PolicyLens

Methodology note

Cut household energy taxes: calculation note

Assumptions behind the Cut household energy taxes scenario. Implementation detail is incomplete, so uncertainty is explicit.

View main policy page: Cut household energy taxes

Central fiscal result

+GBP 7.0bn - Net fiscal impact in 2027-28

Low case: +GBP 3.0bn. High case: +GBP 14.0bn. Positive numbers are fiscal costs or borrowing pressure. Negative numbers are Exchequer savings or receipts.

Scenario and baseline

  • Domestic energy VAT and policy levies are removed or taxpayer-funded.
  • Ofgem price cap provides the household bill scale.
  • Reform's current page gives direction, not a full schedule.
  • No wholesale energy-price change is modelled.

Affected population

  • Affected units are UK domestic energy households.
  • The cap is GBP 1,641 for a typical dual-fuel bill.
  • Low-income households benefit if pass-through reaches bills.
  • Energy suppliers face transition and billing changes.

Gross impact

  • Central cost assumes roughly GBP 7bn of receipts or levy funding lost.
  • Low case cancels some schemes rather than replacing them fiscally.
  • High case includes broader levy replacement and compensation.
  • No reliable growth dividend is netted off.

Fiscal build-up, central case

  • Domestic energy VAT loss: +GBP 2.5bn
  • Policy levy replacement: +GBP 4.5bn
  • Administration and billing changes: +GBP 0.1bn
  • Demand and tax offset: -GBP 0.1bn

Central net impact: +GBP 7.0bn in 2027-28.

Behaviour and pass-through

  • Low case assumes partial scheme cancellation rather than taxpayer funding.
  • Central case assumes high supplier pass-through to household bills.
  • High case includes compensation for contracts and wider levy replacement.
  • Lower bills may raise energy demand and weaken efficiency incentives.

Phasing

  • 2026-27: +GBP 1.0bn. Preparation or partial implementation.
  • 2027-28: +GBP 7.0bn. Main scenario year.
  • 2028-29: +GBP 7.5bn. Behaviour and pass-through develop.
  • 2029-30: +GBP 8.0bn. Steady-state uncertainty persists.

Main source groups

  • S1: Reform page and Contract define energy-tax direction.
  • S2: Ofgem price cap provides household bill scale.
  • S3: OBR public-finance data checks fiscal size.
  • S4: Carbon-tax and climate-economics studies inform emissions and long-run external-cost assumptions.
  • S5: No official Reform levy schedule was found.