The Revenue Commissioners (Irish: Na Coimisinéirí Ioncaim), usually referred to simply as Revenue, is the Irish Government agency responsible for customs, excise, taxation and related matters. Though Revenue can trace itself back to predecessors (with the Act of Union 1800 amalgamating its forerunners with HM Customs and Excise in the United Kingdom), the current organisation was created for the independent Irish Free State on 21 February 1923 by the Revenue Commissioners Order, 1923 which established the Revenue Commissioners to carry out the functions that the Commissioners of Inland Revenue and the Commissioners of Customs and Excise had carried out in the Free State prior to independence. The Revenue Commissioners are responsible to the Minister for Finance.