": false,
+            "water": null,
+            "water_is_user_input": true,
+            "oil": null,
+            "oil_is_user_input": true,
+            "gas": null,
+            "gas_is_user_input": true
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2522,
+        "fields": {
+            "building_id": 2003,
+            "year": "2026",
+            "electricity": "102987.98",
+            "electricity_is_user_input": false,
+            "water": null,
+            "water_is_user_input": true,
+            "oil": null,
+            "oil_is_user_input": true,
+            "gas": null,
+            "gas_is_user_input": true
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2523,
+        "fields": {
+            "building_id": 2003,
+            "year": "2027",
+            "electricity": "105128.49",
+            "electricity_is_user_input": false,
+            "water": null,
+            "water_is_user_input": true,
+            "oil": null,
+            "oil_is_user_input": true,
+            "gas": null,
+            "gas_is_user_input": true
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2524,
+        "fields": {
+            "building_id": 2003,
+            "year": "2028",
+            "electricity": "107321.71",
+            "electricity_is_user_input": false,
+            "water": null,
+            "water_is_user_input": true,
+            "oil": null,
+            "oil_is_user_input": true,
+            "gas": null,
+            "gas_is_user_input": true
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2525,
+        "fields": {
+            "building_id": 2003,
+            "year": "2029",
+            "electricity": "109516.91",
+            "electricity_is_user_input": false,
+            "water": null,
+            "water_is_user_input": true,
+            "oil": null,
+            "oil_is_user_input": true,
+            "gas": null,
+            "gas_is_user_input": true
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2526,
+        "fields": {
+            "building_id": 2003,
+            "year": "2030",
+            "electricity": "111712.78",
+            "electricity_is_user_input": false,
+            "water": null,
+            "water_is_user_input": true,
+            "oil": null,
+            "oil_is_user_input": true,
+            "gas": null,
+            "gas_is_user_input": true
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2527,
+        "fields": {
+            "building_id": 2003,
+            "year": "2031",
+            "electricity": "113915.17",
+            "electricity_is_user_input": false,
+            "water": null,
+            "water_is_user_input": true,
+            "oil": null,
+            "oil_is_user_input": true,
+            "gas": null,
+            "gas_is_user_input": true
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2528,
+        "fields": {
+            "building_id": 2003,
+            "year": "2032",
+            "electricity": "116143.70",
+            "electricity_is_user_input": false,
+            "water": null,
+            "water_is_user_input": true,
+            "oil": null,
+            "oil_is_user_input": true,
+            "gas": null,
+            "gas_is_user_input": true
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2529,
+        "fields": {
+            "building_id": 2003,
+            "year": "2033",
+            "electricity": "118423.26",
+            "electricity_is_user_input": false,
+            "water": null,
+            "water_is_user_input": true,
+            "oil": null,
+            "oil_is_user_input": true,
+            "gas": null,
+            "gas_is_user_input": true
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2530,
+        "fields": {
+            "building_id": 2003,
+            "year": "2034",
+            "electricity": "120763.97",
+            "electricity_is_user_input": false,
+            "water": null,
+            "water_is_user_input": true,
+            "oil": null,
+            "oil_is_user_input": true,
+            "gas": null,
+            "gas_is_user_input": true
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2531,
+        "fields": {
+            "building_id": 2003,
+            "year": "2035",
+            "electricity": "123168.44",
+            "electricity_is_user_input": false,
+            "water": null,
+            "water_is_user_input": true,
+            "oil": null,
+            "oil_is_user_input": true,
+            "gas": null,
+            "gas_is_user_input": true
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2532,
+        "fields": {
+            "building_id": 2003,
+            "year": "2036",
+            "electricity": "125636.99",
+            "electricity_is_user_input": false,
+            "water": null,
+            "water_is_user_input": true,
+            "oil": null,
+            "oil_is_user_input": true,
+            "gas": null,
+            "gas_is_user_input": true
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2533,
+        "fields": {
+            "building_id": 2003,
+            "year": "2037",
+            "electricity": "128159.45",
+            "electricity_is_user_input": false,
+            "water": null,
+            "water_is_user_input": true,
+            "oil": null,
+            "oil_is_user_input": true,
+            "gas": null,
+            "gas_is_user_input": true
+        }
+    },
+    {
+        "model": "financialInputs.billsoverview",
+        "pk": 2534,
+        "fields": {
+            "building_id": 2003,
+            "year": "2038",
+            "electricity": "130723.50",
+            "electricity_is_user_input": false,
+            "water": null,
+            "water_is_user_input": true,
+            "oil": null,
+            "oil_is_user_input": true,
+            "gas": null,
+            "gas_is_user_input": true
+        }
+    }
+]
diff --git a/blocnote/apps/budgetSimulator/fixtures/bills_testdata.json b/blocnote/apps/budgetSimulator/fixtures/bills_testdata.json
new file mode 100644
index 0000000000000000000000000000000000000000..15de0257f3d29c58bd616e99522e6b8d456c93da
--- /dev/null
+++ b/blocnote/apps/budgetSimulator/fixtures/bills_testdata.json
@@ -0,0 +1,914 @@
+[
+    {
+        "model": "financialInputs.bills",
+        "pk": 1,
+        "fields": {
+            "building_id": 100,
+            "date_from": "2015-01-01",
+            "date_to": "2015-12-31",
+            "utility_type": "electricity",
+            "usage": "100.00",
+            "charge": "5000.00"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 2,
+        "fields": {
+            "building_id": 102,
+            "date_from": "2015-01-01",
+            "date_to": "2015-12-31",
+            "utility_type": "electricity",
+            "usage": "100.00",
+            "charge": "5000.00"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 3,
+        "fields": {
+            "building_id": 102,
+            "date_from": "2014-01-01",
+            "date_to": "2014-12-31",
+            "utility_type": "gas",
+            "usage": "200.00",
+            "charge": "7000.00"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 4,
+        "fields": {
+            "building_id": 103,
+            "date_from": "2014-01-01",
+            "date_to": "2014-12-31",
+            "utility_type": "electricity",
+            "usage": "100.00",
+            "charge": "5000.00"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 5,
+        "fields": {
+            "building_id": 103,
+            "date_from": "2015-01-01",
+            "date_to": "2015-12-31",
+            "utility_type": "electricity",
+            "usage": "200.00",
+            "charge": "10000.00"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 6,
+        "fields": {
+            "building_id": 103,
+            "date_from": "2016-01-01",
+            "date_to": "2016-12-31",
+            "utility_type": "electricity",
+            "usage": "300.00",
+            "charge": "13000.00"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 7,
+        "fields": {
+            "building_id": 103,
+            "date_from": "2015-01-01",
+            "date_to": "2015-12-31",
+            "utility_type": "gas",
+            "usage": "200.00",
+            "charge": "7000.00"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 8,
+        "fields": {
+            "building_id": 103,
+            "date_from": "2016-01-01",
+            "date_to": "2016-12-31",
+            "utility_type": "gas",
+            "usage": "400.00",
+            "charge": "9500.00"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 9,
+        "fields": {
+            "building_id": 103,
+            "date_from": "2015-01-01",
+            "date_to": "2015-12-31",
+            "utility_type": "oil",
+            "usage": "100.00",
+            "charge": "5000.00"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 10,
+        "fields": {
+            "building_id": 103,
+            "date_from": "2016-01-01",
+            "date_to": "2016-12-31",
+            "utility_type": "oil",
+            "usage": "250.00",
+            "charge": "6000.00"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 11,
+        "fields": {
+            "building_id": 103,
+            "date_from": "2016-01-01",
+            "date_to": "2016-12-31",
+            "utility_type": "water",
+            "usage": "200.00",
+            "charge": "2000.00"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 532,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2017-02-22",
+            "date_to": "2017-03-23",
+            "utility_type": "electricity",
+            "usage": "25800.00",
+            "charge": "4509.82"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 533,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2016-12-21",
+            "date_to": "2017-02-22",
+            "utility_type": "electricity",
+            "usage": "61800.00",
+            "charge": "10273.47"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 534,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2016-11-18",
+            "date_to": "2016-12-21",
+            "utility_type": "electricity",
+            "usage": "33600.00",
+            "charge": "5594.74"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 535,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2016-10-20",
+            "date_to": "2016-11-18",
+            "utility_type": "electricity",
+            "usage": "31800.00",
+            "charge": "5780.51"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 536,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2016-09-20",
+            "date_to": "2016-10-20",
+            "utility_type": "electricity",
+            "usage": "37800.00",
+            "charge": "6412.98"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 537,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2016-08-19",
+            "date_to": "2016-09-20",
+            "utility_type": "electricity",
+            "usage": "52200.00",
+            "charge": "8708.14"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 538,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2016-07-21",
+            "date_to": "2016-08-19",
+            "utility_type": "electricity",
+            "usage": "52200.00",
+            "charge": "8845.57"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 539,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2016-06-21",
+            "date_to": "2016-07-21",
+            "utility_type": "electricity",
+            "usage": "49800.00",
+            "charge": "8599.52"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 540,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2016-05-20",
+            "date_to": "2016-06-21",
+            "utility_type": "electricity",
+            "usage": "48600.00",
+            "charge": "8688.43"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 541,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2016-04-21",
+            "date_to": "2016-05-20",
+            "utility_type": "electricity",
+            "usage": "34800.00",
+            "charge": "5446.82"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 542,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2016-03-23",
+            "date_to": "2016-04-21",
+            "utility_type": "electricity",
+            "usage": "31800.00",
+            "charge": "5424.90"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 543,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2016-02-23",
+            "date_to": "2016-03-23",
+            "utility_type": "electricity",
+            "usage": "31200.00",
+            "charge": "5404.15"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 544,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2016-01-22",
+            "date_to": "2016-02-23",
+            "utility_type": "electricity",
+            "usage": "33600.00",
+            "charge": "5376.68"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 545,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2015-12-22",
+            "date_to": "2016-01-22",
+            "utility_type": "electricity",
+            "usage": "36600.00",
+            "charge": "6431.27"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 546,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2015-11-19",
+            "date_to": "2015-12-22",
+            "utility_type": "electricity",
+            "usage": "36000.00",
+            "charge": "5829.68"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 547,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2015-10-21",
+            "date_to": "2015-11-19",
+            "utility_type": "electricity",
+            "usage": "36000.00",
+            "charge": "6245.07"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 548,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2015-09-21",
+            "date_to": "2015-10-21",
+            "utility_type": "electricity",
+            "usage": "36600.00",
+            "charge": "6303.98"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 549,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2015-08-20",
+            "date_to": "2015-09-21",
+            "utility_type": "electricity",
+            "usage": "54000.00",
+            "charge": "9611.84"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 550,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2015-07-22",
+            "date_to": "2015-08-20",
+            "utility_type": "electricity",
+            "usage": "51000.00",
+            "charge": "9320.90"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 551,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2015-06-22",
+            "date_to": "2015-07-22",
+            "utility_type": "electricity",
+            "usage": "52800.00",
+            "charge": "10168.65"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 552,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2015-05-21",
+            "date_to": "2015-06-22",
+            "utility_type": "electricity",
+            "usage": "49200.00",
+            "charge": "9277.00"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 553,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2015-04-22",
+            "date_to": "2015-05-21",
+            "utility_type": "electricity",
+            "usage": "40200.00",
+            "charge": "7404.47"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 554,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2015-03-24",
+            "date_to": "2015-04-22",
+            "utility_type": "electricity",
+            "usage": "36000.00",
+            "charge": "5751.96"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 555,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2017-02-15",
+            "date_to": "2017-03-16",
+            "utility_type": "gas",
+            "usage": "929.00",
+            "charge": "1059.41"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 556,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2017-01-17",
+            "date_to": "2017-02-15",
+            "utility_type": "gas",
+            "usage": "1083.00",
+            "charge": "1238.53"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 557,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2016-12-15",
+            "date_to": "2017-01-17",
+            "utility_type": "gas",
+            "usage": "1076.00",
+            "charge": "1092.90"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 558,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2016-11-15",
+            "date_to": "2016-12-15",
+            "utility_type": "gas",
+            "usage": "678.00",
+            "charge": "602.64"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 559,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2016-10-17",
+            "date_to": "2016-11-15",
+            "utility_type": "gas",
+            "usage": "552.00",
+            "charge": "441.53"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 560,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2016-09-16",
+            "date_to": "2016-10-17",
+            "utility_type": "gas",
+            "usage": "232.00",
+            "charge": "179.35"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 561,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2016-08-17",
+            "date_to": "2016-09-16",
+            "utility_type": "gas",
+            "usage": "103.00",
+            "charge": "86.60"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 562,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2016-07-19",
+            "date_to": "2016-08-17",
+            "utility_type": "gas",
+            "usage": "113.00",
+            "charge": "101.15"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 563,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2016-06-17",
+            "date_to": "2016-07-19",
+            "utility_type": "gas",
+            "usage": "224.00",
+            "charge": "204.29"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 564,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2016-05-20",
+            "date_to": "2016-06-17",
+            "utility_type": "gas",
+            "usage": "244.00",
+            "charge": "220.37"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 565,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2016-04-18",
+            "date_to": "2016-05-20",
+            "utility_type": "gas",
+            "usage": "674.00",
+            "charge": "552.46"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 566,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2016-03-16",
+            "date_to": "2016-04-18",
+            "utility_type": "gas",
+            "usage": "986.00",
+            "charge": "804.96"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 567,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2016-02-16",
+            "date_to": "2016-03-16",
+            "utility_type": "gas",
+            "usage": "1017.00",
+            "charge": "898.21"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 568,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2016-01-15",
+            "date_to": "2016-02-16",
+            "utility_type": "gas",
+            "usage": "1422.00",
+            "charge": "1243.22"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 569,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2015-12-15",
+            "date_to": "2016-01-15",
+            "utility_type": "gas",
+            "usage": "1096.00",
+            "charge": "1042.92"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 570,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2015-11-13",
+            "date_to": "2015-12-15",
+            "utility_type": "gas",
+            "usage": "934.00",
+            "charge": "865.51"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 571,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2015-10-15",
+            "date_to": "2015-11-13",
+            "utility_type": "gas",
+            "usage": "563.00",
+            "charge": "487.05"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 572,
+        "fields": {
+            "building_id": 289,
+            "date_from": "2015-09-16",
+            "date_to": "2015-10-15",
+            "utility_type": "gas",
+            "usage": "329.00",
+            "charge": "275.92"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 701,
+        "fields": {
+            "building_id": 2003,
+            "date_from": "2017-02-22",
+            "date_to": "2017-03-23",
+            "utility_type": "electricity",
+            "usage": "25800.00",
+            "charge": "4509.82"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 702,
+        "fields": {
+            "building_id": 2003,
+            "date_from": "2016-12-21",
+            "date_to": "2017-02-22",
+            "utility_type": "electricity",
+            "usage": "61800.00",
+            "charge": "10273.47"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 703,
+        "fields": {
+            "building_id": 2003,
+            "date_from": "2016-11-18",
+            "date_to": "2016-12-21",
+            "utility_type": "electricity",
+            "usage": "33600.00",
+            "charge": "5594.74"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 704,
+        "fields": {
+            "building_id": 2003,
+            "date_from": "2016-10-20",
+            "date_to": "2016-11-18",
+            "utility_type": "electricity",
+            "usage": "31800.00",
+            "charge": "5780.51"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 705,
+        "fields": {
+            "building_id": 2003,
+            "date_from": "2016-09-20",
+            "date_to": "2016-10-20",
+            "utility_type": "electricity",
+            "usage": "37800.00",
+            "charge": "6412.98"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 706,
+        "fields": {
+            "building_id": 2003,
+            "date_from": "2016-08-19",
+            "date_to": "2016-09-20",
+            "utility_type": "electricity",
+            "usage": "52200.00",
+            "charge": "8708.14"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 707,
+        "fields": {
+            "building_id": 2003,
+            "date_from": "2016-07-21",
+            "date_to": "2016-08-19",
+            "utility_type": "electricity",
+            "usage": "52200.00",
+            "charge": "8845.57"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 708,
+        "fields": {
+            "building_id": 2003,
+            "date_from": "2016-06-21",
+            "date_to": "2016-07-21",
+            "utility_type": "electricity",
+            "usage": "49800.00",
+            "charge": "8599.52"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 709,
+        "fields": {
+            "building_id": 2003,
+            "date_from": "2016-05-20",
+            "date_to": "2016-06-21",
+            "utility_type": "electricity",
+            "usage": "48600.00",
+            "charge": "8688.43"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 710,
+        "fields": {
+            "building_id": 2003,
+            "date_from": "2016-04-21",
+            "date_to": "2016-05-20",
+            "utility_type": "electricity",
+            "usage": "34800.00",
+            "charge": "5446.82"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 711,
+        "fields": {
+            "building_id": 2003,
+            "date_from": "2016-03-23",
+            "date_to": "2016-04-21",
+            "utility_type": "electricity",
+            "usage": "31800.00",
+            "charge": "5424.90"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 712,
+        "fields": {
+            "building_id": 2003,
+            "date_from": "2016-02-23",
+            "date_to": "2016-03-23",
+            "utility_type": "electricity",
+            "usage": "31200.00",
+            "charge": "5404.15"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 713,
+        "fields": {
+            "building_id": 2003,
+            "date_from": "2016-01-22",
+            "date_to": "2016-02-23",
+            "utility_type": "electricity",
+            "usage": "33600.00",
+            "charge": "5376.68"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 714,
+        "fields": {
+            "building_id": 2003,
+            "date_from": "2015-12-22",
+            "date_to": "2016-01-22",
+            "utility_type": "electricity",
+            "usage": "36600.00",
+            "charge": "6431.27"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 715,
+        "fields": {
+            "building_id": 2003,
+            "date_from": "2015-11-19",
+            "date_to": "2015-12-22",
+            "utility_type": "electricity",
+            "usage": "36000.00",
+            "charge": "5829.68"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 716,
+        "fields": {
+            "building_id": 2003,
+            "date_from": "2015-10-21",
+            "date_to": "2015-11-19",
+            "utility_type": "electricity",
+            "usage": "36000.00",
+            "charge": "6245.07"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 717,
+        "fields": {
+            "building_id": 2003,
+            "date_from": "2015-09-21",
+            "date_to": "2015-10-21",
+            "utility_type": "electricity",
+            "usage": "36600.00",
+            "charge": "6303.98"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 718,
+        "fields": {
+            "building_id": 2003,
+            "date_from": "2015-08-20",
+            "date_to": "2015-09-21",
+            "utility_type": "electricity",
+            "usage": "54000.00",
+            "charge": "9611.84"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 719,
+        "fields": {
+            "building_id": 2003,
+            "date_from": "2015-07-22",
+            "date_to": "2015-08-20",
+            "utility_type": "electricity",
+            "usage": "51000.00",
+            "charge": "9320.90"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 720,
+        "fields": {
+            "building_id": 2003,
+            "date_from": "2015-06-22",
+            "date_to": "2015-07-22",
+            "utility_type": "electricity",
+            "usage": "52800.00",
+            "charge": "10168.65"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 721,
+        "fields": {
+            "building_id": 2003,
+            "date_from": "2015-05-21",
+            "date_to": "2015-06-22",
+            "utility_type": "electricity",
+            "usage": "49200.00",
+            "charge": "9277.00"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 722,
+        "fields": {
+            "building_id": 2003,
+            "date_from": "2015-04-22",
+            "date_to": "2015-05-21",
+            "utility_type": "electricity",
+            "usage": "40200.00",
+            "charge": "7404.47"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 723,
+        "fields": {
+            "building_id": 2003,
+            "date_from": "2015-03-24",
+            "date_to": "2015-04-22",
+            "utility_type": "electricity",
+            "usage": "36000.00",
+            "charge": "5751.96"
+        }
+    },
+    {
+        "model": "financialInputs.bills",
+        "pk": 724,
+        "fields": {
+            "building_id": 2004,
+            "date_from": "2015-03-24",
+            "date_to": "2015-04-22",
+            "utility_type": "electricity",
+            "usage": "36000.00",
+            "charge": "5751.96"
+        }
+    }
+]
diff --git a/blocnote/apps/budgetSimulator/fixtures/cash_balance_testdata.json b/blocnote/apps/budgetSimulator/fixtures/cash_balance_testdata.json
new file mode 100644
index 0000000000000000000000000000000000000000..d13a860d824e9f1a7388a5cd38b188db208078fa
--- /dev/null
+++ b/blocnote/apps/budgetSimulator/fixtures/cash_balance_testdata.json
@@ -0,0 +1,72 @@
+[
+    {
+        "model": "financialInputs.cashbalance",
+        "pk": 1,
+        "fields": {
+            "building_id": 100,
+            "statement_date": "2016-12-1",
+            "is_from_balance_sheet": true,
+            "balance_amount": "20000.00"
+        }
+    },
+    {
+        "model": "financialInputs.cashbalance",
+        "pk": 2,
+        "fields": {
+            "building_id": 101,
+            "statement_date": "2016-12-1",
+            "is_from_balance_sheet": true,
+            "balance_amount": "20000.00"
+        }
+    },
+    {
+        "model": "financialInputs.cashbalance",
+        "pk": 3,
+        "fields": {
+            "building_id": 101,
+            "statement_date": "2015-12-1",
+            "is_from_balance_sheet": false,
+            "balance_amount": "30000.00"
+        }
+    },
+    {
+        "model": "financialInputs.cashbalance",
+        "pk": 73,
+        "fields": {
+            "building_id": 289,
+            "statement_date": "2016-12-21",
+            "is_from_balance_sheet": true,
+            "balance_amount": "50000.00"
+        }
+    },
+    {
+        "model": "financialInputs.cashbalance",
+        "pk": 75,
+        "fields": {
+            "building_id": 2002,
+            "statement_date": "2016-12-01",
+            "is_from_balance_sheet": true,
+            "balance_amount": "25000.00"
+        }
+    },
+    {
+        "model": "financialInputs.cashbalance",
+        "pk": 76,
+        "fields": {
+            "building_id": 2003,
+            "statement_date": "2015-12-10",
+            "is_from_balance_sheet": true,
+            "balance_amount": "25000.00"
+        }
+    },
+    {
+        "model": "financialInputs.cashbalance",
+        "pk": 77,
+        "fields": {
+            "building_id": 2004,
+            "statement_date": "2015-12-10",
+            "is_from_balance_sheet": true,
+            "balance_amount": "25000.00"
+        }
+    }
+]
diff --git a/blocnote/apps/budgetSimulator/fixtures/customer_preference_testdata.json b/blocnote/apps/budgetSimulator/fixtures/customer_preference_testdata.json
new file mode 100644
index 0000000000000000000000000000000000000000..5a09c6a8ff899077f6b1ebff225407d7ec61bcf6
--- /dev/null
+++ b/blocnote/apps/budgetSimulator/fixtures/customer_preference_testdata.json
@@ -0,0 +1,52 @@
+[
+    {
+        "model": "financialInputs.customerpreference",
+        "pk": 1,
+        "fields": {
+            "building_id": 100,
+            "downpayment": "100.00",
+            "expected_payback": "10",
+            "expected_net_noi_dscr": "1.15"
+        }
+    },
+    {
+        "model": "financialInputs.customerpreference",
+        "pk": 5,
+        "fields": {
+            "building_id": 289,
+            "downpayment": "50000.00",
+            "expected_payback": "12",
+            "expected_net_noi_dscr": "1.15"
+        }
+    },
+    {
+        "model": "financialInputs.customerpreference",
+        "pk": 12,
+        "fields": {
+            "building_id": 2002,
+            "downpayment": "0.00",
+            "expected_payback": "120",
+            "expected_net_noi_dscr": "1.15"
+        }
+    },
+    {
+        "model": "financialInputs.customerpreference",
+        "pk": 13,
+        "fields": {
+            "building_id": 2003,
+            "downpayment": "0.00",
+            "expected_payback": "120",
+            "expected_net_noi_dscr": "1.15"
+        }
+    },
+    {
+        "model": "financialInputs.customerpreference",
+        "pk": 14,
+        "fields": {
+            "building_id": 2004,
+            "downpayment": "0.00",
+            "expected_payback": "120",
+            "expected_net_noi_dscr": "1.15"
+        }
+    }
+]
diff --git a/blocnote/apps/budgetSimulator/fixtures/default_loan.json b/blocnote/apps/budgetSimulator/fixtures/default_loan.json
new file mode 100644
index 0000000000000000000000000000000000000000..fe300d0b933e2ad38770f1b6f3e7420fb46dad36
--- /dev/null
+++ b/blocnote/apps/budgetSimulator/fixtures/default_loan.json
@@ -0,0 +1,68 @@
+[
+    {
+        "model": "financialInputs.defaultloan",
+        "pk": 1,
+        "fields": {
+            "lender": 1,
+            "fund": 1,
+            "interest_rate": "7.000",
+            "duration": "84",
+            "max_loan_amount": "5000000.00"
+        }
+    },
+    {
+        "model": "financialInputs.defaultloan",
+        "pk": 2,
+        "fields": {
+            "lender": 2,
+            "fund": 1,
+            "interest_rate": "8.000",
+            "duration": "96",
+            "max_loan_amount": "7000000.00"
+        }
+    },
+    {
+        "model": "financialInputs.defaultloan",
+        "pk": 3,
+        "fields": {
+            "lender": 3,
+            "fund": 1,
+            "interest_rate": "10.000",
+            "duration": "72",
+            "max_loan_amount": "10000000.00"
+        }
+    },
+    {
+        "model": "financialInputs.defaultloan",
+        "pk": 4,
+        "fields": {
+            "lender": 4,
+            "fund": 2,
+            "interest_rate": "4.500",
+            "duration": "120",
+            "max_loan_amount": "8000000.00"
+        }
+    },
+    {
+        "model": "financialInputs.defaultloan",
+        "pk": 5,
+        "fields": {
+            "lender": 5,
+            "fund": 2,
+            "interest_rate": "4.500",
+            "duration": "120",
+            "max_loan_amount": "2000000.00"
+        }
+    },
+    {
+        "model": "financialInputs.defaultloan",
+        "pk": 6,
+        "fields": {
+            "lender": 2,
+            "fund": 2,
+            "interest_rate": "7.000",
+            "duration": "84",
+            "max_loan_amount": "2000000.00"
+        }
+    }
+]
diff --git a/blocnote/apps/budgetSimulator/fixtures/estimation_algorithm_testdata.json b/blocnote/apps/budgetSimulator/fixtures/estimation_algorithm_testdata.json
new file mode 100644
index 0000000000000000000000000000000000000000..193900993355b521b147f48844789dbc2028b439
--- /dev/null
+++ b/blocnote/apps/budgetSimulator/fixtures/estimation_algorithm_testdata.json
@@ -0,0 +1,34 @@
+[
+    {
+        "model": "financialInputs.estimationalgorithm",
+        "pk": 6,
+        "fields": {
+            "algorithm": "Rough Estimation",
+            "building_id": 289
+        }
+    },
+    {
+        "model": "financialInputs.estimationalgorithm",
+        "pk": 15,
+        "fields": {
+            "algorithm": "Rough Estimation",
+            "building_id": 2002
+        }
+    },
+    {
+        "model": "financialInputs.estimationalgorithm",
+        "pk": 16,
+        "fields": {
+            "algorithm": "Rough Estimation",
+            "building_id": 2003
+        }
+    },
+    {
+        "model": "financialInputs.estimationalgorithm",
+        "pk": 17,
+        "fields": {
+            "algorithm": "Rough Estimation",
+            "building_id": 2004
+        }
+    }
+]
diff --git a/blocnote/apps/budgetSimulator/fixtures/financing_overview_testdata.json b/blocnote/apps/budgetSimulator/fixtures/financing_overview_testdata.json
new file mode 100644
index 0000000000000000000000000000000000000000..f8ed3269f174fe732d5bab9bae5b9187e9f97674
--- /dev/null
+++ b/blocnote/apps/budgetSimulator/fixtures/financing_overview_testdata.json
@@ -0,0 +1,98 @@
+[
+    {
+        "model": "financialInputs.financingoverview",
+        "pk": 1,
+        "fields": {
+            "building_id": 100,
+            "fund": 1,
+            "required_noi_dscr": "0.00",
+            "requrired_cash_dscr": "0.00",
+            "pro_forma_start_date": "2014-01-01",
+            "pro_forma_duration": "25",
+            "analysis_date": "2017-05-18",
+            "anticipated_construction_start_date": "2017-07-01",
+            "anticipated_commissioning_date": "2017-08-01",
+            "anticipated_construction_period": "100"
+        }
+    },
+    {
+        "model": "financialInputs.financingoverview",
+        "pk": 94,
+        "fields": {
+            "building_id": 289,
+            "fund": 1,
+            "required_noi_dscr": "0.00",
+            "requrired_cash_dscr": "0.00",
+            "pro_forma_start_date": "2014-01-01",
+            "pro_forma_duration": "25",
+            "analysis_date": "2017-05-18",
+            "anticipated_construction_start_date": "2017-05-03",
+            "anticipated_commissioning_date": "2017-07-07",
+            "anticipated_construction_period": "100"
+        }
+    },
+    {
+        "model": "financialInputs.financingoverview",
+        "pk": 95,
+        "fields": {
+            "building_id": 2001,
+            "fund": 1,
+            "required_noi_dscr": "0.00",
+            "requrired_cash_dscr": "0.00",
+            "pro_forma_start_date": "2014-01-01",
+            "pro_forma_duration": "25",
+            "analysis_date": "2017-06-05",
+            "anticipated_construction_start_date": "2017-07-01",
+            "anticipated_commissioning_date": "2017-08-01",
+            "anticipated_construction_period": "4"
+        }
+    },
+    {
+        "model": "financialInputs.financingoverview",
+        "pk": 96,
+        "fields": {
+            "building_id": 2002,
+            "fund": 1,
+            "required_noi_dscr": "1.15",
+            "requrired_cash_dscr": "1.15",
+            "pro_forma_start_date": "2014-01-01",
+            "pro_forma_duration": "25",
+            "analysis_date": "2017-06-05",
+            "anticipated_construction_start_date": "2017-07-01",
+            "anticipated_commissioning_date": "2017-08-01",
+            "anticipated_construction_period": "4"
+        }
+    },
+    {
+        "model": "financialInputs.financingoverview",
+        "pk": 97,
+        "fields": {
+            "building_id": 2003,
+            "fund": 1,
+            "required_noi_dscr": "1.15",
+            "requrired_cash_dscr": "1.15",
+            "pro_forma_start_date": "2014-01-01",
+            "pro_forma_duration": "25",
+            "analysis_date": "2017-06-05",
+            "anticipated_construction_start_date": "2017-07-01",
+            "anticipated_commissioning_date": "2017-08-01",
+            "anticipated_construction_period": "4"
+        }
+    },
+    {
+        "model": "financialInputs.financingoverview",
+        "pk": 98,
+        "fields": {
+            "building_id": 2004,
+            "fund": 1,
+            "required_noi_dscr": "1.15",
+            "requrired_cash_dscr": "1.15",
+            "pro_forma_start_date": "2014-01-01",
+            "pro_forma_duration": "25",
+            "analysis_date": "2017-06-05",
+            "anticipated_construction_start_date": "2017-07-01",
+            "anticipated_commissioning_date": "2017-08-01",
+            "anticipated_construction_period": "4"
+        }
+    }
+]
diff --git a/blocnote/apps/budgetSimulator/fixtures/funds.json b/blocnote/apps/budgetSimulator/fixtures/funds.json
new file mode 100644
index 0000000000000000000000000000000000000000..e3d3dd2ae26df062bfa57e9cbdaa8a658fa415f9
--- /dev/null
+++ b/blocnote/apps/budgetSimulator/fixtures/funds.json
@@ -0,0 +1,16 @@
+[
+    {
+        "model": "financialInputs.fund",
+        "pk": 1,
+        "fields": {
+            "Name": "Small Commercial Fund"
+        }
+    },
+    {
+        "model": "financialInputs.fund",
+        "pk": 2,
+        "fields": {
+            "Name": "Bronx Healthy Buildings Fund"
+        }
+    }
+]
diff --git a/blocnote/apps/budgetSimulator/fixtures/growth_rate_testdata.json b/blocnote/apps/budgetSimulator/fixtures/growth_rate_testdata.json
new file mode 100644
index 0000000000000000000000000000000000000000..894d2ac52f2a095f835a7dcaf0f04082bbd49f2f
--- /dev/null
+++ b/blocnote/apps/budgetSimulator/fixtures/growth_rate_testdata.json
@@ -0,0 +1,42 @@
+[
+    {
+        "model": "financialInputs.growthrate",
+        "pk": 1,
+        "fields": {
+            "building_id": 100,
+            "growth_rate": "1"
+        }
+    },
+    {
+        "model": "financialInputs.growthrate",
+        "pk": 170,
+        "fields": {
+            "building_id": 289,
+            "growth_rate": "0.10"
+        }
+    },
+    {
+        "model": "financialInputs.growthrate",
+        "pk": 175,
+        "fields": {
+            "building_id": 2002,
+            "growth_rate": "-2.00"
+        }
+    },
+    {
+        "model": "financialInputs.growthrate",
+        "pk": 176,
+        "fields": {
+            "building_id": 2003,
+            "growth_rate": "-2.00"
+        }
+    },
+    {
+        "model": "financialInputs.growthrate",
+        "pk": 177,
+        "fields": {
+            "building_id": 2004,
+            "growth_rate": "-2.00"
+        }
+    }
+]
diff --git a/blocnote/apps/budgetSimulator/fixtures/income_statement_testdata.json b/blocnote/apps/budgetSimulator/fixtures/income_statement_testdata.json
new file mode 100644
index 0000000000000000000000000000000000000000..815c307e50ed41c02de341842caf7ac718a00735
--- /dev/null
+++ b/blocnote/apps/budgetSimulator/fixtures/income_statement_testdata.json
@@ -0,0 +1,182 @@
+[
+    {
+        "model": "financialInputs.incomestatement",
+        "pk": 1,
+        "fields": {
+            "building_id": 100,
+            "year": "2014",
+            "revenue": "200000.00",
+            "utility_expense": "90000.00",
+            "other_utility_expense": "80000.00",
+            "non_utility_operating_expense": "50000.00"
+        }
+    },
+    {
+        "model": "financialInputs.incomestatement",
+        "pk": 2,
+        "fields": {
+            "building_id": 100,
+            "year": "2015",
+            "revenue": "205000.00",
+            "utility_expense": "92000.00",
+            "other_utility_expense": "83000.00",
+            "non_utility_operating_expense": "55000.00"
+        }
+    },
+    {
+        "model": "financialInputs.incomestatement",
+        "pk": 3,
+        "fields": {
+            "building_id": 100,
+            "year": "2016",
+            "revenue": "210000.00",
+            "utility_expense": "94000.00",
+            "other_utility_expense": "86000.00",
+            "non_utility_operating_expense": "57000.00"
+        }
+    },
+    {
+        "model": "financialInputs.incomestatement",
+        "pk": 587,
+        "fields": {
+            "building_id": 289,
+            "year": "2014",
+            "revenue": "200000.00",
+            "utility_expense": "94000.00",
+            "other_utility_expense": "-14159.29",
+            "non_utility_operating_expense": "50000.00"
+        }
+    },
+    {
+        "model": "financialInputs.incomestatement",
+        "pk": 588,
+        "fields": {
+            "building_id": 289,
+            "year": "2015",
+            "revenue": "210000.00",
+            "utility_expense": "95000.00",
+            "other_utility_expense": "-12857.26",
+            "non_utility_operating_expense": "55000.00"
+        }
+    },
+    {
+        "model": "financialInputs.incomestatement",
+        "pk": 589,
+        "fields": {
+            "building_id": 289,
+            "year": "2016",
+            "revenue": "213000.00",
+            "utility_expense": "96000.00",
+            "other_utility_expense": "-14637.50",
+            "non_utility_operating_expense": "60000.00"
+        }
+    },
+    {
+        "model": "financialInputs.incomestatement",
+        "pk": 590,
+        "fields": {
+            "building_id": 2002,
+            "year": "2014",
+            "revenue": "200000.00",
+            "utility_expense": "100000.00",
+            "other_utility_expense": "93700.00",
+            "non_utility_operating_expense": "50000.00"
+        }
+    },
+    {
+        "model": "financialInputs.incomestatement",
+        "pk": 591,
+        "fields": {
+            "building_id": 2002,
+            "year": "2015",
+            "revenue": "201000.00",
+            "utility_expense": "105000.00",
+            "other_utility_expense": "98700.00",
+            "non_utility_operating_expense": "58000.00"
+        }
+    },
+    {
+        "model": "financialInputs.incomestatement",
+        "pk": 592,
+        "fields": {
+            "building_id": 2002,
+            "year": "2016",
+            "revenue": "202000.00",
+            "utility_expense": "110000.00",
+            "other_utility_expense": "103700.00",
+            "non_utility_operating_expense": "62000.00"
+        }
+    },
+    {
+        "model": "financialInputs.incomestatement",
+        "pk": 593,
+        "fields": {
+            "building_id": 2003,
+            "year": "2014",
+            "revenue": "210000.00",
+            "utility_expense": "90000.00",
+            "other_utility_expense": "-127473.13",
+            "non_utility_operating_expense": "40000.00"
+        }
+    },
+    {
+        "model": "financialInputs.incomestatement",
+        "pk": 594,
+        "fields": {
+            "building_id": 2003,
+            "year": "2015",
+            "revenue": "214000.00",
+            "utility_expense": "99000.00",
+            "other_utility_expense": "-119108.87",
+            "non_utility_operating_expense": "44000.00"
+        }
+    },
+    {
+        "model": "financialInputs.incomestatement",
+        "pk": 595,
+        "fields": {
+            "building_id": 2003,
+            "year": "2016",
+            "revenue": "219000.00",
+            "utility_expense": "108000.00",
+            "other_utility_expense": "-110839.67",
+            "non_utility_operating_expense": "50000.00"
+        }
+    },
+    {
+        "model": "financialInputs.incomestatement",
+        "pk": 596,
+        "fields": {
+            "building_id": 2004,
+            "year": "2014",
+            "revenue": "210000.00",
+            "utility_expense": "90000.00",
+            "other_utility_expense": "-127473.13",
+            "non_utility_operating_expense": "40000.00"
+        }
+    },
+    {
+        "model": "financialInputs.incomestatement",
+        "pk": 597,
+        "fields": {
+            "building_id": 2004,
+            "year": "2015",
+            "revenue": "214000.00",
+            "utility_expense": "99000.00",
+            "other_utility_expense": "-119108.87",
+            "non_utility_operating_expense": "44000.00"
+        }
+    },
+    {
+        "model": "financialInputs.incomestatement",
+        "pk": 598,
+        "fields": {
+            "building_id": 2004,
+            "year": "2016",
+            "revenue": "219000.00",
+            "utility_expense": "108000.00",
+            "other_utility_expense": "-110839.67",
+            "non_utility_operating_expense": "50000.00"
+        }
+    }
+]
diff --git a/blocnote/apps/budgetSimulator/fixtures/lender.json b/blocnote/apps/budgetSimulator/fixtures/lender.json
new file mode 100644
index 0000000000000000000000000000000000000000..07d8973f21b7085363b137a1ef65fab6c69aaa21
--- /dev/null
+++ b/blocnote/apps/budgetSimulator/fixtures/lender.json
@@ -0,0 +1,37 @@
+[
+    {
+        "model": "financialInputs.lender",
+        "pk": 1,
+        "fields": {
+            "name": "NYCEEC"
+        }
+    },
+    {
+        "model": "financialInputs.lender",
+        "pk": 2,
+        "fields": {
+            "name": "Green Bank"
+        }
+    },
+    {
+        "model": "financialInputs.lender",
+        "pk": 3,
+        "fields": {
+            "name": "Deutsche Bank"
+        }
+    },
+    {
+        "model": "financialInputs.lender",
+        "pk": 4,
+        "fields": {
+            "name": "Goldman Sachs"
+        }
+    },
+    {
+        "model": "financialInputs.lender",
+        "pk": 5,
+        "fields": {
+            "name": "HPN"
+        }
+    }
+]
diff --git a/blocnote/apps/budgetSimulator/fixtures/liabilities_testdata.json b/blocnote/apps/budgetSimulator/fixtures/liabilities_testdata.json
new file mode 100644
index 0000000000000000000000000000000000000000..30624654788ae598826411bca13f5a20d87a6114
--- /dev/null
+++ b/blocnote/apps/budgetSimulator/fixtures/liabilities_testdata.json
@@ -0,0 +1,46 @@
+[
+    {
+       "model": "financialInputs.liabilities",
+        "pk": 1,
+        "fields": {
+            "building_id": 100,
+            "input_date": "2016-01-01",
+            "lender": "Adarsh",
+            "monthly_service": "300.00",
+            "remaining_term": "120"
+        }
+    },
+    {
+       "model": "financialInputs.liabilities",
+        "pk": 2,
+        "fields": {
+            "building_id": 101,
+            "input_date": "2016-01-01",
+            "lender": "Adarsh",
+            "monthly_service": "300.00",
+            "remaining_term": "120"
+        }
+    },
+    {
+       "model": "financialInputs.liabilities",
+        "pk": 3,
+        "fields": {
+            "building_id": 101,
+            "input_date": "2015-01-01",
+            "lender": "Tom",
+            "monthly_service": "250.00",
+            "remaining_term": "100"
+        }
+    },
+    {
+        "model": "financialInputs.liabilities",
+        "pk": 54,
+        "fields": {
+            "building_id": 289,
+            "input_date": "2017-05-11",
+            "lender": "Adarsh Murthy",
+            "monthly_service": "120.00",
+            "remaining_term": "100"
+        }
+    }
+]
diff --git a/blocnote/apps/budgetSimulator/fixtures/loan_options_testdata.json b/blocnote/apps/budgetSimulator/fixtures/loan_options_testdata.json
new file mode 100644
index 0000000000000000000000000000000000000000..8d44d2adcf98b6f99f0e56f73d2c6c07069e1d52
--- /dev/null
+++ b/blocnote/apps/budgetSimulator/fixtures/loan_options_testdata.json
@@ -0,0 +1,57 @@
+[
+    {
+        "model": "financialInputs.loanoptions",
+        "pk": 1,
+        "fields": {
+            "building_id": 100,
+            "lender": 2,
+            "interest_rate": "8.000",
+            "duration": "100",
+            "max_loan_amount": "1000000.00"
+        }
+    },
+    {
+        "model": "financialInputs.loanoptions",
+        "pk": 49,
+        "fields": {
+            "building_id": 289,
+            "lender": 2,
+            "interest_rate": "8.000",
+            "duration": "120",
+            "max_loan_amount": "7000000.00"
+        }
+    },
+    {
+        "model": "financialInputs.loanoptions",
+        "pk": 50,
+        "fields": {
+            "building_id": 2002,
+            "lender": 1,
+            "interest_rate": "7.000",
+            "duration": "84",
+            "max_loan_amount": "5000000.00"
+        }
+    },
+    {
+        "model": "financialInputs.loanoptions",
+        "pk": 51,
+        "fields": {
+            "building_id": 2003,
+            "lender": 1,
+            "interest_rate": "7.000",
+            "duration": "84",
+            "max_loan_amount": "5000000.00"
+        }
+    },
+    {
+        "model": "financialInputs.loanoptions",
+        "pk": 54,
+        "fields": {
+            "building_id": 2004,
+            "lender": 1,
+            "interest_rate": "7.000",
+            "duration": "84",
+            "max_loan_amount": "5000000.00"
+        }
+    }
+]
diff --git a/blocnote/apps/budgetSimulator/migrations/__init__.py b/blocnote/apps/budgetSimulator/migrations/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/blocnote/apps/budgetSimulator/models.py b/blocnote/apps/budgetSimulator/models.py
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/blocnote/apps/budgetSimulator/static/budgetSimulator/scripts/app.js b/blocnote/apps/budgetSimulator/static/budgetSimulator/scripts/app.js
new file mode 100644
index 0000000000000000000000000000000000000000..dc3fc764f44bc4ccc92aebb5edff04ba413325a5
--- /dev/null
+++ b/blocnote/apps/budgetSimulator/static/budgetSimulator/scripts/app.js
@@ -0,0 +1,122 @@
+function generateGraph(budgets, savingPotentialList) {
+  const config = {
+    type: 'line',
+    data: {
+      labels: savingPotentialList,
+      datasets: [{
+        backgroundColor: 'transparent',
+        borderColor: '#F78511',
+        pointBackgroundColor: '#000000',
+        type: 'line',
+        label: 'Budget with Loan only',
+        data: budgets[0],
+      }, {
+        backgroundColor: 'transparent',
+        borderColor: '#66B2FF',
+        pointBackgroundColor: '#000000',
+        type: 'line',
+        label: 'Budget with Loan first',
+        data: budgets[1],
+      }, {
+        backgroundColor: 'transparent',
+        borderColor: '#000000',
+        pointBackgroundColor: '#000000',
+        type: 'line',
+        label: 'Budget with SF first',
+        data: budgets[2],
+      }, {
+        backgroundColor: 'transparent',
+        borderColor: '#99FF99',
+        pointBackgroundColor: '#000000',
+        type: 'line',
+        label: 'Budget with SF maximum',
+        data: budgets[3],
+      }],
+    },
+    options: {
+      scales: {
+        yAxes: [{
+          scaleLabel: {
+            display: true,
+            labelString: 'Budget Value in $',
+          },
+        }],
+        xAxes: [{
+          scaleLabel: {
+            display: true,
+            labelString: 'Savings',
+          },
+        }],
+      },
+    },
+  };
+  const ctx = document.getElementById('budget_graph').getContext('2d');
+  new Chart(ctx, config);
+}
+
+/**
+ * Take all the tables data from the backend and fill in the cells.
+ *
+ * @param {any} tables : List of all tables. Each table has list of rows.
+ * @param {any} savingsPotentialList : List of table headings.
+ */
+function fillTables(tables, savingsPotentialList) {
+  // Go over the keys in the tables dictionary.
+  Object.keys(tables).forEach((tableName) => {
+    // For each table, get its head and body.
+    const head = document.querySelector(`#${tableName} thead`);
+    const body = document.querySelector(`#${tableName} tbody`);
+
+    // The following lines get the heading row to insert the headings received from backend.
+    const headingRowCount = head.rows.length;
+    const headingRow = head.insertRow(headingRowCount);
+    let cell = headingRow.insertCell(0);
+    cell.innerHTML = 'Savings';
+    const savingsLength = savingsPotentialList.length;
+    for (let cellIndex = 1; cellIndex <= savingsLength; cellIndex += 1) {
+      cell = headingRow.insertCell(cellIndex);
+      cell.innerHTML = ` ${Number(savingsPotentialList[cellIndex - 1]) * 100} %`;
+    }
+
+    // The following fills in the row data for each table.
+    const table = tables[tableName];
+    table.forEach((rowData) => {
+      const rowCount = body.rows.length;
+      const row = body.insertRow(rowCount);
+      rowData.forEach((cellData, index) => {
+        cell = row.insertCell(index);
+        cell.innerHTML = cellData;
+      });
+    });
+  });
+}
+
+/**
+ * Make a GET request to the backend to get all the data needed to generate the graph and tables.
+ *
+ */
+function getBudgetData() {
+  request(`budget-data`, {
+    method: 'GET',
+    credentials: 'same-origin',
+    headers: {
+      'Content-Type': 'application/json',
+    },
+  }).then((res) => {
+    if (!res.err) {
+      const tables = res.payload.instance.tables;
+      const savingsPotentialList = res.payload.instance.saving_potential_list;
+      const budgets = Object.keys(tables).map(tableName => tables[tableName][0].slice(1,));
+      generateGraph(budgets, savingsPotentialList);
+      fillTables(tables, savingsPotentialList);
+    } else {
+      res.err.responseBody.then((error) => {
+        document.querySelector('#budget_error_msg').innerHTML = `
+                    <font color="red">${error.error}</font>
+                `;
+      });
+    }
+  });
+}
+
+getBudgetData();
diff --git a/blocnote/apps/budgetSimulator/templates/budgetSimulator/index.html b/blocnote/apps/budgetSimulator/templates/budgetSimulator/index.html
new file mode 100644
index 0000000000000000000000000000000000000000..c20b9c867fc885a1b761e36cd83332a4da7727cc
--- /dev/null
+++ b/blocnote/apps/budgetSimulator/templates/budgetSimulator/index.html
@@ -0,0 +1,86 @@
+{% extends 'base.html' %}
+{% load staticfiles %}
+{% block content %}
+<div class="card">
+    <h3 class="card-title" align="center">Budget Simulator</h3>
+    <div id="budget_error_msg">
+    </div>
+    <div id="budget-graph" class="card">
+        <canvas id="budget_graph" height="500"></canvas>
+    </div>
+    <div id="budget-tables" class="card">
+        <div class="row">
+            <!-- Nav tabs -->
+            <ul class="nav nav-tabs" role="tablist">
+                <li class="nav-item">
+                    <a class="nav-link active" data-toggle="tab" href="#budget_without_downpayment" role="tab">Budget with Loan only</a>
+                </li>
+                <li class="nav-item">
+                    <a class="nav-link" data-toggle="tab" href="#budget_with_downpayment_loan_first" role="tab">Budget with Loan first</a>
+                </li>
+                <li class="nav-item">
+                    <a class="nav-link" data-toggle="tab" href="#max_budget_downpayment_first" role="tab">Budget with SF first</a>
+                </li>
+                <li class="nav-item">
+                    <a class="nav-link" data-toggle="tab" href="#tbd" role="tab">Budget with SF Maximum</a>
+                </li>
+            </ul>
+        </div>
+    </div>
+    <div class="row">
+        <div class="tab-content">
+            <div class="tab-pane fade show active" id="budget_without_downpayment" role="tabpanel">
+                <div class="card-block">
+                    Budget with Loan only
+                    <table id="budget_loan_only" class="table table-striped table-bordered">
+                        <thead>
+                        </thead>
+                        <tbody>
+                        </tbody>
+                    </table>
+                </div>
+            </div>
+            <div class="tab-pane fade" id="budget_with_downpayment_loan_first" role="tabpanel">
+                <div class="card-block">
+                    Budget with Loan first
+                    <table id="budget_loan_first" class="table table-striped table-bordered">
+                        <thead>
+                        </thead>
+                        <tbody>
+                        </tbody>
+                    </table>
+                </div>
+            </div>
+            <div class="tab-pane fade" id="max_budget_downpayment_first" role="tabpanel">
+                <div class="card-block">
+                    Budget with SF first
+                    <table id="budget_sf_first" class="table table-striped table-bordered">
+                        <thead>
+                        </thead>
+                        <tbody>
+                        </tbody>
+                    </table>
+                </div>
+            </div>
+            <div class="tab-pane fade" id="tbd" role="tabpanel">
+                <div class="card-block">
+                    Budget with SF maximum
+                    <table id="budget_sf_max" class="table table-striped table-bordered">
+                        <thead>
+                        </thead>
+                        <tbody>
+                        </tbody>
+                    </table>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>
+<a href="{% url 'landingPage:index' building_id %}">Go Back</a>
+{% endblock %}
+{% block scripts %}
+  <script src="{% static "scripts/request.js" %}"></script>
+  <script src="//cdnjs.cloudflare.com/ajax/libs/js-cookie/2.1.3/js.cookie.min.js"></script>
+  <script src="//cdnjs.cloudflare.com/ajax/libs/Chart.js/2.5.0/Chart.bundle.js"></script>
+  <script src="{% static "budgetSimulator/scripts/app.js" %}"></script>
+{% endblock %}
diff --git a/blocnote/apps/budgetSimulator/tests.py b/blocnote/apps/budgetSimulator/tests.py
new file mode 100644
index 0000000000000000000000000000000000000000..73493e431638a2365e45fb4a4418bc977d46283b
--- /dev/null
+++ b/blocnote/apps/budgetSimulator/tests.py
@@ -0,0 +1,558 @@
+"""Test all the function and views in budget endpoint."""
+from datetime import date
+from django.test import TestCase
+
+from bpfin.back_end_call.back_end_budget import budget_simulation
+
+from .views import get_analysis_commissioning_dates, get_customer_preference, get_growth_rate, get_liability
+from .views import get_cash_balance, get_loan_input, get_raw_income_statement, get_annual_bills, get_raw_bill
+
+
+class GetAnalysisCommissioningDatesTest(TestCase):
+    """Test get_analysis_commissioning_dates function."""
+
+    fixtures = ['funds.json', 'financing_overview_testdata.json']
+
+    def test_analysis_commissioning_date_1(self):
+        """Fetch analysis date and commissioning date for a building with no data in database.
+
+        Building with id 233 does not have financing overview records stored. This should raise an attribute error.
+        """
+        self.assertRaises(AttributeError, get_analysis_commissioning_dates, 233)
+
+    def test_analysis_commissioning_date_2(self):
+        """Fetch analysis date and commissioning date for a building with data."""
+        analysis_date, commissioning_date = get_analysis_commissioning_dates(100)
+        expected_analysis_date = {
+            'proforma_start': date(2014, 1, 1),
+            'proforma_duration': 25,
+        }
+        expected_commissioning_date = date(2017, 8, 1)
+        self.assertEqual(analysis_date, expected_analysis_date)
+        self.assertEqual(commissioning_date, expected_commissioning_date)
+
+
+class GetCustomerPreferenceTest(TestCase):
+    """Test get_customer_preference function."""
+
+    fixtures = ['customer_preference_testdata.json']
+
+    def test_customer_preference_1(self):
+        """Fetch customer preference for building with no data.
+
+        No customer preference record exists for building id 233. AttributeError should be raised.
+        """
+        self.assertRaises(AttributeError, get_customer_preference, 233)
+
+    def test_customer_preference_2(self):
+        """Create customer preference record and test get_customer_preference function."""
+        customer_preference = get_customer_preference(100)
+        expected_customer_preference = {
+            'downpayment_max':  100.0,
+            'expected_payback': 10,
+            'cust_saving_dscr': 1.15,
+        }
+        self.assertEqual(customer_preference, expected_customer_preference)
+
+
+class GetGrowthRateTest(TestCase):
+    """Test get_growth_rate function."""
+
+    fixtures = ['growth_rate_testdata.json']
+
+    def test_growth_rate_1(self):
+        """Fetch growth rate for building with no data in database.
+
+        No growth is stored for building with id 233. This should raise an AttributeError.
+        """
+        self.assertRaises(AttributeError, get_growth_rate, 233)
+
+    def test_growth_rate_2(self):
+        """Create growth rate and test get_growth_rate function."""
+        growth_rate = get_growth_rate(100)
+        expected_growth_rate = 1
+        self.assertEqual(growth_rate, expected_growth_rate)
+
+
+class GetLiabilitiesTest(TestCase):
+    """Test get_liability function."""
+
+    fixtures = ['liabilities_testdata.json']
+
+    def test_liabilities_1(self):
+        """Test get_liability for building with with no data.
+
+        No liabilities records exists for this building hence empty dictionary should be returned.
+        """
+        liabilities = get_liability(233)
+        self.assertEqual(liabilities, {})
+
+    def test_liabilities_2(self):
+        """Test get_liability when 1 record exists.
+
+        Create a liability record for this building id test the reult.
+        """
+        liability = get_liability(100)
+        expected_liability = {
+            'debt1': (300, "Adarsh", 120, date(2016, 1, 1))
+        }
+        self.assertEqual(liability, expected_liability)
+
+    def test_liability_3(self):
+        """Test get_liability when 2 records exist.
+
+        Create 2 liability records for building 233 and validate the output.
+        """
+        liability = get_liability(101)
+        expected_liability = {
+            'debt1': (300, "Adarsh", 120, date(2016, 1, 1)),
+            'debt2': (250, "Tom", 100, date(2015, 1, 1))
+        }
+        self.assertEqual(liability, expected_liability)
+
+
+class GetCashBalanceTest(TestCase):
+    """Test get_cash_balance function."""
+
+    fixtures = ['cash_balance_testdata.json']
+
+    def test_cash_balance_1(self):
+        """Test get_cash_balance for building with no data.
+
+        No cash balance record exist for this building so it should raise an AttributeError.
+        """
+        self.assertRaises(AttributeError, get_cash_balance, 233)
+
+    def test_cash_balance_2(self):
+        """Test get_cash_balance with 1 record.
+
+        Create a cash balance record for building 233 and validate the result.
+        """
+        cash_balance = get_cash_balance(100)
+        expected_cash_balance = {
+            date(2016, 12, 1): (20000, True),
+        }
+        self.assertEqual(cash_balance, expected_cash_balance)
+
+    def test_cash_balance_3(self):
+        """Test get_cash_balance with 2 records.
+
+        Create 2 cash balance records for building 233 and validate the result.
+        """
+        cash_balance = get_cash_balance(101)
+        expected_cash_balance = {
+            date(2016, 12, 1): (20000, True),
+            date(2015, 12, 1): (30000, False),
+        }
+        self.assertEqual(cash_balance, expected_cash_balance)
+
+
+class GetLoanInputTest(TestCase):
+    """Test get_loan_input function."""
+
+    fixtures = ['lender.json', 'loan_options_testdata.json']
+
+    def test_loan_input_1(self):
+        """Test get_cash_balance for building with no data in database.
+
+        No loan options record exist for this building hence it should raise AttributeError.
+        """
+        self.assertRaises(AttributeError, get_loan_input, 233)
+
+    def test_loan_input_2(self):
+        """Test get_cash_balance with one record.
+
+        Create a lender record. Create a loan options record and validate get_loan_input.
+        """
+        loan_options = get_loan_input(100)
+        expected_loan_options = [
+            {
+                'institute': "Green Bank",
+                'max_amount': 1000000,
+                'interest': 0.08,
+                'duration': 100,
+            }
+        ]
+        self.assertEqual(loan_options, expected_loan_options)
+
+
+class GetRawIncomeStatementTest(TestCase):
+    """Test get_raw_income_statement function."""
+
+    fixtures = ['income_statement_testdata.json']
+
+    def test_income_statement_1(self):
+        """Test get_raw_income_statement for building with no data in database.
+
+        No income statement exists for building 233. This should raise AttributeError.
+        """
+        self.assertRaises(AttributeError, get_raw_income_statement, 233)
+
+    def test_income_statement_2(self):
+        """Test get_raw_income_statement for a set of good values.
+
+        Create income statement objects for the 3 years and test the function.
+        """
+        raw_income_statement_input = get_raw_income_statement(100)
+        expected_raw_income_statement = {
+            2014: {
+                'revenue': 200000,
+                'utility_expense': 90000,
+                'non_utility_expense': 50000,
+            },
+            2015: {
+                'revenue': 205000,
+                'utility_expense': 92000,
+                'non_utility_expense': 55000,
+            },
+            2016: {
+                'revenue': 210000,
+                'utility_expense': 94000,
+                'non_utility_expense': 57000,
+            },
+        }
+        self.assertEqual(raw_income_statement_input, expected_raw_income_statement)
+
+
+class GetAnnualBillsTest(TestCase):
+    """Test get_annual_bills function."""
+
+    fixtures = ['bills_overview_testdata']
+
+    def test_annual_bills_1(self):
+        """Test get_annual_bills for building with no records in database.
+
+        No records exist for this building hence this should return an empty dictionary.
+        """
+        annual_bills = get_annual_bills(233)
+        expected_annual_bills = {
+            'electricity': None,
+            'gas': None,
+            'oil': None,
+            'water': None,
+        }
+        self.assertEqual(annual_bills, expected_annual_bills)
+
+    def test_annual_bills_2(self):
+        """Test get_annual_bills for electricity records for a year.
+
+        Create a bills overview record with only electricity data and test the function.
+        """
+        annual_bills = get_annual_bills(100)
+        expected_annual_bills = {
+            'electricity': {
+                2014: 10000,
+            },
+            'gas': None,
+            'oil': None,
+            'water': None,
+        }
+        self.assertEqual(annual_bills, expected_annual_bills)
+
+    def test_annual_bills_3(self):
+        """Test get_annual_bills with electricity values for 3 years.
+
+        Create a bills overview records with only electricity data for 3 different years and test the function.
+        """
+        annual_bills = get_annual_bills(101)
+        expected_annual_bills = {
+            'electricity': {
+                2014: 10000,
+                2015: 12000,
+                2016: 15000,
+            },
+            'gas': None,
+            'oil': None,
+            'water': None,
+        }
+        self.assertEqual(annual_bills, expected_annual_bills)
+
+    def test_annual_bills_4(self):
+        """Test get_annual_bills for electricity and gas values for 1 year each.
+
+        Create a bills overview record with only electricity and gas data and test the function.
+        """
+        annual_bills = get_annual_bills(102)
+        expected_annual_bills = {
+            'electricity': {
+                2014: 10000,
+            },
+            'gas': {
+                2014: 5000,
+            },
+            'oil': None,
+            'water': None,
+        }
+        self.assertEqual(annual_bills, expected_annual_bills)
+
+    def test_annual_bills_5(self):
+        """Test get_annual_bills for electricity, gas and water records for 1 year.
+
+        Create a bills overview record with only electricity, gas and water data and test the function.
+        """
+        annual_bills = get_annual_bills(103)
+        expected_annual_bills = {
+            'electricity': {
+                2014: 10000,
+            },
+            'gas': {
+                2014: 5000,
+            },
+            'water': {
+                2014: 17000,
+            },
+            'oil': None,
+        }
+        self.assertEqual(annual_bills, expected_annual_bills)
+
+    def test_annual_bills_6(self):
+        """Test get_annual_bills with electricity 3 years, gas 2 and water 1 year.
+
+        Create a bills overview record and test the function.
+        """
+        annual_bills = get_annual_bills(104)
+        expected_annual_bills = {
+            'electricity': {
+                2014: 10000,
+                2015: 12000,
+                2016: 14000,
+            },
+            'gas': {
+                2015: 5000,
+                2016: 7000,
+            },
+            'water': {
+                2016: 17000,
+            },
+            'oil': None,
+        }
+        self.assertEqual(annual_bills, expected_annual_bills)
+
+
+class GetRawBillsTest(TestCase):
+    """Test get_raw_bill function."""
+
+    fixtures = ['bills_testdata.json']
+
+    def test_raw_bills_1(self):
+        """Test the function for building with no records.
+
+        No bills exist for this building so it should return empty dictionary.
+        """
+        raw_bills = get_raw_bill(233)
+        self.assertEqual(raw_bills, {})
+
+    def test_raw_bills_2(self):
+        """Test function with electricity bill.
+
+        Create Bills record with electricity bill and validate the function.
+        """
+        raw_bills = get_raw_bill(100)
+        expected_raw_bills = {
+            'electricity': {
+                'utility_type': 'electricity',
+                'date_from': [date(2015, 1, 1)],
+                'date_to': [date(2015, 12, 31)],
+                'charge': [5000],
+                'usage': [100],
+            },
+        }
+        self.assertEqual(raw_bills, expected_raw_bills)
+
+    def test_raw_bills_3(self):
+        """Test function with electricity and gas bill.
+
+        Create Bills record with electricity and gas bills and validate the function.
+        """
+        raw_bills = get_raw_bill(102)
+        expected_raw_bills = {
+            'electricity': {
+                'utility_type': 'electricity',
+                'date_from': [date(2015, 1, 1)],
+                'date_to': [date(2015, 12, 31)],
+                'charge': [5000],
+                'usage': [100],
+            },
+            'gas': {
+                'utility_type': 'gas',
+                'date_from': [date(2014, 1, 1)],
+                'date_to': [date(2014, 12, 31)],
+                'charge': [7000],
+                'usage': [200],
+            }
+        }
+        self.assertEqual(raw_bills, expected_raw_bills)
+
+    def test_raw_bills_4(self):
+        """Test function for all 4 utilities.
+
+        Create Bills record with all bills and validate the function.
+        """
+        raw_bills = get_raw_bill(103)
+        expected_raw_bills = {
+            'electricity': {
+                'utility_type': 'electricity',
+                'date_from': [date(2014, 1, 1), date(2015, 1, 1), date(2016, 1, 1)],
+                'date_to': [date(2014, 12, 31), date(2015, 12, 31), date(2016, 12, 31)],
+                'charge': [5000, 10000, 13000],
+                'usage': [100, 200, 300],
+            },
+            'gas': {
+                'utility_type': 'gas',
+                'date_from': [date(2015, 1, 1), date(2016, 1, 1)],
+                'date_to': [date(2015, 12, 31), date(2016, 12, 31)],
+                'charge': [7000, 9500],
+                'usage': [200, 400],
+            },
+            'oil': {
+                'utility_type': 'oil',
+                'date_from': [date(2015, 1, 1), date(2016, 1, 1)],
+                'date_to': [date(2015, 12, 31), date(2016, 12, 31)],
+                'charge': [5000, 6000],
+                'usage': [100, 250],
+            },
+            'water': {
+                'utility_type': 'water',
+                'date_from': [date(2016, 1, 1)],
+                'date_to': [date(2016, 12, 31)],
+                'charge': [2000],
+                'usage': [200],
+            },
+        }
+        self.assertEqual(raw_bills, expected_raw_bills)
+
+
+class BudgetSimulatorIndexTest(TestCase):
+    """Test the index view of budget endpoint."""
+
+    def test_index_test_1(self):
+        """Test the get route which simply renders an html.
+
+        Make sure the status is 200, and building_id is in the context of the response.
+        """
+        response = self.client.get('/buildings/233/budget/')
+        self.assertEqual(response.status_code, 200)
+        self.assertTrue('building_id' in response.context)
+        self.assertEqual(response.context['building_id'], '233')
+
+
+class BudgetSimulatorBudgetView(TestCase):
+    """Test the budget view of the budget endpoint."""
+
+    fixtures = [
+        'funds.json',
+        'financing_overview_testdata.json',
+        'bills_testdata.json',
+        'estimation_algorithm_testdata.json',
+        'bills_overview_testdata.json',
+        'customer_preference_testdata',
+        'liabilities_testdata.json',
+        'cash_balance_testdata.json',
+        'income_statement_testdata.json',
+        'default_loan.json',
+        'loan_options_testdata.json',
+        'growth_rate_testdata.json',
+        'lender.json',
+        ]
+
+    def test_budget_view_1(self):
+        """Test budget view for building with id 2000 which has no inputs stored.
+
+        building with id 2000 has no inputs stored. This should return a status code of 400.
+        """
+        response = self.client.get('/buildings/2000/budget/budget-data/')
+        self.assertEqual(response.status_code, 400)
+
+    def test_budget_view_2(self):
+        """Test budget view for building with id 289 which has all the right inputs stored.
+
+        Building with id 289 has all inputs store. This should return a status 200 with all the right outputs
+        for budget simulation.
+        """
+        response = self.client.get('/buildings/289/budget/budget-data/')
+        response_content = response.json()
+        req_dscr = {
+            'req_noi_dscr': 1.15,
+            'req_cash_dscr': 1.15,
+            'req_saving_dscr': 1.10,
+        }
+        analysis_date, commissioning_date = get_analysis_commissioning_dates(289)
+        result = budget_simulation(
+            analysis_date,
+            commissioning_date,
+            get_customer_preference(289),
+            req_dscr,
+            get_raw_bill(289),
+            get_annual_bills(289),
+            get_raw_income_statement(289),
+            get_growth_rate(289),
+            get_liability(289),
+            get_cash_balance(289),
+            get_loan_input(289)
+        )
+        self.assertEqual(response.status_code, 200)
+        self.assertTrue('instance' in response_content)
+        self.assertTrue('tables' in response_content['instance'])
+        self.assertTrue('saving_potential_list' in response_content['instance'])
+        self.assertEqual(len(result), 4)
+
+    def test_budget_view_3(self):
+        """Test budget view for building with id 2001 with only the proforma inputs stored.
+
+        Building with id 2001 has only the proforma inputs stored. This should return a status code of 200.
+        """
+        response = self.client.get('/buildings/2001/budget/budget-data/')
+        self.assertEqual(response.status_code, 400)
+
+    def test_budget_view_4(self):
+        """Test budget view for building with id 2002 with all inputs but water utility empty stored.
+
+        Building with id 2002 has everything stored. The bills overview has water as empty. This should return
+        a status code of 200.
+        """
+        response = self.client.get('/buildings/2002/budget/budget-data/')
+        response_content = response.json()
+        self.assertEqual(response.status_code, 200)
+        self.assertTrue('instance' in response_content)
+        self.assertTrue('tables' in response_content['instance'])
+        self.assertTrue('saving_potential_list' in response_content['instance'])
+
+    def test_budget_view_5(self):
+        """Test budget for building with id 2003 all inputs but liability stored.
+
+        Building with id 2003 has all inputs stored except Liabilities. This should still return a success status with
+        status code 200.
+        """
+        response = self.client.get('/buildings/2003/budget/budget-data/')
+        response_content = response.json()
+        req_dscr = {
+            'req_noi_dscr': 1.15,
+            'req_cash_dscr': 1.15,
+            'req_saving_dscr': 1.10,
+        }
+        analysis_date, commissioning_date = get_analysis_commissioning_dates(2003)
+        result = budget_simulation(
+            analysis_date,
+            commissioning_date,
+            get_customer_preference(2003),
+            req_dscr,
+            get_raw_bill(2003),
+            get_annual_bills(2003),
+            get_raw_income_statement(2003),
+            get_growth_rate(2003),
+            get_liability(2003),
+            get_cash_balance(2003),
+            get_loan_input(2003)
+        )
+        self.assertEqual(response.status_code, 200)
+        self.assertTrue('instance' in response_content)
+        self.assertTrue('tables' in response_content['instance'])
+        self.assertTrue('saving_potential_list' in response_content['instance'])
+        self.assertEqual(len(result), 4)
+
+    def test_budget_view_6(self):
+        """"Test budget view when electricity bill does not have 12 months data."""
+        response = self.client.get('/buildings/2004/budget/budget-data/')
+        response_content = response.json()
+        self.assertEqual(response.status_code, 400)
+        self.assertTrue('error' in response_content)
diff --git a/blocnote/apps/budgetSimulator/urls.py b/blocnote/apps/budgetSimulator/urls.py
new file mode 100644
index 0000000000000000000000000000000000000000..069f62a876380df28e02af104d6d3ad82e6a9e66
--- /dev/null
+++ b/blocnote/apps/budgetSimulator/urls.py
@@ -0,0 +1,10 @@
+from django.conf.urls import url
+
+from . import views
+
+app_name = 'budget_simulator'
+urlpatterns = [
+    url(r'^$', views.Index.as_view(), name='index'),
+    url(r'^budget-data/$', views.Budget.as_view(), name='budget'),
+]
+
diff --git a/blocnote/apps/budgetSimulator/views.py b/blocnote/apps/budgetSimulator/views.py
new file mode 100644
index 0000000000000000000000000000000000000000..8d1c432d4c9b1a348a7183a705653616140e71b7
--- /dev/null
+++ b/blocnote/apps/budgetSimulator/views.py
@@ -0,0 +1,304 @@
+"""Define the endpoints for budget simulator."""
+from django.shortcuts import render
+from django.views import View
+from django.http import JsonResponse
+
+from bpfin.back_end_call.back_end_budget import budget_simulation
+
+from blocnote.apps.financialInputs.models import FinancingOverview, Bills, BillsOverview, IncomeStatement, GrowthRate
+from blocnote.apps.financialInputs.models import Liabilities, CashBalance, CustomerPreference, LoanOptions
+
+
+def get_analysis_commissioning_dates(building_id):
+    """Fetch the proforma start date, proforma duration and commissioning date."""
+    financing_overview_objects = FinancingOverview.objects.filter(building_id=building_id)
+    if financing_overview_objects:
+        analysis_date = {
+            'proforma_start': financing_overview_objects[0].pro_forma_start_date,
+            'proforma_duration': int(financing_overview_objects[0].pro_forma_duration),
+        }
+        return analysis_date, financing_overview_objects[0].anticipated_commissioning_date
+    else:
+        raise AttributeError("Could not find commissioning date for given building id.")
+
+
+def get_customer_preference(building_id):
+    """Fetch the customer preference from the database for this building id."""
+    customer_preference_objs = CustomerPreference.objects.filter(building_id=building_id)
+    if customer_preference_objs:
+        customer_preference_obj = customer_preference_objs[0]
+        customer_preference = {
+            'downpayment_max': float(customer_preference_obj.downpayment),
+            'expected_payback': int(customer_preference_obj.expected_payback),
+            'cust_saving_dscr': float(customer_preference_obj.expected_net_noi_dscr)
+        }
+        return customer_preference
+    else:
+        raise AttributeError("Could not find customer preference data for this building id.")
+
+
+def get_raw_bill(building_id):
+    """Fetch the utility bills for a given building id."""
+    utilities = [
+        'electricity',
+        'gas',
+        'oil',
+        'water',
+    ]
+    raw_bill_table = {}
+    for utility_type in utilities:
+        bills_object = Bills.objects.filter(
+            building_id=building_id,
+            utility_type=utility_type,
+            )
+
+        if bills_object:
+            raw_bill = {}
+            raw_bill['utility_type'] = utility_type
+            raw_bill['date_from'] = []
+            raw_bill['date_to'] = []
+            raw_bill['charge'] = []
+            raw_bill['usage'] = []
+
+            for bill in bills_object:
+                raw_bill['date_from'].append(bill.date_from)
+                raw_bill['date_to'].append(bill.date_to)
+                raw_bill['usage'].append(float(bill.usage))
+                raw_bill['charge'].append(float(bill.charge))
+            raw_bill_table[utility_type] = raw_bill
+    return raw_bill_table
+
+
+def get_annual_bills(building_id):
+    """Fetch manually input annual values from the database."""
+    annual_bills = {}
+    utilities = ['electricity', 'gas', 'oil', 'water']
+    bills_overview_objs = BillsOverview.objects.filter(building_id=building_id)
+    for obj in bills_overview_objs:
+        for utility in utilities:
+            if obj.__dict__[utility+'_is_user_input']:
+                if utility not in annual_bills:
+                    annual_bills[utility] = {}
+                value = float(obj.__dict__[utility]) if obj.__dict__[utility] else None
+                annual_bills[utility][obj.__dict__['year']] = value
+    for utility in utilities:
+        if utility not in annual_bills:
+            annual_bills[utility] = None
+    return annual_bills
+
+
+def get_raw_income_statement(building_id):
+    """Fetch income statement data from database.
+
+    Args:
+        building_id: id of the building.
+
+    Returns:
+        raw_income_statement: Dictionary with key as year and value a dictionary with revenue, utility expense and
+                              non-utility expense data.
+    """
+    income_statement_objs = IncomeStatement.objects.filter(building_id=building_id)
+    raw_income_statment = {}
+    if income_statement_objs:
+        for obj in income_statement_objs:
+            record = {}
+            record['revenue'] = float(obj.revenue)
+            record['utility_expense'] = float(obj.utility_expense)
+            record['non_utility_expense'] = float(obj.non_utility_operating_expense)
+            raw_income_statment[int(obj.year)] = record
+        return raw_income_statment
+    else:
+        raise AttributeError("Could not find income statement values for this building id.")
+
+
+def get_growth_rate(building_id):
+    """Fetch growth rate from the database.
+
+    Args:
+        building_id: id of the building.
+
+    Returns:
+        growth_rate: Growth rate stored for this building.
+    """
+    growth_rate_obj = GrowthRate.objects.filter(building_id=building_id)
+    if growth_rate_obj:
+        return float(growth_rate_obj[0].growth_rate)
+    else:
+        raise AttributeError("Could not find growth rate for this building id.")
+
+
+def get_liability(building_id):
+    """Obtain liability information.
+
+    Fetch the records containing the liability information from the database.
+
+    Args:
+        building_id: id of the building.
+        analysis_date: Dictionary containing:
+                        proforma_start with value Start of projection.
+                        proforma_duration with value Total duration of projection.
+
+    Returns:
+        liability_dictionary: Dictionary containing:
+                                keys:
+                                    debt_id- id of the debt.
+                                                value- dictionary containing:
+                                                keys:
+                                                    1. lender with value as lender for the liability/mortgage.
+                                                    2. date with value when the mortgage/liabiity statment was
+                                                        requested.
+                                                    3. remaining_term with value the number of months remaining
+                                                        in the mortgage/liability.
+                                                    4. liability with value as monthly service for the mortgage.
+    """
+    liability_objs = Liabilities.objects.filter(building_id=building_id)
+    liabilities_input = {}
+    if liability_objs:
+        for index, obj in enumerate(liability_objs, 1):
+            key = 'debt'+str(index)
+            liability = float(obj.monthly_service)
+            lender = obj.lender
+            remaining_term = int(obj.remaining_term)
+            input_date = obj.input_date
+            liabilities_input[key] = (liability, lender, remaining_term, input_date)
+    return liabilities_input
+
+
+def get_cash_balance(building_id):
+    """Fetch Cash Balance data from Database.
+
+    Args:
+        building_id: id of the building.
+
+    Returns:
+        cash_balance: Dictionary that contains:
+                        keys:
+                            statement_date- date of the statement(Cash balance or bank statement).
+                                            value- Tuple containing balance amount and a boolean saying if it is
+                                                    from balance sheet or not.
+    """
+    cash_balance_objs = CashBalance.objects.filter(building_id=building_id)
+    if cash_balance_objs:
+        cash_balance_input = {}
+        for obj in cash_balance_objs:
+            cash_balance_input[obj.statement_date] = (float(obj.balance_amount), obj.is_from_balance_sheet)
+        return cash_balance_input
+    else:
+        raise AttributeError("Could not find cash balance for this building id.")
+
+
+def get_loan_input(building_id):
+    """Fetch loan options from database.
+
+    Args:
+        building_id: id of the building.
+
+    Returns:
+        loan_options: List of records. Each record is a dicitonary containing instititue, max loan amount, rate of
+                        interest and duration for loan.
+    """
+    loan_options_objs = LoanOptions.objects.filter(building_id=building_id)
+    if loan_options_objs:
+        loan_options = [{
+            'institute': obj.lender.name,
+            'max_amount': float(obj.max_loan_amount),
+            'interest': float(obj.interest_rate)/100,
+            'duration': int(obj.duration),
+        } for obj in loan_options_objs]
+        return loan_options
+    else:
+        raise AttributeError("Could not find Loan Options for this building id.")
+
+
+class Index(View):
+    """Fetch the inputs, calculate the budget and display the graph and tables."""
+
+    def get(self, request, building_id):
+        """HTTP GET request."""
+        context = {
+            'building_id': building_id,
+        }
+        return render(request, 'budgetSimulator/index.html', context=context)
+
+
+class Budget(View):
+    """Fetch the data required for budget simulation and perform simulation. Send results to the frontend."""
+
+    # pylint: disable=unused-argument
+    def get(self, request, building_id):
+        """HTTP GET request.
+
+        Fetch data from database and make calls to bp functions to simulate budget and send result to frontend.
+        """
+        # This is hard coded for the time being as finance team have not implemented logic for other values.
+        req_dscr = {
+            'req_noi_dscr': 1.15,
+            'req_cash_dscr': 1.15,
+            'req_saving_dscr': 1.10
+        }
+
+        # Fetch values from the database needed to perform the budget simulation.
+        try:
+            analysis_date, commissioning_date = get_analysis_commissioning_dates(building_id)
+            customer_preference = get_customer_preference(building_id)
+            raw_bills = get_raw_bill(building_id)
+            annual_bills = get_annual_bills(building_id)
+            raw_income_statement = get_raw_income_statement(building_id)
+            growth_rate = get_growth_rate(building_id)
+            liabilities = get_liability(building_id)
+            cash_balance = get_cash_balance(building_id)
+            loan_options = get_loan_input(building_id)
+        except Exception as err:
+            error = err.args[0]
+            return JsonResponse({'error': error}, status=400)
+        try:
+            result = budget_simulation(
+                analysis_date,
+                commissioning_date,
+                customer_preference,
+                req_dscr,
+                raw_bills,
+                annual_bills,
+                raw_income_statement,
+                growth_rate,
+                liabilities,
+                cash_balance,
+                loan_options
+            )
+
+            # Go over all the tables in result.
+            for table in result:
+                # Go over each row in the table.
+                for row in table:
+                    # Assign length of the row to a variable to prevent recalculating.
+                    length = len(row)
+                    # Go over the length of the row.
+                    for index in range(length):
+                        data = row[index]
+                        # If the data in the row is float, format it to have 2 decimal places.
+                        if isinstance(data, float):
+                            row[index] = float("{0:.2f}".format(data))
+            # Split the result into each individual tables without the savings potential list.
+            loan_only = result[0][1:]
+            loan_first = result[1][1:]
+            sf_first = result[2][1:]
+            sf_max = result[3][1:]
+            # Obtain the savings potential list.
+            saving_potential_list = []
+            for savings in result[0][0]:
+                if isinstance(savings, float):
+                    saving_potential_list.append(float("{0:.2f}".format(savings)))
+            tables = {
+                'budget_loan_first': loan_first,
+                'budget_loan_only': loan_only,
+                'budget_sf_first': sf_first,
+                'budget_sf_max': sf_max,
+            }
+            instance = {
+                'tables': tables,
+                'saving_potential_list': saving_potential_list,
+            }
+            return JsonResponse({'instance': instance})
+        except Exception as err:
+            error = err.args[0]
+            return JsonResponse({'error': error}, status=400)
diff --git a/blocnote/apps/financialInputs/views.py b/blocnote/apps/financialInputs/views.py
index 35d0b4f588ce8f4b6112cfb924ee7eba71537b72..86193167b84cf64fd104c91ff32a7c5cd5b6284e 100644
--- a/blocnote/apps/financialInputs/views.py
+++ b/blocnote/apps/financialInputs/views.py
@@ -7,7 +7,8 @@ from django.http import JsonResponse
 from django.db import connections
 from django.views import View
 
-from bpfin.lib.back_end_call import monthly_bill, prior_income_statement_table
+from bpfin.back_end_call.back_end_inputs import monthly_bill
+from bpfin.back_end_call.back_end_inputs import form_prior_income_table as prior_income_statement_table
 
 
 from .models import Fund, FinancingOverview, Bills, BillsOverview, CustomerPreference, EstimationAlgorithm
@@ -488,7 +489,7 @@ class BillsOverviewView(View):
             # Fetch all bills from the database.
             raw_bill = get_raw_bill(building_id)
             # Project the charge for utilities whose atleast 12 months bills are available.
-            projected_bills = monthly_bill(raw_bill, analysis_date)
+            projected_bills, manual_input_dict, prior_month_dict = monthly_bill(raw_bill, analysis_date)
             for util in self.utility:
                 # Check if the utility bill is present.
                 if projected_bills[util]:
@@ -888,21 +889,29 @@ class IncomeStatementTable(View):
             annual_bills['electricity'] = {}
             for obj in electricity_objs:
                 annual_bills['electricity'][obj.year] = float(obj.electricity) if obj.electricity else None
+        else:
+            annual_bills['electricity'] = None
 
         if gas_objs:
             annual_bills['gas'] = {}
             for obj in gas_objs:
                 annual_bills['gas'][obj.year] = float(obj.gas) if obj.gas else None
+        else:
+            annual_bills['gas'] = None
 
         if oil_objs:
             annual_bills['oil'] = {}
             for obj in oil_objs:
                 annual_bills['oil'][obj.year] = float(obj.oil) if obj.oil else None
+        else:
+            annual_bills['oil'] = None
 
         if water_objs:
             annual_bills['water'] = {}
             for obj in water_objs:
                 annual_bills['water'][obj.year] = float(obj.water) if obj.water else None
+        else:
+            annual_bills['water'] = None
         return annual_bills
 
     def put(self, request, building_id):
diff --git a/blocnote/apps/landingPage/templates/landingPage/index.html b/blocnote/apps/landingPage/templates/landingPage/index.html
index c1d74dac6fe04761467ce24a8cfd390c69e8bd8e..a08926827f1087c97882189b0e1394546d014634 100644
--- a/blocnote/apps/landingPage/templates/landingPage/index.html
+++ b/blocnote/apps/landingPage/templates/landingPage/index.html
@@ -27,6 +27,12 @@
                         </td>
                         <td>OK</td>
                     </tr>
+                    <tr>
+                        <td>
+                            <a href="{% url 'budget_simulator:index' building_id %}">Budget Simulator</a>
+                        </td>
+                        <td>OK</td>
+                    </tr>
                     {% else %}
                         <tr>
                             <td>
@@ -52,6 +58,18 @@
                                 </ul>
                             </td>
                         </tr>
+                        <tr>
+                            <td>
+                                Budget Simulator
+                            </td>
+                            <td>
+                                <ul>
+                                    {% for item in not_saved_list %}
+                                        <li>Please fill {{ item }}</li>
+                                    {% endfor %}
+                                </ul>
+                            </td>
+                        </tr>
                     {% endif %}
             </tbody>
         </table>
diff --git a/blocnote/apps/preliminaryFinance/views.py b/blocnote/apps/preliminaryFinance/views.py
index 1531d439335858f2558162339e30897de3689d04..2c573976f5dc4726928e1a1647e2931a8b8c6651 100644
--- a/blocnote/apps/preliminaryFinance/views.py
+++ b/blocnote/apps/preliminaryFinance/views.py
@@ -1,22 +1,14 @@
+"""Define the views for the preliminary analysis endpoint."""
 import json
 
 from django.shortcuts import render
 from django.views import View
 from django.http import JsonResponse
 from django.db import connections
-import datetime
 
-from bpfin.financials.financial_lib import organize_bill_overview
-from bpfin.financials.borrower_schedule import packaging_data
-from bpfin.financials.financial_lib import Income_Statement_Table
-from bpfin.financials.cash_balance import cash_balance
-from bpfin.financials.liability import final_liability_dict
-from bpfin.financials.financial_lib import Balance_Sheet_Table
-from bpfin.financials.scenario import Scenario as ScenarioClass
-
-from .models import Scenario, CostEstimation, SavingsEstimation
-from blocnote.apps.financialInputs.models import GrowthRate, IncomeStatement, BillsOverview, FinancingOverview, CashBalance, Liabilities, LoanOptions, CustomerPreference, Bills
-from bpfin.utilbills.bill_backend_call import prior_proj_rough_month
+from blocnote.apps.financialInputs.models import GrowthRate, IncomeStatement, BillsOverview, FinancingOverview
+from blocnote.apps.financialInputs.models import CashBalance, Liabilities, LoanOptions, CustomerPreference, Bills
+from bpfin.back_end_call.back_end_prelim import prelim_scenario
 
 
 class Index(View):
@@ -65,7 +57,7 @@ class Scenarios(View):
     to bpfin to calculate all the outputs to be displayed and pass the information to the frontend.
     """
 
-    def get_liability(self, building_id, analysis_date):
+    def get_liability(self, building_id):
         """Obtain liability information.
 
         Fetch the records containing the liability information from the database.
@@ -100,12 +92,7 @@ class Scenarios(View):
             remaining_term = int(obj.remaining_term)
             input_date = obj.input_date
             liabilities_input[key] = (liability, lender, remaining_term, input_date)
-        liability_dictionary = final_liability_dict(
-            analysis_date['proforma_start'],
-            liabilities_input,
-            analysis_date['proforma_duration']
-            )
-        return liability_dictionary
+        return liabilities_input
 
     def get_cash_balance(self, building_id):
         """Fetch Cash Balance data from Database.
@@ -155,18 +142,19 @@ class Scenarios(View):
             bill_overview: Dictionary containing utility as key and value as a dictionary with key as year and value
                            as annual charge for that utility.
         """
-        objs = BillsOverview.objects.filter(building_id=building_id)
+        bills_overview_objs = BillsOverview.objects.filter(building_id=building_id)
         bill_overview = {}
         electricity = {}
         gas = {}
         oil = {}
         water = {}
-        if objs:
-            for obj in objs:
-                electricity[obj.year] = float(obj.electricity)
-                gas[obj.year] = float(obj.gas)
-                oil[obj.year] = float(obj.oil)
-                water[obj.year] = float(obj.water)
+        if bills_overview_objs:
+            for obj in bills_overview_objs:
+                electricity[obj.year] = float(obj.electricity) if obj.electricity else None
+                gas[obj.year] = float(obj.gas) if obj.gas else None
+                oil[obj.year] = float(obj.oil) if obj.oil else None
+                water[obj.year] = float(obj.water) if obj.water else None
+            obj = bills_overview_objs[0]
             bill_overview = {
                 'electricity': [electricity, not obj.electricity_is_user_input],
                 'gas': [gas, not obj.gas_is_user_input],
@@ -273,7 +261,7 @@ class Scenarios(View):
         }
         return customer_preference
 
-    def get_prior_month_bill(self, building_id, analysis_date):
+    def get_prior_month_bill(self, building_id):
         """Get the prior bills on a monthly basis than annual.
 
         Args:
@@ -289,7 +277,7 @@ class Scenarios(View):
             'oil',
             'water',
         ]
-        prior_month_bill = {}
+        raw_bill_table = {}
         for utility_type in utilities:
             bills_object = Bills.objects.filter(
                 building_id=building_id,
@@ -309,9 +297,53 @@ class Scenarios(View):
                     raw_bill['date_to'].append(bill.date_to)
                     raw_bill['usage'].append(float(bill.usage))
                     raw_bill['charge'].append(float(bill.charge))
-                month_rough = prior_proj_rough_month(raw_bill, analysis_date)
-                prior_month_bill[utility_type] = month_rough
-        return prior_month_bill
+            raw_bill_table[utility_type] = raw_bill
+        return raw_bill_table
+
+    def get_annual_bills(self, building_id):
+        """Fetch manually input annual values from the database."""
+        annual_bills = {}
+
+        electricity_objs = BillsOverview.objects.filter(
+            building_id=building_id,
+            electricity_is_user_input=True,
+        )
+
+        gas_objs = BillsOverview.objects.filter(
+            building_id=building_id,
+            gas_is_user_input=True,
+        )
+
+        oil_objs = BillsOverview.objects.filter(
+            building_id=building_id,
+            oil_is_user_input=True,
+        )
+
+        water_objs = BillsOverview.objects.filter(
+            building_id=building_id,
+            water_is_user_input=True,
+        )
+
+        if electricity_objs:
+            annual_bills['electricity'] = {}
+            for obj in electricity_objs:
+                annual_bills['electricity'][obj.year] = float(obj.electricity) if obj.electricity else None
+
+        if gas_objs:
+            annual_bills['gas'] = {}
+            for obj in gas_objs:
+                annual_bills['gas'][obj.year] = float(obj.gas) if obj.gas else None
+
+        if oil_objs:
+            annual_bills['oil'] = {}
+            for obj in oil_objs:
+                annual_bills['oil'][obj.year] = float(obj.oil) if obj.oil else None
+
+        if water_objs:
+            annual_bills['water'] = {}
+            for obj in water_objs:
+                annual_bills['water'][obj.year] = float(obj.water) if obj.water else None
+        return annual_bills
 
     def put(self, request, building_id):
         """Handle HTTP PUT request.
@@ -328,45 +360,24 @@ class Scenarios(View):
         growth_rate = self.get_growth_rate(building_id)
         raw_income_statement = self.get_raw_income_statement(building_id)
         analysis_date = self.get_analysis_date(building_id)
-        bill_overview = self.get_bill_overview(building_id)
-        bill_overview_organized = organize_bill_overview(bill_overview, analysis_date)
         cash_balance_input_dict = self.get_cash_balance(building_id)
-        cash_balance_input = cash_balance(analysis_date, cash_balance_input_dict)
-
-        prior_income_statement_table = Income_Statement_Table(
-            raw_income_statement,
-            bill_overview_organized
-        )
-        prior_income_statement_table.project(
-            growth_rate,
-            analysis_date,
-            bill_overview_organized
-        )
-
-        liability_dictionary = self.get_liability(building_id, analysis_date)
-        noi_dictionary = prior_income_statement_table.get_noi_dict()
+        liability_dictionary = self.get_liability(building_id)
+        loan_options = self.get_loan_input(building_id)
+        commission_date = self.get_commission_date(building_id)
+        customer_preference = self.get_customer_preference(building_id)
+        prior_month_bill = self.get_prior_month_bill(building_id)
+        annual_bills = self.get_annual_bills(building_id)
 
-        raw_balance_sheet = {
-            'cash': cash_balance_input,
-            'other_debt_service': liability_dictionary,
-            'net_income': noi_dictionary,
-        }
-        prior_balance_sheet_table = Balance_Sheet_Table(raw_balance_sheet)
-        prior_balance_sheet_table.project_balance_sheet(
-            analysis_date,
-            liability_dictionary,
-            noi_dictionary,
-        )
+        # Extract data from the PUT request body.
+        # Calculate the total cost of items.
         costs = []
         cost_list = put['cost']
         for record in cost_list:
             costs.append(float(record['cost']))
         total_cost = sum(costs)
-        loan_options = self.get_loan_input(building_id)
-        commission_date = self.get_commission_date(building_id)
         savings_percent = self.get_savings_percent(put['savings'])
-        customer_preference = self.get_customer_preference(building_id)
-        prior_month_bill = self.get_prior_month_bill(building_id, analysis_date)
+
+        # The following 2 variables are hard coded for now. They will be updated at a later point.
         full_saving_dict = {
             'electricity': None,
             'gas': None,
@@ -378,31 +389,28 @@ class Scenarios(View):
             'req_cash_dscr': 1.15,
             'req_saving_dscr': 1.10
         }
-        # The scenario class would store relevant data and perform preliminary analysis.
-        scenario = ScenarioClass(
+
+        # prelim_scenario returns the project economics which are a set of values determining the financial health
+        # of the building and graph dictionary which contains total expense, loan repayment and total net savings.
+        # The graph_dict will be plotted as a stacked bar graph in the frontend to visually see if savings can cover
+        # loan repayment and if there will be any savings left are loan repayment.
+        graph_dict, project_economics_overview = prelim_scenario(
+            prior_month_bill,
+            annual_bills,
+            raw_income_statement,
+            growth_rate,
+            liability_dictionary,
+            cash_balance_input_dict,
+            loan_options,
             analysis_date,
             commission_date,
             total_cost,
-            bill_overview,
-            bill_overview_organized,
-            liability_dictionary,
-            prior_income_statement_table,
-            prior_balance_sheet_table,
-            loan_options,
-        )
-
-        # Perform preliminary analysis
-        scenario.prelim_anlaysis(
-            prior_month_bill,
             savings_percent,
             full_saving_dict,
-            growth_rate,
             req_dscr,
-            customer_preference
+            customer_preference,
         )
 
-        # graph_dict contains the data for the stacked bar graph.
-        graph_dict = scenario.get_graph_dict()
         energy_expense = graph_dict['energy_expenses']
         total_loan = graph_dict['total_loan']
         net_savings = graph_dict['net_savings']
@@ -415,9 +423,6 @@ class Scenarios(View):
             energy_expense_list.append(energy_expense[year])
             total_loan_list.append(total_loan[year])
             net_savings_list.append(net_savings[year])
-
-        # economics_overview contains the information for the summary table on frontend.
-        project_economics_overview = scenario.get_economics()
         economics_overview = {
             'Estimated Cost': float("{0:.2f}".format(project_economics_overview['estimated_cost'])),
             'Overall Saving': float("{0:.2f}".format(project_economics_overview['overall_saving'])),
diff --git a/blocnote/settings.py b/blocnote/settings.py
index 44905a660b1c9a81e2f94be4884139bbbabff605..bed7ab25edab224514f93c8fd5b2fa280d51b3a0 100644
--- a/blocnote/settings.py
+++ b/blocnote/settings.py
@@ -43,7 +43,9 @@ INSTALLED_APPS = [
     'django.contrib.staticfiles',
     'blocnote.apps.financialInputs',
     'blocnote.apps.preliminaryFinance',
+    'blocnote.apps.budgetSimulator',
     'blocnote.apps.landingPage',
+    'django_nose',
 ]
 
 MIDDLEWARE = [
@@ -74,6 +76,15 @@ TEMPLATES = [
     },
 ]
 
+# Use nose to run all tests
+TEST_RUNNER = 'django_nose.NoseTestSuiteRunner'
+
+# Tell nose to measure coverage on the 'foo' and 'bar' apps
+NOSE_ARGS = [
+    '--with-coverage',
+    '--cover-package=blocnote.apps.budgetSimulator',
+]
+
 WSGI_APPLICATION = 'blocnote.wsgi.application'
 
 
diff --git a/blocnote/urls.py b/blocnote/urls.py
index 965a5959245db7cde783620aa24837056a858a8e..ed5ad6615052d624f771f5f25a088873c05b2a9f 100644
--- a/blocnote/urls.py
+++ b/blocnote/urls.py
@@ -20,6 +20,7 @@ urlpatterns = [
     url('', admin.site.urls),
     url(r'^buildings/(?P<building_id>[0-9]+)/preliminary-finance/', include('blocnote.apps.preliminaryFinance.urls')),
     url(r'^buildings/(?P<building_id>[0-9]+)/financial-inputs/', include('blocnote.apps.financialInputs.urls')),
+    url(r'^buildings/(?P<building_id>[0-9]+)/budget/', include('blocnote.apps.budgetSimulator.urls')),
     url(r'^buildings/(?P<building_id>[0-9]+)/', include('blocnote.apps.landingPage.urls')),
     url(r'^admin/', admin.site.urls),
 ]
diff --git a/package.json b/package.json
new file mode 100644
index 0000000000000000000000000000000000000000..8b9f8eb49067988adb2297469577423a960a2eb6
--- /dev/null
+++ b/package.json
@@ -0,0 +1,27 @@
+{
+  "name": "blocnote",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/Blocp/blocnote.git"
+  },
+  "author": "",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/Blocp/blocnote/issues"
+  },
+  "homepage": "https://github.com/Blocp/blocnote#readme",
+  "dependencies": {},
+  "devDependencies": {
+    "eslint": "^3.19.0",
+    "eslint-config-airbnb": "^15.0.1",
+    "eslint-plugin-import": "^2.3.0",
+    "eslint-plugin-jsx-a11y": "^5.0.3",
+    "eslint-plugin-react": "^7.0.1"
+  }
+}
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 8d2fff941f20cf49dd28e6bced3b6400822560d0..9fa50a173a9e70f8c012cd5361fec258c6f7e119 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,7 +1,8 @@
 -r requirements.txt
-autopep8==1.3
-prospector==0.12.4
 pycodestyle==2.0.0
 pydocstyle==1.0.0
 pylint>=1.5.6
 pylint-django>=0.7.2
+yapf>=0.16.1
+django-nose
+coverage
diff --git a/requirements.txt b/requirements.txt
index 511376951a0995d92f4a6d0beeea76d7d5390ac6..c7936fa20b82b7d3432c28458c000833b2b70403 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 Django==1.10.6
 psycopg2==2.7
 python-decouple==3.0
-git+ssh://git@github.com/Blocp/bpfin.git@v0.1.2
+git+ssh://git@github.com/Blocp/bpfin.git@v0.1.3