Issues

• test_built_total_gains fails on reduced (TESTING=1) builds of main

  PolicyEngine/policyengine-uk-data#535 · Filter by author MaxGhenis opened on Oct 4, 2026

• Weekly FRS amounts are annualised with 365.25/7 but policyengine-uk's weekly rules divide by 52

  PolicyEngine/policyengine-uk-data#531 · Filter by author MaxGhenis opened on Oct 3, 2026

• Set is_blind from the FRS blind registration flag (SPCREG1)

  PolicyEngine/policyengine-uk-data#523 · Filter by author MaxGhenis opened on Oct 2, 2026
  1

• Northern Ireland domestic rates: low level and district-only OBR target

  PolicyEngine/policyengine-uk-data#520 · Filter by author MaxGhenis opened on Oct 2, 2026

• Set the mixed-age couple Pension Credit saving at build time, from survey-year ages

  PolicyEngine/policyengine-uk-data#519 · Filter by author MaxGhenis opened on Oct 2, 2026

• BRMA imputation draws Scottish, Welsh and NI households from copies of English rent lists

  PolicyEngine/policyengine-uk-data#515 · Filter by author MaxGhenis opened on Oct 2, 2026

• Mark the benefit units that share their household's rent

  PolicyEngine/policyengine-uk-data#511 · Filter by author MaxGhenis opened on Oct 1, 2026

• Move SUBRENT from property_income to sublet_income, after policyengine-uk reads sublet_income

  PolicyEngine/policyengine-uk-data#508 · Filter by author MaxGhenis opened on Oct 1, 2026
  2

• create_spi output cannot be simulated: unknown regions crash policyengine-uk, and Scottish taxpayer status ignores SCOT_TXP

  PolicyEngine/policyengine-uk-data#505 · Filter by author MaxGhenis opened on Oct 1, 2026

• SPI income imputation gives every child in a synthetic household employment income (£67bn on under-16s)

  PolicyEngine/policyengine-uk-data#504 · Filter by author MaxGhenis opened on Oct 1, 2026

• Map the FRS Adult Disability Payment and Child Disability Payment codes (117, 118, 121, 122)

  PolicyEngine/policyengine-uk-data#500 · Filter by author MaxGhenis opened on Oct 1, 2026

• SPI-synthetic rows carry imputed reported council tax reduction on every person

  PolicyEngine/policyengine-uk-data#497 · Filter by author MaxGhenis opened on Sep 30, 2026

• council_tax is the FRS bill net of council tax reduction, but the model uses it as the gross liability

  PolicyEngine/policyengine-uk-data#496 · Filter by author MaxGhenis opened on Sep 30, 2026

• Capital stocks disagree with income from capital, so UC capital tests miss rent, share and savings holders

  PolicyEngine/policyengine-uk-data#495 · Filter by author MaxGhenis opened on Sep 30, 2026
  1

• Enhanced FRS 2024-25 State Pension is £11.6bn below the FRS's own admin-linked estimate

  PolicyEngine/policyengine-uk-data#493 · Filter by author MaxGhenis opened on Sep 30, 2026

• Move working-age legacy-benefit reporters onto UC at Move to UC claim rates (stranded after HB, tax credit, IS and JSA closure)

  PolicyEngine/policyengine-uk-data#492 · Filter by author MaxGhenis opened on Sep 30, 2026
  1

• Take-up flags are not re-anchored after stage-2 imputation, so reported UC, PC and Child Benefit no longer imply take-up

  PolicyEngine/policyengine-uk-data#491 · Filter by author MaxGhenis opened on Sep 30, 2026

• Median income runs 8-10% above HBAI FYE 2025; add an HBAI validation suite

  PolicyEngine/policyengine-uk-data#487 · Filter by author MaxGhenis opened on Sep 29, 2026

• Supply is_hbai_dependent_child from the FRS and move targets and imputations off the deprecated is_child/is_adult

  PolicyEngine/policyengine-uk-data#486 · Filter by author MaxGhenis opened on Sep 29, 2026

• What price basis do energy outputs carry after the Q2 2026 anchor?

  PolicyEngine/policyengine-uk-data#485 · Filter by author vahid-ahmadi opened on Sep 22, 2026

• LA Band D target is silently dropped now, and will compute as a sum-vs-level mismatch once council_tax_band_d_amount exists

  PolicyEngine/policyengine-uk-data#483 · Filter by author vahid-ahmadi opened on Sep 15, 2026
  1

• Disability thresholds accept only the survey year's rate: a full-year reporter of the previous April's rate loses the enhanced flag and drops a category band

  PolicyEngine/policyengine-uk-data#481 · Filter by author juaristi22 opened on Sep 4, 2026

• Rail, bus and fuel calibrations run after base-year materialisation, so the shipped file is not uprate-invertible

  PolicyEngine/policyengine-uk-data#479 · Filter by author vahid-ahmadi opened on Sep 3, 2026
  1

  

• childcare_expenses has no calibration target and sits at the top of the plausible range

  PolicyEngine/policyengine-uk-data#471 · Filter by author vahid-ahmadi opened on Aug 27, 2026
  3

• Tax-Free Childcare spending is ~1.9x the repo's own declared calibration target, while caseload is on target

  PolicyEngine/policyengine-uk-data#470 · Filter by author vahid-ahmadi opened on Aug 27, 2026
  2