Merge pull request #5487 from PolicyEngine/dc_ptc_fix

Apply 5 year forward check to the DC PTC reform

changelog_entry.yaml

@@ -0,0 +1,4 @@
+- bump: patch
+  changes:
+    fixed:
+    - DC property tax credit reform 5 year forward check.

policyengine_us/reforms/states/dc/property_tax/dc_property_tax_reform.py

@@ -1,4 +1,5 @@
 from policyengine_us.model_api import *
+from policyengine_core.periods import period as period_
 
 
 def create_dc_property_tax_credit() -> Reform:
@@ -101,9 +102,18 @@ def create_dc_property_tax_credit_reform(
     if bypass:
         return create_dc_property_tax_credit()
 
-    p = parameters(period).gov.contrib.states.dc.property_tax
+    p = parameters.gov.contrib.states.dc.property_tax
 
-    if p.in_effect:
+    reform_active = False
+    current_period = period_(period)
+
+    for i in range(5):
+        if p(current_period).in_effect:
+            reform_active = True
+            break
+        current_period = current_period.offset(1, "year")
+
+    if reform_active:
         return create_dc_property_tax_credit()
     else:
         return None