PolicyLens

Conservative - Energy tax

Zero-rate household energy VAT

Abolish VAT on household energy bills for three years, then review continuation.

Last updated: May 2026.

Read the policy-specific methodology note

Bill baseline

Domestic energy is subject to reduced-rate VAT. The scenario zero-rates household energy for three years, lowering bills if suppliers pass through the tax cut.

  • Households gain through lower bills.
  • The Exchequer loses VAT receipts.
  • High-use households gain more in cash terms.

Core trade-offs

The policy gives quick bill relief but is poorly targeted by income. It also weakens price incentives to reduce energy use unless paired with targeted insulation or social-tariff support.

  • Households gain visible bill relief.
  • Treasury loses a stable receipt.
  • Benefits are not tightly targeted.

Fiscal impact by 2028-29

+GBP 1.5bn to +GBP 3.5bn. Central estimate: +GBP 2.4bn.

  • Positive numbers mean net fiscal cost; negative numbers mean Exchequer savings.
  • Main cost is lost VAT on energy bills.
  • Higher disposable income recovers small indirect receipts.
  • Relief is broad rather than targeted.
  • This is not an official costing.

Economic impact by 2028-29

  • Jobs: Little direct jobs effect; household spending may shift to other sectors.
  • Wages: No wage effect; real disposable income rises for households.
  • Prices: Energy bills fall if VAT cuts pass through; CPI temporarily lower.
  • GDP / productivity: Small demand boost, but weak targeting and no productivity gain.

Assessment

Zero-rating household energy VAT is administratively simple and visible. But it is expensive relative to targeted help, gives larger cash gains to higher-consuming households, and does little to improve energy efficiency.

Confidence: Medium. VAT baseline is clear; pass-through and wholesale-price interactions create uncertainty.

Main risks

  • Poor targeting: High-income and high-consumption households receive larger cash benefits.
  • Energy demand: Lower prices weaken incentives to reduce consumption.
  • Temporary cliff: A three-year cut creates a later bill rise unless funded permanently.

Safeguards

  • Compare with targeted bill support.
  • Require supplier pass-through monitoring.
  • Pair with insulation for low-income homes.

Academic evidence

Benzarti, Carloni, Harju and Kosonen, Quarterly Journal of Economics, 2020

VAT incidence asymmetry

VAT rises and cuts need not pass through symmetrically to consumer prices.

Relevant to household energy VAT and private-school-fee VAT reversals.

What Goes Up May Not Come Down (2020)

Mirrlees and review team, Institute for Fiscal Studies and Oxford University Press, 2011

Tax design principles

Efficient tax systems use broad bases, coherent rates and few arbitrary reliefs.

Frames the efficiency trade-off when tax cuts are not matched by credible funding.

Tax by Design: The Mirrlees Review (2011)

UK government evidence

Office for Budget Responsibility, 2026

OBR fiscal forecast

The OBR forecast sets the macro, borrowing and receipts baseline used for broad fiscal context.

Prevents treating tax cuts or spending changes as self-financing.

Economic and fiscal outlook: March 2026 (2026)

Sources

Other Conservative policies

PolicyLens estimates are illustrative and should not be treated as official costings.