The European Commission’s ruling that Apple should pay Ireland €13 billion (£11.1 billion) in back taxes is set to be formally disputed by the Irish government.

Finance minister Michael Noonan said on Tuesday that Dublin would challenge the judgment on Wednesday.

In August, competition officials in Brussels concluded that the so-called sweetheart tax deals Apple received from Ireland constituted illegal state aid. The commission’s antitrust chief Margrethe Vestager said at the time: “Member states cannot give tax benefits to selected companies—this is illegal under EU state aid rules.”