diff --git a/policyengine_us/parameters/gov/irs/deductions/itemized/interest/mortgage/cap.yaml b/policyengine_us/parameters/gov/irs/deductions/itemized/interest/mortgage/cap.yaml
index 4b8285d4e97..93db6a454a2 100644
--- a/policyengine_us/parameters/gov/irs/deductions/itemized/interest/mortgage/cap.yaml
+++ b/policyengine_us/parameters/gov/irs/deductions/itemized/interest/mortgage/cap.yaml
@@ -1,26 +1,18 @@
 description: IRS limits the total home mortgage interest deduction to this amount, based on filing status.
-# Debt incurred before December 16, 2017
 SINGLE:
   2017-12-16: 1_000_000
-JOINT:
-  2017-12-16: 1_000_000
-SEPARATE:
-  2017-12-16: 500_000
-HEAD_OF_HOUSEHOLD:
-  2017-12-16: 1_000_000
-SURVIVING_SPOUSE:
-  2017-12-16: 1_000_000
-
-# Debt incurred after December 16, 2017
-SINGLE:
   2018-01-01: 750_000
 JOINT:
+  2017-12-16: 1_000_000
   2018-01-01: 750_000
 SEPARATE:
+  2017-12-16: 500_000
   2018-01-01: 375_000
 HEAD_OF_HOUSEHOLD:
+  2017-12-16: 1_000_000
   2018-01-01: 750_000
 SURVIVING_SPOUSE:
+  2017-12-16: 1_000_000
   2018-01-01: 750_000
 metadata:
   breakdown: filing_status