2017/18
2016/17

  • Corporation tax rates are set for each Financial Year. A Financial Year runs from 1 April to the following 31 March.
  • If the accounting period of a company straddles the 31 March, the profits are apportioned on a time basis to each Financial Year.
  • The Northern Ireland Executive has committed to setting the rate of corporation tax at 12.5% in April 2018 if the Northern Ireland Executive demonstrates its finances are on a sustainable footing.

Year to 31.3.18

Rate %
All profits 19
  • Corporation tax rates are set for each Financial Year. A Financial Year runs from 1 April to the following 31 March.
  • If the accounting period of a company straddles the 31 March, the profits are apportioned on a time basis to each Financial Year.

Year to 31.3.17

Rate %
All profits 20