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Corporation tax — Rates

Company rate 1, 2 Profits Effective rate to 31/03/19 Effective rate to 31/03/18
Small Up to £300,000 19% 19%
Marginal £300,001 to £1,500,000 19% 19%
Main Above £1,500,000 19% 19%
  1. The rate of corporation tax will be reduced to 17% from 1 April 2020.
  2. It is proposed that from 1 April 2018 the rate of corporation tax in Northern Ireland will be reduced to 12.5%.