Since January 1st, 2006 to October 2021 companies in the IFSC paid tax at a corporation tax rate of 12.5%. Following the October 2021 budget this will now only apply to firms making less than €750m a year.
(The Irish Government agreed that Ireland will sign up to a global deal on corporate tax reform that will set a minimum rate of 15 per cent for large companies. The new minimum global tax rate will be implemented in 2023)