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Corporation tax — Rates

Company rate 1 Profits 2024/25 2023/24
Small rate Up to £50,000 19% 19%
Marginal rate £50,001 – £250,000 26.5% 26.5%
Main rate Over £250,000 25% 25%
  1. The UK government has devolved power to the Northern Ireland Assembly to set a Northern Ireland rate of corporation tax to apply to certain trading income once the Northern Ireland Executive has demonstrated to the UK government that its finances are on a sustainable footing, and the Northern Ireland Assembly sets the rate of corporation tax to be applied.