Corporation tax — Rates
| Company rate 1 | Profits | 2025/26 | 2024/25 |
|---|---|---|---|
| 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% |
- 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.