PolicyEngine · PavelMakarchuk · Feb 1, 2026 · Dec 29, 2025 · Dec 29, 2025 · Dec 29, 2025
diff --git a/changelog_entry.yaml b/changelog_entry.yaml
@@ -0,0 +1,4 @@
+- bump: patch
+  changes:
+    changed:
+      - Update Colorado income tax parameters for tax year 2025.
diff --git a/...ne_us/parameters/gov/states/co/tax/income/additions/federal_deductions/agi_threshold.yaml b/...ne_us/parameters/gov/states/co/tax/income/additions/federal_deductions/agi_threshold.yaml
@@ -15,6 +15,8 @@ metadata:
     href: https://tax.colorado.gov/sites/tax/files/documents/DR0104_book_2024.pdf#page=9
   - title: Individual Income Tax Guide - Part 3 Additions to Taxable Income - Federal itemized or standard deductions
     href: https://tax.colorado.gov/individual-income-tax-guide
+  - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Additions Line 4
+    href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=9
 values:
   2022-01-01: 400_000
   2023-01-01: 300_000
diff --git a/...engine_us/parameters/gov/states/co/tax/income/additions/federal_deductions/exemption.yaml b/...engine_us/parameters/gov/states/co/tax/income/additions/federal_deductions/exemption.yaml
@@ -15,6 +15,8 @@ metadata:
     href: https://tax.colorado.gov/sites/tax/files/documents/DR0104_book_2024.pdf#page=9
   - title: Individual Income Tax Guide - Part 3 Additions to Taxable Income - Federal itemized or standard deductions
     href: https://tax.colorado.gov/individual-income-tax-guide
+  - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Additions Line 4
+    href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=9
   breakdown:
     - filing_status
 JOINT:

diff --git a/...ne_us/parameters/gov/states/co/tax/income/additions/federal_deductions/itemized_only.yaml b/...ne_us/parameters/gov/states/co/tax/income/additions/federal_deductions/itemized_only.yaml
@@ -15,6 +15,8 @@ metadata:
     href: https://tax.colorado.gov/sites/tax/files/documents/DR0104_book_2024.pdf#page=9
   - title: Individual Income Tax Guide - Part 3 Additions to Taxable Income - Federal itemized or standard deductions
     href: https://tax.colorado.gov/individual-income-tax-guide
+  - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Additions Line 4
+    href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=9
 values:
   2022-01-01: true
   2023-01-01: false
diff --git a/...gov/states/co/tax/income/additions/qualified_business_income_deduction/agi_threshold.yaml b/...gov/states/co/tax/income/additions/qualified_business_income_deduction/agi_threshold.yaml
@@ -14,8 +14,10 @@ metadata:
     href: https://tax.colorado.gov/sites/tax/files/documents/Book0104_2023.pdf#page=5
   - title: 2024 Colorado Individual Income Tax Filing Guide, 104 Book - Additions - Line 3
     href: https://tax.colorado.gov/sites/tax/files/documents/DR0104_book_2024.pdf#page=9
-  - title: Individual Income Tax Guide - Part 3 Additions to Taxable Income 
+  - title: Individual Income Tax Guide - Part 3 Additions to Taxable Income
     href: https://tax.colorado.gov/individual-income-tax-guide
+  - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Additions Line 3
+    href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=9
   breakdown:
     - filing_status
 

diff --git a/policyengine_us/parameters/gov/states/co/tax/income/credits/care_worker/amount/joint.yaml b/policyengine_us/parameters/gov/states/co/tax/income/credits/care_worker/amount/joint.yaml
@@ -8,3 +8,5 @@ metadata:
   reference:
     - title: Colorado Revised Statutes Section 39-22-566 (3)(a)
       href: https://law.justia.com/codes/colorado/title-39/specific-taxes/income-tax/article-22/part-5/section-39-22-566/
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Line 10
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=30
diff --git a/...cyengine_us/parameters/gov/states/co/tax/income/credits/care_worker/amount/non_joint.yaml b/...cyengine_us/parameters/gov/states/co/tax/income/credits/care_worker/amount/non_joint.yaml
@@ -8,3 +8,5 @@ metadata:
   reference:
     - title: Colorado Revised Statutes Section 39-22-566 (3)(a)
       href: https://law.justia.com/codes/colorado/title-39/specific-taxes/income-tax/article-22/part-5/section-39-22-566/
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Line 10
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=30
diff --git a/...engine_us/parameters/gov/states/co/tax/income/credits/care_worker/income_limit/joint.yaml b/...engine_us/parameters/gov/states/co/tax/income/credits/care_worker/income_limit/joint.yaml
@@ -8,3 +8,5 @@ metadata:
   reference:
     - title: Colorado Revised Statutes Section 39-22-566 (3)(b)(I)(B)
       href: https://law.justia.com/codes/colorado/title-39/specific-taxes/income-tax/article-22/part-5/section-39-22-566/
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Line 10
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=30
diff --git a/...ne_us/parameters/gov/states/co/tax/income/credits/care_worker/income_limit/non_joint.yaml b/...ne_us/parameters/gov/states/co/tax/income/credits/care_worker/income_limit/non_joint.yaml
@@ -8,3 +8,5 @@ metadata:
   reference:
     - title: Colorado Revised Statutes Section 39-22-566 (3)(b)(I)(A)
       href: https://law.justia.com/codes/colorado/title-39/specific-taxes/income-tax/article-22/part-5/section-39-22-566/
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Line 10
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=30
diff --git a/...e_us/parameters/gov/states/co/tax/income/credits/cdcc/low_income/child_age_threshold.yaml b/...e_us/parameters/gov/states/co/tax/income/credits/cdcc/low_income/child_age_threshold.yaml
@@ -13,6 +13,8 @@ metadata:
       href: https://tax.colorado.gov/sites/tax/files/documents/Book0104_2023.pdf#page=48
     - title: 2024 Colorado Individual Income Tax Filing Guide, 104 Book, page 67, Eligible, 4, b
       href: https://tax.colorado.gov/sites/tax/files/documents/DR0104_book_2024.pdf#page=67
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, page 67, Eligible, 4, b
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=67
 
   unit: year
   period: year

diff --git a/...us/parameters/gov/states/co/tax/income/credits/cdcc/low_income/federal_agi_threshold.yaml b/...us/parameters/gov/states/co/tax/income/credits/cdcc/low_income/federal_agi_threshold.yaml
@@ -13,6 +13,8 @@ metadata:
       href: https://tax.colorado.gov/sites/tax/files/documents/Book0104_2023.pdf#page=48
     - title: 2024 Colorado Individual Income Tax Filing Guide, 104 Book, Part IV
       href: https://tax.colorado.gov/sites/tax/files/documents/DR0104_book_2024.pdf#page=68
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Part IV
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=68
 
   unit: currency-USD
   period: year

diff --git a/policyengine_us/parameters/gov/states/co/tax/income/credits/cdcc/low_income/max_amount.yaml b/policyengine_us/parameters/gov/states/co/tax/income/credits/cdcc/low_income/max_amount.yaml
@@ -16,6 +16,8 @@ metadata:
       href: https://tax.colorado.gov/sites/tax/files/documents/Book0104_2023.pdf#page=50
     - title: 2024 Colorado Individual Income Tax Filing Guide, 104 Book, Part IV Table A
       href: https://tax.colorado.gov/sites/tax/files/documents/DR0104_book_2024.pdf#page=70
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Part IV Table A
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=70
 brackets:
   - threshold:
       2018-01-01: 0

diff --git a/policyengine_us/parameters/gov/states/co/tax/income/credits/cdcc/low_income/rate.yaml b/policyengine_us/parameters/gov/states/co/tax/income/credits/cdcc/low_income/rate.yaml
@@ -14,5 +14,7 @@ metadata:
       href: https://tax.colorado.gov/sites/tax/files/documents/Book0104_2023.pdf#page=50
     - title: 2024 Colorado Individual Income Tax Filing Guide, 104 Book, Part IV Line 10
       href: https://tax.colorado.gov/sites/tax/files/documents/DR0104_book_2024.pdf#page=70
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Part IV Line 10
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=70
 values:
   2018-01-01: 0.25
diff --git a/policyengine_us/parameters/gov/states/co/tax/income/credits/cdcc/match.yaml b/policyengine_us/parameters/gov/states/co/tax/income/credits/cdcc/match.yaml
@@ -14,6 +14,8 @@ metadata:
       href: https://tax.colorado.gov/sites/tax/files/documents/Book0104_2023.pdf#page=50
     - title: 2024 Colorado Individual Income Tax Filing Guide, 104 Book, Part III Line 7
       href: https://tax.colorado.gov/sites/tax/files/documents/DR0104_book_2024.pdf#page=70
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Part III Line 7
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=70
 
 brackets:
   - threshold:

diff --git a/policyengine_us/parameters/gov/states/co/tax/income/credits/ctc/age_threshold.yaml b/policyengine_us/parameters/gov/states/co/tax/income/credits/ctc/age_threshold.yaml
@@ -21,4 +21,6 @@ metadata:
       href: https://tax.colorado.gov/sites/tax/files/documents/DR0104CN_2023.pdf#page=1
     - title: 2024 Colorado Child Tax Credit Instructions, Section B
       href: https://tax.colorado.gov/sites/tax/files/documents/DR_0104CN_2024.pdf#page=2
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Line 1
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=26
       # Colorado introduced the child tax credit in 2022.
diff --git a/...cyengine_us/parameters/gov/states/co/tax/income/credits/ctc/amount/head_of_household.yaml b/...cyengine_us/parameters/gov/states/co/tax/income/credits/ctc/amount/head_of_household.yaml
@@ -10,6 +10,8 @@ metadata:
       href: https://leg.colorado.gov/sites/default/files/2023a_1112_signed.pdf#page=5
     - title: 2024 Colorado Child Tax Credit Instructions, Section B
       href: https://tax.colorado.gov/sites/tax/files/documents/DR_0104CN_2024.pdf#page=2
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Section B
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=26
 brackets:
   - threshold:
       2024-01-01: -.inf

diff --git a/policyengine_us/parameters/gov/states/co/tax/income/credits/ctc/amount/joint.yaml b/policyengine_us/parameters/gov/states/co/tax/income/credits/ctc/amount/joint.yaml
@@ -10,6 +10,8 @@ metadata:
       href: https://leg.colorado.gov/sites/default/files/2023a_1112_signed.pdf#page=6
     - title: 2024 Colorado Child Tax Credit Instructions, Section B
       href: https://tax.colorado.gov/sites/tax/files/documents/DR_0104CN_2024.pdf#page=2
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Section B
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=26
 brackets:
   - threshold:
       2024-01-01: -.inf

diff --git a/policyengine_us/parameters/gov/states/co/tax/income/credits/ctc/amount/separate.yaml b/policyengine_us/parameters/gov/states/co/tax/income/credits/ctc/amount/separate.yaml
@@ -10,6 +10,8 @@ metadata:
       href: https://leg.colorado.gov/sites/default/files/2023a_1112_signed.pdf#page=5
     - title: 2024 Colorado Child Tax Credit Instructions, Section B
       href: https://tax.colorado.gov/sites/tax/files/documents/DR_0104CN_2024.pdf#page=2
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Section B
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=26
 brackets:
   - threshold:
       2024-01-01: -.inf

diff --git a/policyengine_us/parameters/gov/states/co/tax/income/credits/ctc/amount/single.yaml b/policyengine_us/parameters/gov/states/co/tax/income/credits/ctc/amount/single.yaml
@@ -10,6 +10,8 @@ metadata:
       href: https://leg.colorado.gov/sites/default/files/2023a_1112_signed.pdf#page=5
     - title: 2024 Colorado Child Tax Credit Instructions, Section B
       href: https://tax.colorado.gov/sites/tax/files/documents/DR_0104CN_2024.pdf#page=2
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Section B
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=26
 brackets:
   - threshold:
       2024-01-01: -.inf

diff --git a/policyengine_us/parameters/gov/states/co/tax/income/credits/ctc/amount/surviving_spouse.yaml b/policyengine_us/parameters/gov/states/co/tax/income/credits/ctc/amount/surviving_spouse.yaml
@@ -10,6 +10,8 @@ metadata:
       href: https://leg.colorado.gov/sites/default/files/2023a_1112_signed.pdf#page=5
     - title: 2024 Colorado Child Tax Credit Instructions, Section B
       href: https://tax.colorado.gov/sites/tax/files/documents/DR_0104CN_2024.pdf#page=2
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Section B
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=26
 brackets:
   - threshold:
       2024-01-01: -.inf

diff --git a/...engine_us/parameters/gov/states/co/tax/income/credits/ctc/ctc_matched_federal_credit.yaml b/...engine_us/parameters/gov/states/co/tax/income/credits/ctc/ctc_matched_federal_credit.yaml
@@ -8,6 +8,8 @@ metadata:
   # in the 2022 tax forms
     - title: House Bill 23-1112, Section 2, (3.5) / (4)
       href: https://leg.colorado.gov/sites/default/files/2023a_1112_signed.pdf#page=5
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Line 1
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=26
 values:
   2022-01-01: true
   2024-01-01: false
diff --git a/policyengine_us/parameters/gov/states/co/tax/income/credits/ctc/eligible_child.yaml b/policyengine_us/parameters/gov/states/co/tax/income/credits/ctc/eligible_child.yaml
@@ -11,3 +11,5 @@ metadata:
   reference:
     - title: House Bill 23-1112, Section 2, (1), (a)
       href: https://leg.colorado.gov/sites/default/files/2023a_1112_signed.pdf#page=4
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Line 1
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=26
diff --git a/policyengine_us/parameters/gov/states/co/tax/income/credits/ctc/rate/head_of_household.yaml b/policyengine_us/parameters/gov/states/co/tax/income/credits/ctc/rate/head_of_household.yaml
@@ -18,6 +18,8 @@ metadata:
       href: https://tax.colorado.gov/sites/tax/files/documents/DR0104CN_2023.pdf#page=6
     - title: 2021 Colorado Individual Income Tax Filing Guide
       href: https://tax.colorado.gov/sites/tax/files/documents/DR0104Book_2021_V3.pdf#page=15
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Line 1
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=26
       # Colorado introduced the child tax credit in 2022.
 brackets:
   - threshold:

diff --git a/policyengine_us/parameters/gov/states/co/tax/income/credits/ctc/rate/joint.yaml b/policyengine_us/parameters/gov/states/co/tax/income/credits/ctc/rate/joint.yaml
@@ -18,6 +18,8 @@ metadata:
       href: https://tax.colorado.gov/sites/tax/files/documents/DR0104CN_2023.pdf#page=6
     - title: 2021 Colorado Individual Income Tax Filing Guide
       href: https://tax.colorado.gov/sites/tax/files/documents/DR0104Book_2021_V3.pdf#page=15
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Line 1
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=26
       # Colorado introduced the child tax credit in 2022.
 brackets:
   - threshold:

diff --git a/policyengine_us/parameters/gov/states/co/tax/income/credits/ctc/rate/separate.yaml b/policyengine_us/parameters/gov/states/co/tax/income/credits/ctc/rate/separate.yaml
@@ -18,6 +18,8 @@ metadata:
       href: https://tax.colorado.gov/sites/tax/files/documents/DR0104CN_2023.pdf#page=6
     - title: 2021 Colorado Individual Income Tax Filing Guide
       href: https://tax.colorado.gov/sites/tax/files/documents/DR0104Book_2021_V3.pdf#page=15
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Line 1
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=26
       # Colorado introduced the child tax credit in 2022.
 brackets:
   - threshold:

diff --git a/policyengine_us/parameters/gov/states/co/tax/income/credits/ctc/rate/single.yaml b/policyengine_us/parameters/gov/states/co/tax/income/credits/ctc/rate/single.yaml
@@ -18,6 +18,8 @@ metadata:
       href: https://tax.colorado.gov/sites/tax/files/documents/DR0104CN_2023.pdf#page=6
     - title: 2021 Colorado Individual Income Tax Filing Guide
       href: https://tax.colorado.gov/sites/tax/files/documents/DR0104Book_2021_V3.pdf#page=15
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Line 1
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=26
       # Colorado introduced the child tax credit in 2022.
 brackets:
   - threshold:

diff --git a/policyengine_us/parameters/gov/states/co/tax/income/credits/ctc/rate/surviving_spouse.yaml b/policyengine_us/parameters/gov/states/co/tax/income/credits/ctc/rate/surviving_spouse.yaml
@@ -18,6 +18,8 @@ metadata:
       href: https://tax.colorado.gov/sites/tax/files/documents/DR0104CN_2023.pdf#page=6
     - title: 2021 Colorado Individual Income Tax Filing Guide
       href: https://tax.colorado.gov/sites/tax/files/documents/DR0104Book_2021_V3.pdf#page=15
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Line 1
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=26
       # Colorado introduced the child tax credit in 2022.
 brackets:
   - threshold:

diff --git a/policyengine_us/parameters/gov/states/co/tax/income/credits/eitc/match.yaml b/policyengine_us/parameters/gov/states/co/tax/income/credits/eitc/match.yaml
@@ -8,13 +8,14 @@ values:
   # It also increases the amounts for 2025 and 2026
   # regardless of state revenue.
   # It can rise higher depending on state revenue.
-  2025-01-01: 0.35
+  # 2025 is 50% per Book 104.
+  2025-01-01: 0.5
   2026-01-01: 0.25
   2034-01-01: 0.10
 metadata:
   period: year
   unit: /1
-  label: Colorado EITC match 
+  label: Colorado EITC match
   reference:
     - title: C.R.S. 39-22-123.5
       href: https://advance.lexis.com/documentpage/?pdmfid=1000516&crid=ad7daeaa-b9cd-4f50-9c62-7bddb226d77c&nodeid=ABPAACAACAABAACABH&nodepath=%2FROOT%2FABP%2FABPAAC%2FABPAACAAC%2FABPAACAACAAB%2FABPAACAACAABAAC%2FABPAACAACAABAACABH&level=6&haschildren=&populated=false&title=39-22-123.5.+Earned+income+tax+credit+-+legislative+declaration+-+repeal.&config=014FJAAyNGJkY2Y4Zi1mNjgyLTRkN2YtYmE4OS03NTYzNzYzOTg0OGEKAFBvZENhdGFsb2d592qv2Kywlf8caKqYROP5&pddocfullpath=%2Fshared%2Fdocument%2Fstatutes-legislation%2Furn%3AcontentItem%3A6B7G-SG43-RTYH-3036-00008-00&ecomp=6gf59kk&prid=22d89c10-a7eb-48af-90ff-837a5559904e
@@ -24,8 +25,10 @@ metadata:
     - title: HB24-1134
       href: https://leg.colorado.gov/bills/hb24-1134
     - title: 2022 Colorado Individual Income Tax Filing Guide, Line 5
-      href: https://tax.colorado.gov/sites/tax/files/documents/DR_0104_Book_2022.pdf#page=16 
+      href: https://tax.colorado.gov/sites/tax/files/documents/DR_0104_Book_2022.pdf#page=16
     - title: 2023 Colorado Individual Tax Filing Guide 104 Book, Line 5
       href: https://tax.colorado.gov/sites/tax/files/documents/Book0104_2023.pdf#page=18
     - title: 2024 Colorado Individual Tax Filing Guide 104 Book, Instructions for Select Credits from the DR 0104CR, Line 5
       href: https://tax.colorado.gov/sites/tax/files/documents/DR0104_book_2024.pdf#page=25
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Line 5
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=25
diff --git a/...e_us/parameters/gov/states/co/tax/income/credits/family_affordability/age_multiplier.yaml b/...e_us/parameters/gov/states/co/tax/income/credits/family_affordability/age_multiplier.yaml
@@ -10,6 +10,8 @@ metadata:
       href: https://leg.colorado.gov/bills/hb24-1311
     - title: 2024 Colorado Child Tax Credit Instructions, Section C
       href: https://tax.colorado.gov/sites/tax/files/documents/DR_0104CN_2024.pdf#page=3
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Section C
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=27
 brackets:
   - threshold:
       2024-01-01: 0

diff --git a/policyengine_us/parameters/gov/states/co/tax/income/credits/family_affordability/amount.yaml b/policyengine_us/parameters/gov/states/co/tax/income/credits/family_affordability/amount.yaml
@@ -1,6 +1,7 @@
 description: Colorado provides this family affordability tax credit base amount for each younger child.
 values:
   2024-01-01: 3_200
+  2025-01-01: 3_273
 metadata:
   period: year
   unit: currency-USD
@@ -10,3 +11,5 @@ metadata:
       href: https://leg.colorado.gov/bills/hb24-1311
     - title: 2024 Colorado Child Tax Credit Instructions, Section C
       href: https://tax.colorado.gov/sites/tax/files/documents/DR_0104CN_2024.pdf#page=3
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Section C
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=27
diff --git a/...parameters/gov/states/co/tax/income/credits/family_affordability/reduction/increment.yaml b/...parameters/gov/states/co/tax/income/credits/family_affordability/reduction/increment.yaml
@@ -13,6 +13,8 @@ metadata:
       href: https://leg.colorado.gov/bills/hb24-1311
     - title: 2024 Colorado Child Tax Credit Instructions, Section C
       href: https://tax.colorado.gov/sites/tax/files/documents/DR_0104CN_2024.pdf#page=3
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Section C
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=27
 
 
 values:

diff --git a/...e_us/parameters/gov/states/co/tax/income/credits/family_affordability/reduction/rate.yaml b/...e_us/parameters/gov/states/co/tax/income/credits/family_affordability/reduction/rate.yaml
@@ -7,6 +7,8 @@ metadata:
     - title: Colorado General Assembly House Bill 24-1311 Family Affordability Tax Credit
       href: https://leg.colorado.gov/bills/hb24-1311
     - title: 2024 Colorado Child Tax Credit Instructions, Section C
-      href: https://tax.colorado.gov/sites/tax/files/documents/DR_0104CN_2024.pdf#page=3  
+      href: https://tax.colorado.gov/sites/tax/files/documents/DR_0104CN_2024.pdf#page=3
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Section C
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=27
 values:
   2024-01-01: 0.06875
diff --git a/...parameters/gov/states/co/tax/income/credits/family_affordability/reduction/threshold.yaml b/...parameters/gov/states/co/tax/income/credits/family_affordability/reduction/threshold.yaml
@@ -10,6 +10,8 @@ metadata:
       href: https://leg.colorado.gov/bills/hb24-1311
     - title: 2024 Colorado Child Tax Credit Instructions, Section C
       href: https://tax.colorado.gov/sites/tax/files/documents/DR_0104CN_2024.pdf#page=3
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Section C
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=27
 SINGLE:
   values:
     2024-01-01: 15_000

diff --git a/...arameters/gov/states/co/tax/income/credits/income_qualified_senior_housing/age_limit.yaml b/...arameters/gov/states/co/tax/income/credits/income_qualified_senior_housing/age_limit.yaml
@@ -12,5 +12,7 @@ metadata:
       href: https://tax.colorado.gov/sites/tax/files/documents/DR0104_book_2024.pdf#page=28
     - title: 39-22-544 - Credit against tax - qualifying seniors (4) (a)
       href: https://casetext.com/statute/colorado-revised-statutes/title-39-taxation/specific-taxes/income-tax/article-22-income-tax/part-5-special-rules/section-39-22-544-credit-against-tax-qualifying-seniors-creation-legislative-declaration-definitions
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Line 6
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=28
 
 # Program only in effect for tax years 2022 and 2024
diff --git a/...rs/gov/states/co/tax/income/credits/income_qualified_senior_housing/income_threshold.yaml b/...rs/gov/states/co/tax/income/credits/income_qualified_senior_housing/income_threshold.yaml
@@ -11,6 +11,8 @@ metadata:
       href: https://tax.colorado.gov/sites/tax/files/documents/DR0104_book_2024.pdf#page=28
     - title: 39-22-544 - Credit against tax - qualifying seniors (4) (a)
       href: https://casetext.com/statute/colorado-revised-statutes/title-39-taxation/specific-taxes/income-tax/article-22-income-tax/part-5-special-rules/section-39-22-544-credit-against-tax-qualifying-seniors-creation-legislative-declaration-definitions
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Line 6
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=28
 
 values:
   2022-01-01: 75_000

diff --git a/...rs/gov/states/co/tax/income/credits/income_qualified_senior_housing/reduction/amount.yaml b/...rs/gov/states/co/tax/income/credits/income_qualified_senior_housing/reduction/amount.yaml
@@ -12,6 +12,8 @@ metadata:
       href: https://tax.colorado.gov/sites/tax/files/documents/DR0104_book_2024.pdf#page=28
     - title: C.R.S. 39-22-544 (4)
       href: https://advance.lexis.com/documentpage/?pdmfid=1000516&crid=36044aec-3814-40aa-973a-a3c829f9fd0b&action=pawlinkdoc&pdcomponentid=&pddocfullpath=%2fshared%2fdocument%2fstatutes-legislation%2furn%3acontentItem%3a6633-05N3-GXF6-81C6-00008-00&pdtocnodeidentifier=ABPAACAACAABAAGACL&config=014FJAAyNGJkY2Y4Zi1mNjgyLTRkN2YtYmE4OS03NTYzNzYzOTg0OGEKAFBvZENhdGFsb2d592qv2Kywlf8caKqYROP5&ecomp=k2vckkk&prid=0823b89b-e2f2-4942-affb-ba0d59f746b8
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Line 6
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=28
   breakdown:
     - filing_status
 

diff --git a/...gov/states/co/tax/income/credits/income_qualified_senior_housing/reduction/increment.yaml b/...gov/states/co/tax/income/credits/income_qualified_senior_housing/reduction/increment.yaml
@@ -12,6 +12,8 @@ metadata:
       href: https://tax.colorado.gov/sites/tax/files/documents/DR0104_book_2024.pdf#page=28
     - title: C.R.S. 39-22-544 (4)
       href: https://advance.lexis.com/documentpage/?pdmfid=1000516&crid=36044aec-3814-40aa-973a-a3c829f9fd0b&action=pawlinkdoc&pdcomponentid=&pddocfullpath=%2fshared%2fdocument%2fstatutes-legislation%2furn%3acontentItem%3a6633-05N3-GXF6-81C6-00008-00&pdtocnodeidentifier=ABPAACAACAABAAGACL&config=014FJAAyNGJkY2Y4Zi1mNjgyLTRkN2YtYmE4OS03NTYzNzYzOTg0OGEKAFBvZENhdGFsb2d592qv2Kywlf8caKqYROP5&ecomp=k2vckkk&prid=0823b89b-e2f2-4942-affb-ba0d59f746b8
+    - title: 2025 Colorado Individual Tax Filing Guide 104 Book, Line 6
+      href: https://tax.colorado.gov/sites/tax/files/documents/Book104_2025.pdf#page=28
 values:
   2022-01-01: 500
   2023-01-01: 0