Autumn Budget 2025 summary: What you need to know

After months of unprecedented and exhausting speculation, policy kite-flying and last-minute U-turns that rattled the markets, Rachel Reeves has finally unveiled her much-anticipated second Budget, delivered as late in the year as politically possible. 

She faced a tough backdrop: stagnant economic growth, persistently high inflation, rising unemployment and interest rates that continue to squeeze both households and businesses.

With welfare spending set to rise and the fiscal black hole widening, Reeves opted for a mix of stealth and structural tax measures to raise revenue. The Budget leans heavily on frozen thresholds, higher property-related taxes and a renewed focus on wealth taxation.

Most notably, the Chancellor abandoned her planned increase in income tax rates, which would have been the first rate rise since 1975, choosing instead to rely on quieter but no less costly tax rises to balance the books.

To avoid a spike in inflation, the Chancellor will continue the freeze on fuel duty (but only until 2026) and retain the 5p cut in the duty. However, she will increase the national living wage from £12.21 to £12.71 (as suggested by the Low Pay Commission), which will feed its way through to price rises and impact jobs in the wake of the April 2025 rise in employers’ national insurance.

The two-child benefit cap will be removed from April 2026, and welfare benefits will rise in line with inflation

This and other spending announcements will be paid for by freezing income tax thresholds, taxing pension contributions, charging electric cars per mile, a mansion tax for expensive properties, a gambling tax, a tourism tax, etc, A veritable mixture of measures to add more complexity to the tax system.

With all the measures announced today, the question is will the Chancellor be back again this time next year with more tax rises that a simple income tax rate rise would have solved?

See Treasury Budget 2025 page and HMRC’s Budget 2025 tax related documents.

Brief recap – key changes previously announced:

What are the key measures announced in the Autumn Budget 2025?

Taxes

Spending

  • Welfare spending will be £16bn higher by 2029/30 in the wake of the Budget, the OBR has forecast
  • Two-child benefit cap lifted from April 2026
  • Greater resources to crack down on tax and benefits fraud
  • More funds for devolved governments
  • More sanctions on Russian assets
  • National debt will rise to above £3 trillion for the first time.
  • Rail fares frozen
  • State pension to rise under the triple lock
  • £150 average cut off energy bills from April 2026 (removing green levies)

Autumn Budget 2025 resources

Tax Tables 2026/27

Links to HM Treasury pages

Finance Bill 2025/26

Economic background to the Budget