PolicyEngine · MaxGhenis · Mar 23, 2026 · Mar 23, 2026 · Mar 23, 2026 · Mar 23, 2026
diff --git a/changelog.d/council-tax-reduction.added.md b/changelog.d/council-tax-reduction.added.md
@@ -0,0 +1 @@
+Added an initial `council_tax_reduction` framework covering Wales, Scotland, English pension-age households, and explicit working-age overrides for Stroud and Dudley, and netted Council Tax Reduction against household council tax in downstream income measures.
diff --git a/...meters/gov/local_authorities/chesterfield/council_tax_reduction/maximum_support_rate.yaml b/...meters/gov/local_authorities/chesterfield/council_tax_reduction/maximum_support_rate.yaml
@@ -0,0 +1,12 @@
+description: Maximum share of eligible Council Tax liability covered for working-age households under the Chesterfield Council Tax Support scheme.
+values:
+  2025-04-01: 0.915
+metadata:
+  unit: /1
+  period: year
+  label: Chesterfield Council Tax Support maximum support rate
+  reference:
+    - title: Council Tax Support
+      href: https://www.chesterfield.gov.uk/council-tax-and-business-rates/council-tax/council-tax-support
+    - title: Chesterfield Borough Council Council Tax Support Scheme
+      href: https://www.chesterfield.gov.uk/media/zuxllbgk/chesterfield-borough-council-council-tax-support-scheme-2019-20.pdf
diff --git a/...rs/gov/local_authorities/chesterfield/council_tax_reduction/means_test/capital_limit.yaml b/...rs/gov/local_authorities/chesterfield/council_tax_reduction/means_test/capital_limit.yaml
@@ -0,0 +1,12 @@
+description: Capital limit under the Chesterfield Council Tax Support means test.
+values:
+  2025-04-01: 16000
+metadata:
+  unit: currency-GBP
+  period: year
+  label: Chesterfield Council Tax Support capital limit
+  reference:
+    - title: Council Tax Support
+      href: https://www.chesterfield.gov.uk/council-tax-and-business-rates/council-tax/council-tax-support
+    - title: Chesterfield Borough Council Council Tax Support Scheme
+      href: https://www.chesterfield.gov.uk/media/zuxllbgk/chesterfield-borough-council-council-tax-support-scheme-2019-20.pdf
diff --git a/.../gov/local_authorities/chesterfield/council_tax_reduction/means_test/withdrawal_rate.yaml b/.../gov/local_authorities/chesterfield/council_tax_reduction/means_test/withdrawal_rate.yaml
@@ -0,0 +1,12 @@
+description: Withdrawal rate under the Chesterfield Council Tax Support means test.
+values:
+  2025-04-01: 0.2
+metadata:
+  unit: /1
+  period: year
+  label: Chesterfield Council Tax Support withdrawal rate
+  reference:
+    - title: Council Tax Support
+      href: https://www.chesterfield.gov.uk/council-tax-and-business-rates/council-tax/council-tax-support
+    - title: Chesterfield Borough Council Council Tax Support Scheme
+      href: https://www.chesterfield.gov.uk/media/zuxllbgk/chesterfield-borough-council-council-tax-support-scheme-2019-20.pdf
diff --git a/...rs/gov/local_authorities/chesterfield/council_tax_reduction/non_dep_deduction/amount.yaml b/...rs/gov/local_authorities/chesterfield/council_tax_reduction/non_dep_deduction/amount.yaml
@@ -0,0 +1,29 @@
+description: Weekly non-dependant deduction schedule under the Chesterfield Council Tax Support scheme.
+brackets:
+  - threshold:
+      2025-04-01: 0
+    amount:
+      2025-04-01: 4
+  - threshold:
+      2025-04-01: 266
+    amount:
+      2025-04-01: 8.1
+  - threshold:
+      2025-04-01: 463
+    amount:
+      2025-04-01: 10.2
+  - threshold:
+      2025-04-01: 577
+    amount:
+      2025-04-01: 12.2
+metadata:
+  amount_unit: currency-GBP
+  period: week
+  threshold_unit: currency-GBP
+  type: single_amount
+  label: Chesterfield Council Tax Support non-dependant deduction schedule
+  reference:
+    - title: Council Tax Support
+      href: https://www.chesterfield.gov.uk/council-tax-and-business-rates/council-tax/council-tax-support
+    - title: Chesterfield Borough Council Council Tax Support Scheme
+      href: https://www.chesterfield.gov.uk/media/zuxllbgk/chesterfield-borough-council-council-tax-support-scheme-2019-20.pdf
diff --git a/.../gov/local_authorities/dudley/council_tax_reduction/maximum_liability/cap_band_ratio.yaml b/.../gov/local_authorities/dudley/council_tax_reduction/maximum_liability/cap_band_ratio.yaml
@@ -0,0 +1,12 @@
+description: Maximum council tax band ratio used to cap eligible liability for working-age households under the Dudley Council Tax Reduction scheme.
+values:
+  2025-04-01: 0.888888889
+metadata:
+  unit: /1
+  period: year
+  label: Dudley Council Tax Reduction capped band ratio
+  reference:
+    - title: Council Tax Reduction Scheme
+      href: https://www.dudley.gov.uk/residents/benefits/council-tax-reduction-scheme/
+    - title: Dudley MBC Council Tax Reduction Scheme 2025-26
+      href: https://www.dudley.gov.uk/media/khllf4zc/dudley-council-tax-reduction-scheme-2025-26.pdf
diff --git a/...k/parameters/gov/local_authorities/dudley/council_tax_reduction/maximum_support_rate.yaml b/...k/parameters/gov/local_authorities/dudley/council_tax_reduction/maximum_support_rate.yaml
@@ -0,0 +1,12 @@
+description: Maximum share of eligible Council Tax liability covered for working-age households under the Dudley Council Tax Reduction scheme.
+values:
+  2025-04-01: 0.4
+metadata:
+  unit: /1
+  period: year
+  label: Dudley Council Tax Reduction maximum support rate
+  reference:
+    - title: Council Tax Reduction Scheme
+      href: https://www.dudley.gov.uk/residents/benefits/council-tax-reduction-scheme/
+    - title: Dudley MBC Council Tax Reduction Scheme 2025-26
+      href: https://www.dudley.gov.uk/media/khllf4zc/dudley-council-tax-reduction-scheme-2025-26.pdf
diff --git a/...rameters/gov/local_authorities/dudley/council_tax_reduction/means_test/capital_limit.yaml b/...rameters/gov/local_authorities/dudley/council_tax_reduction/means_test/capital_limit.yaml
@@ -0,0 +1,12 @@
+description: Capital limit under the Dudley Council Tax Reduction means test.
+values:
+  2025-04-01: 16_000
+metadata:
+  unit: currency-GBP
+  period: year
+  label: Dudley Council Tax Reduction capital limit
+  reference:
+    - title: Council Tax Reduction Scheme
+      href: https://www.dudley.gov.uk/residents/benefits/council-tax-reduction-scheme/
+    - title: Dudley MBC Council Tax Reduction Scheme 2025-26
+      href: https://www.dudley.gov.uk/media/khllf4zc/dudley-council-tax-reduction-scheme-2025-26.pdf
diff --git a/...meters/gov/local_authorities/dudley/council_tax_reduction/means_test/withdrawal_rate.yaml b/...meters/gov/local_authorities/dudley/council_tax_reduction/means_test/withdrawal_rate.yaml
@@ -0,0 +1,12 @@
+description: Withdrawal rate under the Dudley Council Tax Reduction means test.
+values:
+  2025-04-01: 0.2
+metadata:
+  unit: /1
+  period: year
+  label: Dudley Council Tax Reduction withdrawal rate
+  reference:
+    - title: Council Tax Reduction Scheme
+      href: https://www.dudley.gov.uk/residents/benefits/council-tax-reduction-scheme/
+    - title: Dudley MBC Council Tax Reduction Scheme 2025-26
+      href: https://www.dudley.gov.uk/media/khllf4zc/dudley-council-tax-reduction-scheme-2025-26.pdf
diff --git a/...rameters/gov/local_authorities/dudley/council_tax_reduction/non_dep_deduction/amount.yaml b/...rameters/gov/local_authorities/dudley/council_tax_reduction/non_dep_deduction/amount.yaml
@@ -0,0 +1,12 @@
+description: Weekly non-dependant deduction under the Dudley Council Tax Reduction scheme.
+values:
+  2025-04-01: 5
+metadata:
+  unit: currency-GBP
+  period: week
+  label: Dudley Council Tax Reduction non-dependant deduction amount
+  reference:
+    - title: Council Tax Reduction Scheme
+      href: https://www.dudley.gov.uk/residents/benefits/council-tax-reduction-scheme/
+    - title: Dudley MBC Council Tax Reduction Scheme 2025-26
+      href: https://www.dudley.gov.uk/media/khllf4zc/dudley-council-tax-reduction-scheme-2025-26.pdf
diff --git a/.../gov/local_authorities/east_hertfordshire/council_tax_reduction/maximum_support_rate.yaml b/.../gov/local_authorities/east_hertfordshire/council_tax_reduction/maximum_support_rate.yaml
@@ -0,0 +1,12 @@
+description: Maximum share of eligible Council Tax liability covered for working-age households under the East Hertfordshire Council Tax Reduction scheme.
+values:
+  2025-04-01: 0.915
+metadata:
+  unit: /1
+  period: year
+  label: East Hertfordshire Council Tax Reduction maximum support rate
+  reference:
+    - title: Council Tax Support
+      href: https://www.eastherts.gov.uk/benefits-and-financial-support/council-tax-support
+    - title: East Hertfordshire District Council Council Tax Reduction Scheme 2025/26
+      href: https://cdn-eastherts.onwebcurl.com/s3fs-public/2025-03/East%20Herts%20S13a%20202526%20Scheme%20Final.pdf
diff --git a/.../local_authorities/east_hertfordshire/council_tax_reduction/means_test/capital_limit.yaml b/.../local_authorities/east_hertfordshire/council_tax_reduction/means_test/capital_limit.yaml
@@ -0,0 +1,10 @@
+description: Capital limit under the East Hertfordshire Council Tax Reduction means test.
+values:
+  2025-04-01: 16000
+metadata:
+  unit: currency-GBP
+  period: year
+  label: East Hertfordshire Council Tax Reduction capital limit
+  reference:
+    - title: East Hertfordshire District Council Council Tax Reduction Scheme 2025/26
+      href: https://cdn-eastherts.onwebcurl.com/s3fs-public/2025-03/East%20Herts%20S13a%20202526%20Scheme%20Final.pdf
diff --git a/...ocal_authorities/east_hertfordshire/council_tax_reduction/means_test/withdrawal_rate.yaml b/...ocal_authorities/east_hertfordshire/council_tax_reduction/means_test/withdrawal_rate.yaml
@@ -0,0 +1,10 @@
+description: Withdrawal rate under the East Hertfordshire Council Tax Reduction means test.
+values:
+  2025-04-01: 0.2
+metadata:
+  unit: /1
+  period: year
+  label: East Hertfordshire Council Tax Reduction withdrawal rate
+  reference:
+    - title: East Hertfordshire District Council Council Tax Reduction Scheme 2025/26
+      href: https://cdn-eastherts.onwebcurl.com/s3fs-public/2025-03/East%20Herts%20S13a%20202526%20Scheme%20Final.pdf
diff --git a/.../local_authorities/east_hertfordshire/council_tax_reduction/non_dep_deduction/amount.yaml b/.../local_authorities/east_hertfordshire/council_tax_reduction/non_dep_deduction/amount.yaml
@@ -0,0 +1,27 @@
+description: Weekly non-dependant deduction schedule under the East Hertfordshire Council Tax Reduction scheme.
+brackets:
+  - threshold:
+      2025-04-01: 0
+    amount:
+      2025-04-01: 5
+  - threshold:
+      2025-04-01: 266
+    amount:
+      2025-04-01: 10.2
+  - threshold:
+      2025-04-01: 463
+    amount:
+      2025-04-01: 12.8
+  - threshold:
+      2025-04-01: 577
+    amount:
+      2025-04-01: 15.35
+metadata:
+  amount_unit: currency-GBP
+  period: week
+  threshold_unit: currency-GBP
+  type: single_amount
+  label: East Hertfordshire Council Tax Reduction non-dependant deduction schedule
+  reference:
+    - title: East Hertfordshire District Council Council Tax Reduction Scheme 2025/26
+      href: https://cdn-eastherts.onwebcurl.com/s3fs-public/2025-03/East%20Herts%20S13a%20202526%20Scheme%20Final.pdf
diff --git a/policyengine_uk/parameters/gov/local_authorities/england/council_tax/band_ratio.yaml b/policyengine_uk/parameters/gov/local_authorities/england/council_tax/band_ratio.yaml
@@ -0,0 +1,38 @@
+A:
+  values:
+    0001-01-01: 0.666666667
+B:
+  values:
+    0001-01-01: 0.777777778
+C:
+  values:
+    0001-01-01: 0.888888889
+D:
+  values:
+    0001-01-01: 1
+E:
+  values:
+    0001-01-01: 1.222222222
+F:
+  values:
+    0001-01-01: 1.444444444
+G:
+  values:
+    0001-01-01: 1.666666667
+H:
+  values:
+    0001-01-01: 2
+I:
+  values:
+    0001-01-01: 2.333333333
+description: England Council Tax band ratios relative to Band D.
+metadata:
+  unit: /1
+  period: year
+  label: England Council Tax band ratios
+  propagate_metadata_to_children: true
+  reference:
+    - title: Council Tax bands
+      href: https://www.gov.uk/council-tax-bands
+    - title: The Local Government Finance Act 1992 (Consequential Amendments) Regulations 2012 explanatory memorandum
+      href: https://www.legislation.gov.uk/uksi/2012/2914/pdfs/uksiem_20122914_en.pdf
diff --git a/.../gov/local_authorities/england/council_tax_reduction/pensioners/maximum_support_rate.yaml b/.../gov/local_authorities/england/council_tax_reduction/pensioners/maximum_support_rate.yaml
@@ -0,0 +1,10 @@
+description: Maximum share of eligible Council Tax liability covered for pensioner households under the England Council Tax Reduction scheme.
+values:
+  2013-04-01: 1
+metadata:
+  unit: /1
+  period: year
+  label: England Council Tax Reduction pensioner maximum support rate
+  reference:
+    - title: The Council Tax Reduction Schemes (Prescribed Requirements) (England) Regulations 2012
+      href: https://www.legislation.gov.uk/uksi/2012/2885/contents/made
diff --git a/.../local_authorities/england/council_tax_reduction/pensioners/means_test/capital_limit.yaml b/.../local_authorities/england/council_tax_reduction/pensioners/means_test/capital_limit.yaml
@@ -0,0 +1,10 @@
+description: Capital limit for pensioner households under the England Council Tax Reduction scheme.
+values:
+  2013-04-01: 16_000
+metadata:
+  unit: currency-GBP
+  period: year
+  label: England Council Tax Reduction pensioner capital limit
+  reference:
+    - title: The Council Tax Reduction Schemes (Prescribed Requirements) (England) Regulations 2012
+      href: https://www.legislation.gov.uk/uksi/2012/2885/contents/made
diff --git a/...ocal_authorities/england/council_tax_reduction/pensioners/means_test/withdrawal_rate.yaml b/...ocal_authorities/england/council_tax_reduction/pensioners/means_test/withdrawal_rate.yaml
@@ -0,0 +1,10 @@
+description: Withdrawal rate for pensioner households under the England Council Tax Reduction scheme.
+values:
+  2013-04-01: 0.2
+metadata:
+  unit: /1
+  period: year
+  label: England Council Tax Reduction pensioner withdrawal rate
+  reference:
+    - title: The Council Tax Reduction Schemes (Prescribed Requirements) (England) Regulations 2012
+      href: https://www.legislation.gov.uk/uksi/2012/2885/contents/made
diff --git a/...parameters/gov/local_authorities/scotland/council_tax_reduction/maximum_support_rate.yaml b/...parameters/gov/local_authorities/scotland/council_tax_reduction/maximum_support_rate.yaml
@@ -0,0 +1,10 @@
+description: Maximum share of eligible Council Tax liability covered under the Scotland Council Tax Reduction scheme.
+values:
+  2013-04-01: 1
+metadata:
+  unit: /1
+  period: year
+  label: Scotland Council Tax Reduction maximum support rate
+  reference:
+    - title: The Council Tax Reduction (Scotland) Regulations 2012
+      href: https://www.legislation.gov.uk/ssi/2012/303/contents/made
diff --git a/...meters/gov/local_authorities/scotland/council_tax_reduction/means_test/capital_limit.yaml b/...meters/gov/local_authorities/scotland/council_tax_reduction/means_test/capital_limit.yaml
@@ -0,0 +1,10 @@
+description: Capital limit under the Scotland Council Tax Reduction scheme.
+values:
+  2013-04-01: 16_000
+metadata:
+  unit: currency-GBP
+  period: year
+  label: Scotland Council Tax Reduction capital limit
+  reference:
+    - title: The Council Tax Reduction (Scotland) Regulations 2012
+      href: https://www.legislation.gov.uk/ssi/2012/303/contents/made
diff --git a/...ters/gov/local_authorities/scotland/council_tax_reduction/means_test/withdrawal_rate.yaml b/...ters/gov/local_authorities/scotland/council_tax_reduction/means_test/withdrawal_rate.yaml
@@ -0,0 +1,10 @@
+description: Withdrawal rate under the Scotland Council Tax Reduction scheme.
+values:
+  2013-04-01: 0.2
+metadata:
+  unit: /1
+  period: year
+  label: Scotland Council Tax Reduction withdrawal rate
+  reference:
+    - title: The Council Tax Reduction (Scotland) Regulations 2012
+      href: https://www.legislation.gov.uk/ssi/2012/303/contents/made
diff --git a/...arameters/gov/local_authorities/stevenage/council_tax_reduction/maximum_support_rate.yaml b/...arameters/gov/local_authorities/stevenage/council_tax_reduction/maximum_support_rate.yaml
@@ -0,0 +1,10 @@
+description: Maximum share of eligible Council Tax liability covered for working-age households under the Stevenage Council Tax Reduction scheme.
+values:
+  2025-04-01: 0.915
+metadata:
+  unit: /1
+  period: year
+  label: Stevenage Council Tax Reduction maximum support rate
+  reference:
+    - title: Stevenage Borough Council Council Tax Reduction Scheme 2025/26
+      href: https://www.stevenage.gov.uk/documents/council-tax/council-tax-support-scheme-2025-26.pdf
diff --git a/...eters/gov/local_authorities/stevenage/council_tax_reduction/means_test/capital_limit.yaml b/...eters/gov/local_authorities/stevenage/council_tax_reduction/means_test/capital_limit.yaml
@@ -0,0 +1,10 @@
+description: Capital limit under the Stevenage Council Tax Reduction means test.
+values:
+  2025-04-01: 16000
+metadata:
+  unit: currency-GBP
+  period: year
+  label: Stevenage Council Tax Reduction capital limit
+  reference:
+    - title: Stevenage Borough Council Council Tax Reduction Scheme 2025/26
+      href: https://www.stevenage.gov.uk/documents/council-tax/council-tax-support-scheme-2025-26.pdf
diff --git a/...ers/gov/local_authorities/stevenage/council_tax_reduction/means_test/withdrawal_rate.yaml b/...ers/gov/local_authorities/stevenage/council_tax_reduction/means_test/withdrawal_rate.yaml
@@ -0,0 +1,10 @@
+description: Withdrawal rate under the Stevenage Council Tax Reduction means test.
+values:
+  2025-04-01: 0.2
+metadata:
+  unit: /1
+  period: year
+  label: Stevenage Council Tax Reduction withdrawal rate
+  reference:
+    - title: Stevenage Borough Council Council Tax Reduction Scheme 2025/26
+      href: https://www.stevenage.gov.uk/documents/council-tax/council-tax-support-scheme-2025-26.pdf
diff --git a/...eters/gov/local_authorities/stevenage/council_tax_reduction/non_dep_deduction/amount.yaml b/...eters/gov/local_authorities/stevenage/council_tax_reduction/non_dep_deduction/amount.yaml
@@ -0,0 +1,27 @@
+description: Weekly non-dependant deduction schedule under the Stevenage Council Tax Reduction scheme.
+brackets:
+  - threshold:
+      2025-04-01: 0
+    amount:
+      2025-04-01: 5
+  - threshold:
+      2025-04-01: 266
+    amount:
+      2025-04-01: 10.2
+  - threshold:
+      2025-04-01: 463
+    amount:
+      2025-04-01: 12.8
+  - threshold:
+      2025-04-01: 577
+    amount:
+      2025-04-01: 15.35
+metadata:
+  amount_unit: currency-GBP
+  period: week
+  threshold_unit: currency-GBP
+  type: single_amount
+  label: Stevenage Council Tax Reduction non-dependant deduction schedule
+  reference:
+    - title: Stevenage Borough Council Council Tax Reduction Scheme 2025/26
+      href: https://www.stevenage.gov.uk/documents/council-tax/council-tax-support-scheme-2025-26.pdf
diff --git a/...k/parameters/gov/local_authorities/stroud/council_tax_reduction/maximum_support_rate.yaml b/...k/parameters/gov/local_authorities/stroud/council_tax_reduction/maximum_support_rate.yaml
@@ -0,0 +1,10 @@
+description: Maximum share of eligible Council Tax liability covered for working-age households under the Stroud Council Tax Reduction scheme.
+values:
+  2025-04-01: 1
+metadata:
+  unit: /1
+  period: year
+  label: Stroud Council Tax Reduction maximum support rate
+  reference:
+    - title: Council Tax Support Scheme for Pension Credit Age persons and Working Age persons 2025/26
+      href: https://www.stroud.gov.uk/media/bygb4zeg/summary-of-council-tax-support-scheme-202526.pdf
diff --git a/...rameters/gov/local_authorities/stroud/council_tax_reduction/means_test/capital_limit.yaml b/...rameters/gov/local_authorities/stroud/council_tax_reduction/means_test/capital_limit.yaml
@@ -0,0 +1,10 @@
+description: Capital limit for working-age households under the Stroud Council Tax Reduction scheme.
+values:
+  2025-04-01: 16_000
+metadata:
+  unit: currency-GBP
+  period: year
+  label: Stroud Council Tax Reduction capital limit
+  reference:
+    - title: Council Tax Support Scheme for Pension Credit Age persons and Working Age persons 2025/26
+      href: https://www.stroud.gov.uk/media/bygb4zeg/summary-of-council-tax-support-scheme-202526.pdf
diff --git a/...meters/gov/local_authorities/stroud/council_tax_reduction/means_test/withdrawal_rate.yaml b/...meters/gov/local_authorities/stroud/council_tax_reduction/means_test/withdrawal_rate.yaml
@@ -0,0 +1,10 @@
+description: Withdrawal rate for working-age households under the Stroud Council Tax Reduction scheme.
+values:
+  2025-04-01: 0.2
+metadata:
+  unit: /1
+  period: year
+  label: Stroud Council Tax Reduction withdrawal rate
+  reference:
+    - title: Council Tax Support Scheme for Pension Credit Age persons and Working Age persons 2025/26
+      href: https://www.stroud.gov.uk/media/bygb4zeg/summary-of-council-tax-support-scheme-202526.pdf
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		Added an initial `council_tax_reduction` framework covering Wales, Scotland, English pension-age households, and explicit working-age overrides for Stroud and Dudley, and netted Council Tax Reduction against household council tax in downstream income measures.