Corporation tax — Rates
| Company rate 1 | Profits | Effective rate to 31/03/21 | Effective rate to 31/03/20 |
|---|---|---|---|
| Small | Up to £300,000 | 19% | 19% |
| Marginal | £300,001 to £1,500,000 | 19% | 19% |
| Main | Above £1,500,000 | 19% | 19% |
- 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. Although it has long been proposed that the rate of corporation tax in Northern Ireland will be reduced to 12.5%, this cannot be achieved until 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.