Autumn statement 2023 (#783)

* Add changes * Add Treasury baseline * Kick in from Jan * Use gov parameter for baseline * Format * Bump Core
PolicyEngine · Nov 22, 2023 · 3be89fa · 3be89fa
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diff --git a/.gitignore b/.gitignore
@@ -50,3 +50,6 @@ policyengine_uk/calibration/*.h5
 **/*.csv
 **/*.pkl
 **/*.log
+**/*.txt
+**/ukmod.json
+*.ipynb
diff --git a/changelog_entry.yaml b/changelog_entry.yaml
@@ -0,0 +1,4 @@
+- bump: minor
+  changes:
+    added:
+    - HM Treasury baseline for CPI uprating benefits.
diff --git a/policyengine_uk/parameters/calibration/uprating/september_cpi.yaml b/policyengine_uk/parameters/calibration/uprating/september_cpi.yaml
@@ -1,5 +1,7 @@
 description: September CPI
 values:
+  2024-01-01: 132.0
+  2023-04-01: 123.8
   2022-04-01: 112.4
   2021-04-01: 109.2
   2020-04-01: 108.4

diff --git a/policyengine_uk/parameters/gov/benefit_uprating_cpi.yaml b/policyengine_uk/parameters/gov/benefit_uprating_cpi.yaml
@@ -0,0 +1,28 @@
+description: September CPI
+values:
+  2024-01-01: 132.0
+  2023-04-01: 123.8
+  2022-04-01: 112.4
+  2021-04-01: 109.2
+  2020-04-01: 108.4
+  2019-04-01: 106.6
+  2018-04-01: 104.3
+  2017-04-01: 101.5
+  2016-04-01: 100.2
+  2015-04-01: 100.0
+  2014-04-01: 98.7
+  2013-04-01: 96.4
+  2012-04-01: 94.5
+  2011-04-01: 90.4
+  2010-04-01: 88.3
+  2009-04-01: 87.5
+  2008-04-01: 83.5
+  2007-04-01: 81.9
+  2006-04-01: 79.9
+  2005-04-01: 77.9
+  2004-04-01: 77.0
+  2003-04-01: 76.0
+  2002-04-01: 75.0
+  2001-04-01: 73.8
+metadata:
+  unit: currency-GBP
diff --git a/policyengine_uk/parameters/gov/contrib/benefit_uprating/inflation_adjustment.yaml b/policyengine_uk/parameters/gov/contrib/benefit_uprating/inflation_adjustment.yaml
diff --git a/policyengine_uk/parameters/gov/dwp/JSA/income/amount_18_24.yaml b/policyengine_uk/parameters/gov/dwp/JSA/income/amount_18_24.yaml
@@ -12,5 +12,5 @@ metadata:
   period: week
   unit: currency-GBP
   label: Income-based JSA (18-24)
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   reference: https://www.iser.essex.ac.uk/files/projects/UKMOD/EUROMOD_country_report.pdf#page=24
diff --git a/policyengine_uk/parameters/gov/dwp/JSA/income/amount_over_25.yaml b/policyengine_uk/parameters/gov/dwp/JSA/income/amount_over_25.yaml
@@ -11,6 +11,6 @@ values:
 metadata:
   period: week
   label: Income-based JSA (over 25)
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   unit: currency-GBP
   reference: https://www.iser.essex.ac.uk/files/projects/UKMOD/EUROMOD_country_report.pdf#page=24
diff --git a/policyengine_uk/parameters/gov/dwp/JSA/income/couple.yaml b/policyengine_uk/parameters/gov/dwp/JSA/income/couple.yaml
@@ -12,5 +12,5 @@ metadata:
   period: week
   unit: currency-GBP
   label: Income-based JSA (couple)
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   reference: https://www.iser.essex.ac.uk/files/projects/UKMOD/EUROMOD_country_report.pdf#page=24
diff --git a/policyengine_uk/parameters/gov/dwp/LHA/rates.yaml b/policyengine_uk/parameters/gov/dwp/LHA/rates.yaml
@@ -1,6 +1,6 @@
 metadata:
   propagate_metadata_to_children: true
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
 ASHFORD:
   A:
     description: LHA rate for Ashford homes in category CAT A

diff --git a/policyengine_uk/parameters/gov/dwp/housing_benefit/allowances/child.yaml b/policyengine_uk/parameters/gov/dwp/housing_benefit/allowances/child.yaml
@@ -7,7 +7,7 @@ metadata:
   propagate_metadata_to_children: true
   reference: https://england.shelter.org.uk/legal/benefits/housing_benefit/benefit_rates/housing_benefit_calculation_rates_2019_to_2020
   unit: currency-GBP
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
 values:
   2015-06-01: 66.9
   2021-04-01: 68.6

diff --git a/policyengine_uk/parameters/gov/dwp/housing_benefit/allowances/couple/SP_age.yaml b/policyengine_uk/parameters/gov/dwp/housing_benefit/allowances/couple/SP_age.yaml
@@ -8,5 +8,5 @@ metadata:
   unit: currency-GBP
   name: hb_couple_pensioner
   label: HB personal allowance (couple, pensioner)
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   reference: https://england.shelter.org.uk/legal/benefits/housing_benefit/benefit_rates/housing_benefit_calculation_rates_2019_to_2020
diff --git a/policyengine_uk/parameters/gov/dwp/housing_benefit/allowances/couple/both_under_18.yaml b/policyengine_uk/parameters/gov/dwp/housing_benefit/allowances/couple/both_under_18.yaml
@@ -8,7 +8,7 @@ metadata:
   propagate_metadata_to_children: true
   reference: https://england.shelter.org.uk/legal/benefits/housing_benefit/benefit_rates/housing_benefit_calculation_rates_2019_to_2020
   unit: currency-GBP
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
 values:
   2015-06-01: 87.5
   2021-04-01: 89.45

diff --git a/policyengine_uk/parameters/gov/dwp/housing_benefit/allowances/couple/over_18.yaml b/policyengine_uk/parameters/gov/dwp/housing_benefit/allowances/couple/over_18.yaml
@@ -6,5 +6,5 @@ metadata:
   name: hb_couple_o18
   label: HB personal allowance (couple, over 18)
   unit: currency-GBP
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   reference: https://england.shelter.org.uk/legal/benefits/housing_benefit/benefit_rates/housing_benefit_calculation_rates_2019_to_2020
diff --git a/policyengine_uk/parameters/gov/dwp/housing_benefit/allowances/lone_parent/SP_age.yaml b/policyengine_uk/parameters/gov/dwp/housing_benefit/allowances/lone_parent/SP_age.yaml
@@ -8,7 +8,7 @@ metadata:
   propagate_metadata_to_children: true
   reference: https://england.shelter.org.uk/legal/benefits/housing_benefit/benefit_rates/housing_benefit_calculation_rates_2019_to_2020
   unit: currency-GBP
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
 values:
   2015-06-01: 181
   2021-04-01: 191.15

diff --git a/policyengine_uk/parameters/gov/dwp/housing_benefit/allowances/lone_parent/over_18.yaml b/policyengine_uk/parameters/gov/dwp/housing_benefit/allowances/lone_parent/over_18.yaml
@@ -5,7 +5,7 @@ values:
   2022-04-06: 77.00
 metadata:
   period: week
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   name: hb_lone_parent_o18
   label: HB personal allowance (lone parent, over 18)
   unit: currency-GBP

diff --git a/policyengine_uk/parameters/gov/dwp/housing_benefit/allowances/lone_parent/under_18.yaml b/policyengine_uk/parameters/gov/dwp/housing_benefit/allowances/lone_parent/under_18.yaml
@@ -7,7 +7,7 @@ metadata:
   propagate_metadata_to_children: true
   reference: https://england.shelter.org.uk/legal/benefits/housing_benefit/benefit_rates/housing_benefit_calculation_rates_2019_to_2020
   unit: currency-GBP
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
 values:
   2015-06-01: 57.9
   2021-04-01: 59.2

diff --git a/policyengine_uk/parameters/gov/dwp/housing_benefit/allowances/single/SP_age.yaml b/policyengine_uk/parameters/gov/dwp/housing_benefit/allowances/single/SP_age.yaml
@@ -5,7 +5,7 @@ values:
   2022-04-06: 197.10
 metadata:
   period: week
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   name: hb_single_pensioner
   label: HB personal allowance (single, pensioner)
   unit: currency-GBP

diff --git a/policyengine_uk/parameters/gov/dwp/housing_benefit/allowances/single/over_25.yaml b/policyengine_uk/parameters/gov/dwp/housing_benefit/allowances/single/over_25.yaml
@@ -8,5 +8,5 @@ metadata:
   unit: currency-GBP
   name: hb_single_o25
   label: HB personal allowance (single, over 25)
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   reference: https://england.shelter.org.uk/legal/benefits/housing_benefit/benefit_rates/housing_benefit_calculation_rates_2019_to_2020
diff --git a/policyengine_uk/parameters/gov/dwp/housing_benefit/allowances/single/under_25.yaml b/policyengine_uk/parameters/gov/dwp/housing_benefit/allowances/single/under_25.yaml
@@ -8,5 +8,5 @@ metadata:
   unit: currency-GBP
   name: hb_single_u25
   label: HB personal allowance (single, under 25)
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   reference: https://england.shelter.org.uk/legal/benefits/housing_benefit/benefit_rates/housing_benefit_calculation_rates_2019_to_2020
diff --git a/policyengine_uk/parameters/gov/dwp/income_support/amounts/amount_16_24.yaml b/policyengine_uk/parameters/gov/dwp/income_support/amounts/amount_16_24.yaml
@@ -5,5 +5,5 @@ metadata:
   period: week
   unit: currency-GBP
   label: Income Support applicable amount (single, 18-24)
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   reference: https://www.gov.uk/income-support/what-youll-get
diff --git a/policyengine_uk/parameters/gov/dwp/income_support/amounts/amount_couples_16_17.yaml b/policyengine_uk/parameters/gov/dwp/income_support/amounts/amount_couples_16_17.yaml
@@ -5,6 +5,6 @@ metadata:
   label: Income Support applicable amount (couples, both under 18)
   reference: https://www.gov.uk/income-support/what-youll-get
   unit: currency-GBP
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
 values:
   2015-06-01: 58.9
diff --git a/policyengine_uk/parameters/gov/dwp/income_support/amounts/amount_couples_age_gap.yaml b/policyengine_uk/parameters/gov/dwp/income_support/amounts/amount_couples_age_gap.yaml
@@ -6,6 +6,6 @@ metadata:
   label: Income Support applicable amount (couples, one under 18, one over 25)
   reference: https://www.gov.uk/income-support/what-youll-get
   unit: currency-GBP
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
 values:
   2015-06-01: 74.35
diff --git a/policyengine_uk/parameters/gov/dwp/income_support/amounts/amount_couples_over_18.yaml b/policyengine_uk/parameters/gov/dwp/income_support/amounts/amount_couples_over_18.yaml
@@ -4,6 +4,6 @@ values:
 metadata:
   period: week
   label: Income Support applicable amount (couples, both over 18)
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   unit: currency-GBP
   reference: https://www.gov.uk/income-support/what-youll-get
diff --git a/policyengine_uk/parameters/gov/dwp/income_support/amounts/amount_lone_16_17.yaml b/policyengine_uk/parameters/gov/dwp/income_support/amounts/amount_lone_16_17.yaml
@@ -5,6 +5,6 @@ metadata:
   label: Income Support applicable amount (lone parent, under 18)
   reference: https://www.gov.uk/income-support/what-youll-get
   unit: currency-GBP
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
 values:
   2015-06-01: 58.9
diff --git a/policyengine_uk/parameters/gov/dwp/income_support/amounts/amount_lone_over_18.yaml b/policyengine_uk/parameters/gov/dwp/income_support/amounts/amount_lone_over_18.yaml
@@ -5,5 +5,5 @@ metadata:
   period: week
   unit: currency-GBP
   label: Income Support applicable amount (lone parent, over 18)
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   reference: https://www.gov.uk/income-support/what-youll-get
diff --git a/policyengine_uk/parameters/gov/dwp/income_support/amounts/amount_over_25.yaml b/policyengine_uk/parameters/gov/dwp/income_support/amounts/amount_over_25.yaml
@@ -4,6 +4,6 @@ values:
 metadata:
   period: week
   label: Income Support applicable amount (single, over 25)
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   unit: currency-GBP
   reference: https://www.gov.uk/income-support/what-youll-get
diff --git a/policyengine_uk/parameters/gov/dwp/pension_credit/guarantee_credit/carer/addition.yaml b/policyengine_uk/parameters/gov/dwp/pension_credit/guarantee_credit/carer/addition.yaml
@@ -9,7 +9,7 @@ metadata:
   period: week
   name: pc_carer_addition
   label: Pension Credit carer addition
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   reference:
     - title: The Social Security Benefits Up-rating Order 2022
       href: https://www.legislation.gov.uk/uksi/2022/292/article/30/made#article-30-2-c
diff --git a/policyengine_uk/parameters/gov/dwp/pension_credit/guarantee_credit/child/addition.yaml b/policyengine_uk/parameters/gov/dwp/pension_credit/guarantee_credit/child/addition.yaml
@@ -9,7 +9,7 @@ metadata:
   - href: https://www.legislation.gov.uk/uksi/2002/1792/schedule/IIA/paragraph/9/2019-02-01
     title: The State Pension Credit Regulations 2002
   unit: currency-GBP
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
 values:
   2019-02-01: 53.34
   2020-04-01: 54.32

diff --git a/...gine_uk/parameters/gov/dwp/pension_credit/guarantee_credit/child/disability/addition.yaml b/...gine_uk/parameters/gov/dwp/pension_credit/guarantee_credit/child/disability/addition.yaml
@@ -10,7 +10,7 @@ metadata:
   - href: https://www.legislation.gov.uk/uksi/2002/1792/schedule/IIA/paragraph/9/2019-02-01
     title: The State Pension Credit Regulations 2002
   unit: currency-GBP
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
 values:
   2019-01-01: 29.02
   2020-04-01: 29.52

diff --git a/.../parameters/gov/dwp/pension_credit/guarantee_credit/child/disability/severe/addition.yaml b/.../parameters/gov/dwp/pension_credit/guarantee_credit/child/disability/severe/addition.yaml
@@ -10,7 +10,7 @@ metadata:
   - href: https://www.legislation.gov.uk/uksi/2002/1792/schedule/IIA/paragraph/9/2019-02-01
     title: The State Pension Credit Regulations 2002
   unit: currency-GBP
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
 values:
   2019-02-01: 88.34
   2020-04-01: 92.12

diff --git a/policyengine_uk/parameters/gov/dwp/pension_credit/guarantee_credit/minimum_guarantee.yaml b/policyengine_uk/parameters/gov/dwp/pension_credit/guarantee_credit/minimum_guarantee.yaml
@@ -21,7 +21,7 @@ metadata:
   period: week
   name: pc_min_guarantee
   label: Pension Credit minimum guarantee
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   unit: currency-GBP
   reference:
     - title: The State Pension Credit Regulations 2002 reg. 6

diff --git a/...ine_uk/parameters/gov/dwp/pension_credit/guarantee_credit/severe_disability/addition.yaml b/...ine_uk/parameters/gov/dwp/pension_credit/guarantee_credit/severe_disability/addition.yaml
@@ -10,7 +10,7 @@ metadata:
   period: week
   name: pc_severe_disability_addition
   label: Pension Credit severe disability addition
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   reference:
     - title: The Social Security Benefits Up-rating Order 2022
       href: https://www.legislation.gov.uk/uksi/2022/292/article/30/made#article-30-2-c
diff --git a/policyengine_uk/parameters/gov/dwp/pension_credit/savings_credit/threshold.yaml b/policyengine_uk/parameters/gov/dwp/pension_credit/savings_credit/threshold.yaml
@@ -28,7 +28,7 @@ COUPLE:
 metadata:
   unit: currency-GBP
   period: week
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   propagate_metadata_to_children: true
   reference:
     - title: The State Pension Credit Regulations 2002 reg. 7

diff --git a/policyengine_uk/parameters/gov/dwp/tax_credits/child_tax_credit/elements/child_element.yaml b/policyengine_uk/parameters/gov/dwp/tax_credits/child_tax_credit/elements/child_element.yaml
@@ -13,7 +13,7 @@ metadata:
   name: ctc_child
   label: "CTC child element"
   unit: currency-GBP
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   reference:
     - https://www.gov.uk/government/publications/rates-and-allowances-tax-credits-child-benefit-and-guardians-allowance/tax-credits-child-benefit-and-guardians-allowance
     - https://www.iser.essex.ac.uk/files/projects/UKMOD/EUROMOD_country_report.pdf#page=27
diff --git a/...engine_uk/parameters/gov/dwp/tax_credits/child_tax_credit/elements/dis_child_element.yaml b/...engine_uk/parameters/gov/dwp/tax_credits/child_tax_credit/elements/dis_child_element.yaml
@@ -19,7 +19,7 @@ metadata:
   unit: currency-GBP
   name: ctc_dis_child
   label: "CTC disabled child element"
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   reference:
     - https://www.gov.uk/government/publications/rates-and-allowances-tax-credits-child-benefit-and-guardians-allowance/tax-credits-child-benefit-and-guardians-allowance,
     - https://www.iser.essex.ac.uk/files/projects/UKMOD/EUROMOD_country_report.pdf#page=28
diff --git a/...uk/parameters/gov/dwp/tax_credits/child_tax_credit/elements/severe_dis_child_element.yaml b/...uk/parameters/gov/dwp/tax_credits/child_tax_credit/elements/severe_dis_child_element.yaml
@@ -19,7 +19,7 @@ metadata:
   unit: currency-GBP
   name: ctc_severe_dis_child
   label: "CTC severely disabled child element"
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   reference:
     - https://www.gov.uk/government/publications/rates-and-allowances-tax-credits-child-benefit-and-guardians-allowance/tax-credits-child-benefit-and-guardians-allowance,
     - https://www.iser.essex.ac.uk/files/projects/UKMOD/EUROMOD_country_report.pdf#page=28
diff --git a/policyengine_uk/parameters/gov/dwp/tax_credits/means_test/income_threshold.yaml b/policyengine_uk/parameters/gov/dwp/tax_credits/means_test/income_threshold.yaml
@@ -10,7 +10,7 @@ metadata:
   name: tc_income_threshold
   label: "Tax Credits income threshold"
   unit: currency-GBP
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   reference:
     - https://www.iser.essex.ac.uk/files/projects/UKMOD/EUROMOD_country_report.pdf#page=28
     - https://www.gov.uk/government/publications/rates-and-allowances-tax-credits-child-benefit-and-guardians-allowance/tax-credits-child-benefit-and-guardians-allowance
diff --git a/policyengine_uk/parameters/gov/dwp/tax_credits/means_test/income_threshold_CTC_only.yaml b/policyengine_uk/parameters/gov/dwp/tax_credits/means_test/income_threshold_CTC_only.yaml
@@ -7,7 +7,7 @@ values:
   2022-04-01: 17_005
 metadata:
   period: year
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   unit: currency-GBP
   name: ctc_income_threshold
   label: "CTC income threshold"

diff --git a/policyengine_uk/parameters/gov/dwp/tax_credits/working_tax_credit/elements/basic.yaml b/policyengine_uk/parameters/gov/dwp/tax_credits/working_tax_credit/elements/basic.yaml
@@ -25,7 +25,7 @@ metadata:
   unit: currency-GBP
   name: wtc_basic
   label: WTC basic element
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   reference:
     - title: The Working Tax Credit (Entitlement and Maximum Rate) Regulations 2002
       href: https://www.legislation.gov.uk/uksi/2002/2005/schedule/2

diff --git a/policyengine_uk/parameters/gov/dwp/tax_credits/working_tax_credit/elements/couple.yaml b/policyengine_uk/parameters/gov/dwp/tax_credits/working_tax_credit/elements/couple.yaml
@@ -25,7 +25,7 @@ metadata:
   unit: currency-GBP
   name: wtc_couple
   label: "WTC couple element"
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   reference:
     title: The Working Tax Credit (Entitlement and Maximum Rate) Regulations 2002
     href: https://www.legislation.gov.uk/uksi/2002/2005/schedule/2
diff --git a/policyengine_uk/parameters/gov/dwp/tax_credits/working_tax_credit/elements/disabled.yaml b/policyengine_uk/parameters/gov/dwp/tax_credits/working_tax_credit/elements/disabled.yaml
@@ -25,7 +25,7 @@ metadata:
   name: wtc_dis
   label: "WTC disability element"
   unit: currency-GBP
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   reference:
     title: The Working Tax Credit (Entitlement and Maximum Rate) Regulations 2002
     href: https://www.legislation.gov.uk/uksi/2002/2005/schedule/2
diff --git a/policyengine_uk/parameters/gov/dwp/tax_credits/working_tax_credit/elements/lone_parent.yaml b/policyengine_uk/parameters/gov/dwp/tax_credits/working_tax_credit/elements/lone_parent.yaml
@@ -25,7 +25,7 @@ metadata:
   unit: currency-GBP
   name: wtc_lone_parent
   label: "WTC lone parent element"
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   reference:
     title: The Working Tax Credit (Entitlement and Maximum Rate) Regulations 2002
     href: https://www.legislation.gov.uk/uksi/2002/2005/schedule/2
diff --git a/...gine_uk/parameters/gov/dwp/tax_credits/working_tax_credit/elements/severely_disabled.yaml b/...gine_uk/parameters/gov/dwp/tax_credits/working_tax_credit/elements/severely_disabled.yaml
@@ -25,7 +25,7 @@ metadata:
   unit: currency-GBP
   name: wtc_severe_dis
   label: "WTC severe disability element"
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   reference:
     title: The Working Tax Credit (Entitlement and Maximum Rate) Regulations 2002
     href: https://www.legislation.gov.uk/uksi/2002/2005/schedule/2
diff --git a/policyengine_uk/parameters/gov/dwp/tax_credits/working_tax_credit/elements/worker.yaml b/policyengine_uk/parameters/gov/dwp/tax_credits/working_tax_credit/elements/worker.yaml
@@ -22,7 +22,7 @@ values:
 metadata:
   period: year
   unit: currency-GBP
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   reference:
     title: The Working Tax Credit (Entitlement and Maximum Rate) Regulations 2002
     href: https://www.legislation.gov.uk/uksi/2002/2005/schedule/2
diff --git a/policyengine_uk/parameters/gov/dwp/universal_credit/elements/carer/amount.yaml b/policyengine_uk/parameters/gov/dwp/universal_credit/elements/carer/amount.yaml
@@ -13,7 +13,7 @@ metadata:
   unit: currency-GBP
   name: UC_carer_element
   label: "UC carer element"
-  uprating: calibration.uprating.september_cpi
+  uprating: gov.benefit_uprating_cpi
   reference:
     - name: The Universal Credit Regulations 2013 reg. 36
       href: https://www.legislation.gov.uk/uksi/2013/376/regulation/22/2021-04-12