Issues

• Project existing student loan plans across future cohort boundaries

  PolicyEngine/policyengine-uk#2675 · Filter by author juaristi22 opened on Oct 25, 2026

• Reported Council Tax Reduction is never uprated, so it covers less of the bill each projected year

  PolicyEngine/policyengine-uk#2674 · Filter by author juaristi22 opened on Oct 25, 2026
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• Fiscal partition: domestic_rates note gives only the council tax placement of NI domestic rates

  PolicyEngine/policyengine-uk#2662 · Filter by author MaxGhenis opened on Oct 25, 2026

• Add property tests and full-person fixtures for the Housing Benefit family premium

  PolicyEngine/policyengine-uk#2660 · Filter by author MaxGhenis opened on Oct 25, 2026
  

• is_uc_eligible: reg 60A tests Pension Credit entitlement; the model reads receipt

  PolicyEngine/policyengine-uk#2659 · Filter by author MaxGhenis opened on Oct 25, 2026
  

• Aggregate impact: record which small-cell condition withheld a reform-year

  PolicyEngine/policyengine-uk#2654 · Filter by author MaxGhenis opened on Oct 25, 2026

• benefit_cap_reduction reports the reg. 81 amount, which can exceed the Universal Credit award, not the amount the cap removes

  PolicyEngine/policyengine-uk#2646 · Filter by author MaxGhenis opened on Oct 24, 2026

• uprate_student_loan_plans relabels existing holders in 2025 against SLC plan rules (Plan 4, NI Plan 1, Postgraduate Loans, pre-2006 write-off)

  PolicyEngine/policyengine-uk#2636 · Filter by author vahid-ahmadi opened on Oct 24, 2026
  1

  

• VAT survey coverage was derived on an older Microcosm cut and puts VAT about 9% above receipts on the current certified cuts

  PolicyEngine/policyengine-uk#2633 · Filter by author MaxGhenis opened on Oct 24, 2026

• Machine Games Duty cannot be set by premises, and gambling stakes stay in the VAT base

  PolicyEngine/policyengine-uk#2622 · Filter by author juaristi22 opened on Oct 23, 2026

• Income Support takes the earnings disregard off non-earnings income (statutory pay, pensions, benefits)

  PolicyEngine/policyengine-uk#2621 · Filter by author MaxGhenis opened on Oct 23, 2026

• household_wealth_decile: break ties by a fixed hash of household_id, and give every non-negative household a decile of at least 1

  PolicyEngine/policyengine-uk#2617 · Filter by author PavelMakarchuk opened on Oct 23, 2026

• Aggregate checker: undeclared tax heads can still hide a £1 containment at high baselines (level-based slack)

  PolicyEngine/policyengine-uk#2606 · Filter by author MaxGhenis opened on Oct 23, 2026

• Reuse a prepared current-law baseline when a scenario is constructed (rebased construction 1.45x; generate path ~20x slower)

  PolicyEngine/policyengine-uk#2605 · Filter by author MaxGhenis opened on Oct 23, 2026

• Complete Childcare Grant income assessment and academic-year treatment

  PolicyEngine/policyengine-uk#2604 · Filter by author juaristi22 opened on Oct 23, 2026

• Integer arrays passed to enum inputs are read as 0-based positions with no range check

  PolicyEngine/policyengine-uk#2602 · Filter by author vahid-ahmadi opened on Oct 23, 2026
  

• Alcohol and tobacco quantity inputs are not uprated, so later years charge duty on base-year volumes

  PolicyEngine/policyengine-uk#2596 · Filter by author juaristi22 opened on Oct 23, 2026

• Review and refresh the household casino-duty incidence proxy

  PolicyEngine/policyengine-uk#2587 · Filter by author juaristi22 opened on Oct 23, 2026

• Preserve per-unit missingness for UC advance cash inputs

  PolicyEngine/policyengine-uk#2578 · Filter by author MaxGhenis opened on Oct 22, 2026
  

• Add overseas and other real estate components and correct household land accounting

  PolicyEngine/policyengine-uk#2577 · Filter by author MaxGhenis opened on Oct 22, 2026

• Income-related ESA is paid alongside State Pension Credit (WRA 2007 s.1(3)(c), Sch 1 para 6(1)(c)-(d))

  PolicyEngine/policyengine-uk#2565 · Filter by author MaxGhenis opened on Oct 22, 2026
  

• Abolish income-related ESA from 1 July 2026 (NI 1 October 2026)

  PolicyEngine/policyengine-uk#2562 · Filter by author MaxGhenis opened on Oct 22, 2026

• non_primary_residence_wealth_tax taxes gross wealth, though documented as net wealth

  PolicyEngine/policyengine-uk#2560 · Filter by author MaxGhenis opened on Oct 22, 2026
  

• Treat a close relative who pays board as a non-dependant (reg 9(3)(a)) once the model has a relationship input

  PolicyEngine/policyengine-uk#2559 · Filter by author MaxGhenis opened on Oct 22, 2026

• Income tax reductions offset the Step 7 charges (HICBC, annual allowance charge)

  PolicyEngine/policyengine-uk#2544 · Filter by author MaxGhenis opened on Oct 20, 2026