diff --git a/changelog.d/fixed/9008.md b/changelog.d/fixed/9008.md
new file mode 100644
index 00000000000..cead5ebcbb3
--- /dev/null
+++ b/changelog.d/fixed/9008.md
@@ -0,0 +1 @@
+- Fixed the Connecticut pension and annuity subtraction to not apply the 2024 phase-out rates in 2019-2023, when the subtraction ended at the AGI cliff.
diff --git a/policyengine_us/parameters/gov/states/ct/tax/income/subtractions/pensions_or_annuity/joint.yaml b/policyengine_us/parameters/gov/states/ct/tax/income/subtractions/pensions_or_annuity/joint.yaml
index 33a50efe194..d5a11485515 100644
--- a/policyengine_us/parameters/gov/states/ct/tax/income/subtractions/pensions_or_annuity/joint.yaml
+++ b/policyengine_us/parameters/gov/states/ct/tax/income/subtractions/pensions_or_annuity/joint.yaml
@@ -33,32 +33,40 @@ brackets:
   - threshold:
       2024-01-01: 105_000
     amount:
+      2019-01-01: 0
       2024-01-01: 0.7
   - threshold:
       2024-01-01: 110_000
     amount:
+      2019-01-01: 0
       2024-01-01: 0.55
   - threshold:
       2024-01-01: 115_000
     amount:
+      2019-01-01: 0
       2024-01-01: 0.4
   - threshold:
       2024-01-01: 120_000
     amount:
+      2019-01-01: 0
       2024-01-01: 0.25
   - threshold:
       2024-01-01: 125_000
     amount:
+      2019-01-01: 0
       2024-01-01: 0.1
   - threshold:
       2024-01-01: 130_000
     amount:
+      2019-01-01: 0
       2024-01-01: 0.05
   - threshold:
       2024-01-01: 140_000
     amount:
+      2019-01-01: 0
       2024-01-01: 0.025
   - threshold:
       2024-01-01: 150_000
     amount:
+      2019-01-01: 0
       2024-01-01: 0
diff --git a/policyengine_us/parameters/gov/states/ct/tax/income/subtractions/pensions_or_annuity/non_joint.yaml b/policyengine_us/parameters/gov/states/ct/tax/income/subtractions/pensions_or_annuity/non_joint.yaml
index 8bdf8f1446d..b28fbe31fd0 100644
--- a/policyengine_us/parameters/gov/states/ct/tax/income/subtractions/pensions_or_annuity/non_joint.yaml
+++ b/policyengine_us/parameters/gov/states/ct/tax/income/subtractions/pensions_or_annuity/non_joint.yaml
@@ -33,32 +33,40 @@ brackets:
   - threshold:
       2024-01-01: 77_500
     amount:
+      2019-01-01: 0
       2024-01-01: 0.7
   - threshold:
       2024-01-01: 80_000
     amount:
+      2019-01-01: 0
       2024-01-01: 0.55
   - threshold:
       2024-01-01: 82_500
     amount:
+      2019-01-01: 0
       2024-01-01: 0.4
   - threshold:
       2024-01-01: 85_000
     amount:
+      2019-01-01: 0
       2024-01-01: 0.25
   - threshold:
       2024-01-01: 87_500
     amount:
+      2019-01-01: 0
       2024-01-01: 0.1
   - threshold:
       2024-01-01: 90_000
     amount:
+      2019-01-01: 0
       2024-01-01: 0.05
   - threshold:
       2024-01-01: 95_000
     amount:
+      2019-01-01: 0
       2024-01-01: 0.025
   - threshold:
       2024-01-01: 100_000
     amount:
+      2019-01-01: 0
       2024-01-01: 0
diff --git a/policyengine_us/tests/policy/baseline/gov/states/ct/tax/income/integration.yaml b/policyengine_us/tests/policy/baseline/gov/states/ct/tax/income/integration.yaml
index 84b9e738aa8..e783648bcb3 100644
--- a/policyengine_us/tests/policy/baseline/gov/states/ct/tax/income/integration.yaml
+++ b/policyengine_us/tests/policy/baseline/gov/states/ct/tax/income/integration.yaml
@@ -103,3 +103,31 @@
   output:
     income_tax: -733
     ct_income_tax: 2_415
+- name: CT 2021 joint filer with federal AGI above the 100k cliff gets no pension and annuity subtraction (taxsim 1077)
+  period: 2021
+  absolute_error_margin: 2
+  input:
+    people:
+      head:
+        age: 71
+        taxable_private_pension_income: 46_772.66
+        taxable_interest_income: 955.58
+        social_security_retirement: 10_204.63
+      spouse:
+        age: 69
+        taxable_private_pension_income: 46_772.66
+        taxable_interest_income: 955.58
+        social_security_retirement: 10_204.63
+    tax_units:
+      tax_unit:
+        members: [head, spouse]
+    households:
+      household:
+        members: [head, spouse]
+        state_code: CT
+  output:
+    adjusted_gross_income: 112_804
+    ct_pension_annuity_subtraction: 0
+    ct_social_security_benefit_adjustment: 12_246
+    ct_agi: 100_559
+    ct_income_tax: 4_671