The Justice Minister Charlie Flanagan is today proposing €42m in extra funding to cover Garda overtime for this year.
He is to introduce the supplementary estimate following a controversy over pre-Christmas overtime in Dublin.
Last night he told the Seanad that a misunderstanding had led to senior Gardaí announcing the ban.
Minister Flanagan says December's overtime comes out of the 2018 Budget.
He said: "Budget 2018 provides for just under €100m in overtime next year, so I'm at a loss to comprehend the position by some commentators that there is no money to pay for Garda overtime in the run-up to Christmas."