Issues

• ons_demographics emits three target names twice, and one copy of ons/uk_population is 1,000 times too small

  PolicyEngine/policyengine-uk-data#605 · Filter by author MaxGhenis opened on Oct 16, 2026

• Builds of the same code calibrate to two different weight sets

  PolicyEngine/policyengine-uk-data#598 · Filter by author MaxGhenis opened on Oct 15, 2026
  1

• Scottish council tax targets change with whether a download succeeds

  PolicyEngine/policyengine-uk-data#596 · Filter by author MaxGhenis opened on Oct 15, 2026

• Nineteen calibration targets have no signal on 1.58.1: £1m+ income bands, ages 85-90 and others

  PolicyEngine/policyengine-uk-data#593 · Filter by author MaxGhenis opened on Oct 15, 2026
  2

• NI local UC targets count claimants but are used as households, and Ards and North Down has no LA target

  PolicyEngine/policyengine-uk-data#590 · Filter by author MaxGhenis opened on Oct 15, 2026

• Eight OBR benefit targets cover Great Britain but are scored on every UK household

  PolicyEngine/policyengine-uk-data#588 · Filter by author MaxGhenis opened on Oct 14, 2026

• Packaged OA crosswalk: uniform Scottish OA populations, and no OAs for the four 2023 unitary authorities

  PolicyEngine/policyengine-uk-data#587 · Filter by author MaxGhenis opened on Oct 14, 2026

• NHS usage imputation: the 80+ roll-up never writes back, so 85+ costs drop out and the 80+ rate is understated

  PolicyEngine/policyengine-uk-data#586 · Filter by author MaxGhenis opened on Oct 14, 2026

• Capital gains weight split: the loss fits a different share with gains from the weights it returns

  PolicyEngine/policyengine-uk-data#585 · Filter by author MaxGhenis opened on Oct 14, 2026

• obr/council_tax target includes NI domestic rates and the accruals adjustment, but the model side is GB council tax only

  PolicyEngine/policyengine-uk-data#584 · Filter by author MaxGhenis opened on Oct 14, 2026

• obr/pip target is OBR's DLA and PIP total but is scored against PIP alone

  PolicyEngine/policyengine-uk-data#583 · Filter by author MaxGhenis opened on Oct 14, 2026

• obr/esa ("Incapacity benefits") leaves out incapacity benefit, SDA and the incapacity part of income support

  PolicyEngine/policyengine-uk-data#582 · Filter by author MaxGhenis opened on Oct 14, 2026
  1

• Released data is calibrated with an older policyengine-uk than it's served with: national fit within 10% falls from 87.0% to 73.6%

  PolicyEngine/policyengine-uk-data#581 · Filter by author MaxGhenis opened on Oct 14, 2026
  1

• Northern Ireland households get no Output Area geography, so NI constituencies and local authorities filter to zero households

  PolicyEngine/policyengine-uk-data#580 · Filter by author MaxGhenis opened on Oct 14, 2026

• Split War Widow's Pension (FRS code 9) out of bsp_reported

  PolicyEngine/policyengine-uk-data#578 · Filter by author vahid-ahmadi opened on Oct 12, 2026

• Construct statutory paternity pay from the FRS (sppadj)

  PolicyEngine/policyengine-uk-data#575 · Filter by author MaxGhenis opened on Oct 12, 2026

• 16 households have a negative vehicle count on 1.58.0 (WAS missing-value code in the wealth imputation)

  PolicyEngine/policyengine-uk-data#574 · Filter by author MaxGhenis opened on Oct 12, 2026

• Capital gains on 1.58.0 total £39bn against HMRC's £65.9bn, and the test allows a 50% miss

  PolicyEngine/policyengine-uk-data#570 · Filter by author MaxGhenis opened on Oct 11, 2026
  1

• Private school attendance: store the imputation, impute over school ages, follow the pupil trend

  PolicyEngine/policyengine-uk-data#568 · Filter by author MaxGhenis opened on Oct 11, 2026

• OBR VAT target includes VAT on private school fees, which policyengine-uk now models separately

  PolicyEngine/policyengine-uk-data#567 · Filter by author MaxGhenis opened on Oct 11, 2026

• 76 households have negative VAT on 1.58.0

  PolicyEngine/policyengine-uk-data#565 · Filter by author MaxGhenis opened on Oct 11, 2026

• SDLT calibration target includes corporate SDLT, which policyengine-uk adds separately

  PolicyEngine/policyengine-uk-data#564 · Filter by author MaxGhenis opened on Oct 11, 2026

• Calibration leaves the teenage age mix and education status without direct targets: 35% too many 16-year-olds, half the 18- and 19-year-olds

  PolicyEngine/policyengine-uk-data#563 · Filter by author MaxGhenis opened on Oct 10, 2026
  1

• FRS benefit units keep some qualifying young persons apart from the adults responsible for them

  PolicyEngine/policyengine-uk-data#562 · Filter by author MaxGhenis opened on Oct 10, 2026
  2

• Approved training is never set: the FRS build reads a train column that no FRS release has

  PolicyEngine/policyengine-uk-data#560 · Filter by author MaxGhenis opened on Oct 10, 2026