diff --git a/bpfin/back_end_call/back_end_inputs.py b/bpfin/back_end_call/back_end_inputs.py
index 65a7f4a8963b6f49757e3a51d107a007d163e07b..eb99c69d6913f63315b761dc43b60f0162a79884 100644
--- a/bpfin/back_end_call/back_end_inputs.py
+++ b/bpfin/back_end_call/back_end_inputs.py
@@ -68,8 +68,6 @@ def form_annual_bill_table(raw_monthly_bill_table, raw_annual_bill_table, analys
             'oil': same,
             'water': same}
         bill_overview_instance = {
-            "instance":
-            {
                 "electric":{"2012": 44497.03, "2013": 45283.79, ... "2036": 70045.62},
                 "gas":{"2012": 10847.97, "2013": 11045.45, ... "2036": 17077.7},
                 "oil":{"2012": null, ... "2036": null},
@@ -80,7 +78,6 @@ def form_annual_bill_table(raw_monthly_bill_table, raw_annual_bill_table, analys
                 "water_user": 'Annual Estimate',
                 "total_annual_charge": {"2012": 55345.0, "2013": 56329.240000000005, ... "2036": 87123.31999999999}
             }
-        }
 
     To Do: from utilbills.bill.py merge form_prior_month_bill(), and delete that one
             * this work is done. need all units test and then can delete that
@@ -122,7 +119,7 @@ def form_annual_bill_table(raw_monthly_bill_table, raw_annual_bill_table, analys
     # assign total charge to instance. UI display: "Total Energy Expense"
     instance["total_annual_charge"] = sum_energy_opex(bill_overview_dict)[0]
 
-    bill_overview_instance = {"instance":instance}
+    bill_overview_instance = instance
     # print('\ninstance = ', bill_overview_instance)
 
     return bill_overview_dict, manual_input_dict, prior_month_bill_dict, bill_overview_instance
@@ -195,7 +192,7 @@ def form_prior_income_table(
 # from bpfin.tests.testdata import feature_data as db
 
 # pp = pprint.PrettyPrinter(width=120, indent=4, compact=True)
-# pp.pprint(form_annual_bill_table(db.raw_monthly_bill_table, db.raw_annual_bill_table, db.analysis_date)[1])
+# pp.pprint(form_annual_bill_table(db.raw_monthly_bill_table, db.raw_annual_bill_table, db.analysis_date)[-1])
 
 # print('\nannual_bill =', form_annual_bill_table(db.raw_monthly_bill_table, db.raw_annual_bill_table, db.analysis_date)[-1])
 
diff --git a/bpfin/lib/other.py b/bpfin/lib/other.py
index a54ef55a4748c04423614c9de09f63bd6f365ecc..d2123ee5c0cb3a7b14c9661d67f9be16101e30ab 100644
--- a/bpfin/lib/other.py
+++ b/bpfin/lib/other.py
@@ -353,6 +353,11 @@ def date_diff(startdate, enddate):
 def convert_timestamp_date(list1):
     return list(map(lambda x: datetime.date(x.year, x.month, x.day), list1))
 
+def convert_timestamp_year(input_dict):
+    dict1 = copy.deepcopy(input_dict)
+    for key in dict1:
+        dict1[datetime.date(year=int(key), month=1, day=1).year] = dict1.pop(key)
+    return dict1
 
 # def cal_latest_day(terms_list):
 #     latestday = datetime.date(1900, 1, 1)
diff --git a/bpfin/utilbills/bill.py b/bpfin/utilbills/bill.py
index d86df376db3f6ff1758fc9a78331e81ceb49e98d..77141f0b7fd3b96fb4bbd59b092e09b097554da5 100644
--- a/bpfin/utilbills/bill.py
+++ b/bpfin/utilbills/bill.py
@@ -5,7 +5,7 @@ from bpfin.utilbills.bill_lib import annualizing_projection, form_bill_calendar,
 from bpfin.utilbills.bill_month_normalize_rough import bill_month_normalize_rough
 from bpfin.utilbills.bill_prior_proj_rough import bill_prior_proj_rough
 from bpfin.utilbills.inflation_sample_data import inflation_coeff_dict
-from bpfin.lib.other import average_list_with_none, form_date_calendar
+from bpfin.lib.other import average_list_with_none, form_date_calendar, convert_timestamp_year
 from bpfin.lib.other import UTILITY_TYPE_LIST
 # from bpfin.lib.other import average_nonzero_list
 
@@ -53,8 +53,8 @@ def estimate_annual_bill(raw_annual_bill, analysis_date):
         annual_bill_dict = {}
     else:
         average_charge = average_list_with_none(raw_annual_bill.values())
-        # average_charge = average_nonzero_list(raw_annual_bill.values())
         annual_bill_dict = copy.deepcopy(raw_annual_bill)
+        annual_bill_dict = convert_timestamp_year(annual_bill_dict)
 
     for year in proforma_year:
         if year not in annual_bill_dict: