MaxGhenis · Oct 20, 2026
diff --git a/changelog.d/ct-covered-connecticut-exact-fpl-ratio.fixed.md b/changelog.d/ct-covered-connecticut-exact-fpl-ratio.fixed.md
@@ -0,0 +1 @@
+Decide Covered Connecticut eligibility on the exact ratio of ACA MAGI to the prior-year poverty guideline instead of the truncated `aca_magi_fraction`, so incomes from 175.003% to 175.994% of the poverty line are no longer eligible (C.G.S. § 19a-754c(b)(1)(C)(iv): "household income up to one hundred seventy-five per cent of the federal poverty level"; DSS applies it "up to an[d] including 175%").
diff --git a/...s/tests/policy/baseline/gov/states/ct/dss/covered_connecticut/ct_covered_connecticut.yaml b/...s/tests/policy/baseline/gov/states/ct/dss/covered_connecticut/ct_covered_connecticut.yaml
@@ -5,8 +5,9 @@
 #   ct_covered_connecticut = max(0, slcsp_annual - aca_ptc)
 # The amount variable is gated by defined_for = "ct_covered_connecticut_eligible",
 # so any tax unit failing the three eligibility gates (in_effect, APTC, income)
-# or the StateCode.CT gate returns 0. slcsp, aca_ptc, aca_magi_fraction and
-# is_aca_ptc_eligible are supplied directly so each residual is hand-verifiable.
+# or the StateCode.CT gate returns 0. slcsp, aca_ptc, is_aca_ptc_eligible and
+# aca_magi against a $10,000 prior-year tax_unit_fpg are supplied directly so
+# each residual is hand-verifiable.
 
 # ---- Eligible, small residual near the Medicaid floor (~150% FPL) ----
 - name: Case 1, 150% FPL eligible residual of 500.
@@ -21,7 +22,9 @@
     tax_units:
       tax_unit:
         members: [person1]
-        aca_magi_fraction: 1.50
+        aca_magi: 15_000
+        tax_unit_fpg:
+          2025: 10_000
         slcsp: 8_000
         aca_ptc: 7_500
     households:
@@ -43,7 +46,9 @@
     tax_units:
       tax_unit:
         members: [person1]
-        aca_magi_fraction: 1.60
+        aca_magi: 16_000
+        tax_unit_fpg:
+          2025: 10_000
         slcsp: 9_000
         aca_ptc: 8_700
     households:
@@ -67,7 +72,9 @@
     tax_units:
       tax_unit:
         members: [person1]
-        aca_magi_fraction: 1.75
+        aca_magi: 17_500
+        tax_unit_fpg:
+          2025: 10_000
         slcsp: 10_000
         aca_ptc: 8_800
     households:
@@ -90,7 +97,9 @@
     tax_units:
       tax_unit:
         members: [person1]
-        aca_magi_fraction: 1.50
+        aca_magi: 15_000
+        tax_unit_fpg:
+          2025: 10_000
         slcsp: 8_000
         aca_ptc: 8_000
     households:
@@ -113,7 +122,9 @@
     tax_units:
       tax_unit:
         members: [person1]
-        aca_magi_fraction: 1.76
+        aca_magi: 17_600
+        tax_unit_fpg:
+          2025: 10_000
         slcsp: 10_000
         aca_ptc: 9_000
     households:
@@ -135,7 +146,9 @@
     tax_units:
       tax_unit:
         members: [person1]
-        aca_magi_fraction: 1.50
+        aca_magi: 15_000
+        tax_unit_fpg:
+          2025: 10_000
         slcsp: 8_000
         aca_ptc: 7_000
     households:
@@ -158,7 +171,9 @@
     tax_units:
       tax_unit:
         members: [person1]
-        aca_magi_fraction: 1.50
+        aca_magi: 15_000
+        tax_unit_fpg:
+          2025: 10_000
         slcsp: 8_000
         aca_ptc: 7_000
     households:
@@ -180,7 +195,9 @@
     tax_units:
       tax_unit:
         members: [person1]
-        aca_magi_fraction: 1.50
+        aca_magi: 15_000
+        tax_unit_fpg:
+          2024: 10_000
         slcsp: 8_000
         aca_ptc: 7_000
     households:
@@ -208,7 +225,9 @@
     tax_units:
       tax_unit:
         members: [person1, person2, person3]
-        aca_magi_fraction: 1.60
+        aca_magi: 16_000
+        tax_unit_fpg:
+          2025: 10_000
         slcsp: 20_000
         aca_ptc: 18_500
     households:
@@ -231,7 +250,9 @@
     tax_units:
       tax_unit:
         members: [person1]
-        aca_magi_fraction: 1.50
+        aca_magi: 15_000
+        tax_unit_fpg:
+          2025: 10_000
         slcsp: 0
         aca_ptc: 0
     households:
@@ -255,7 +276,9 @@
     tax_units:
       tax_unit:
         members: [person1]
-        aca_magi_fraction: 1.50
+        aca_magi: 15_000
+        tax_unit_fpg:
+          2025: 10_000
         slcsp: 8_000
         aca_ptc: 9_000
     households:
@@ -280,7 +303,9 @@
     tax_units:
       tax_unit:
         members: [person1]
-        aca_magi_fraction: 1.38
+        aca_magi: 13_800
+        tax_unit_fpg:
+          2025: 10_000
         slcsp: 8_500
         aca_ptc: 8_300
     households:
@@ -312,7 +337,9 @@
     tax_units:
       tax_unit:
         members: [person1, person2, person3, person4, person5]
-        aca_magi_fraction: 1.50
+        aca_magi: 15_000
+        tax_unit_fpg:
+          2025: 10_000
         slcsp: 32_000
         aca_ptc: 27_000
     households:
@@ -336,7 +363,9 @@
     tax_units:
       tax_unit:
         members: [person1]
-        aca_magi_fraction: 1.50
+        aca_magi: 15_000
+        tax_unit_fpg:
+          2026: 10_000
         slcsp: 8_000
         aca_ptc: 7_500
     households:
@@ -362,7 +391,9 @@
     tax_units:
       tax_unit:
         members: [person1]
-        aca_magi_fraction: 1.38
+        aca_magi: 13_800
+        tax_unit_fpg:
+          2025: 10_000
         slcsp: 8_000
         aca_ptc: 7_500
     households:
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		Decide Covered Connecticut eligibility on the exact ratio of ACA MAGI to the prior-year poverty guideline instead of the truncated `aca_magi_fraction`, so incomes from 175.003% to 175.994% of the poverty line are no longer eligible (C.G.S. § 19a-754c(b)(1)(C)(iv): "household income up to one hundred seventy-five per cent of the federal poverty level"; DSS applies it "up to an[d] including 175%").