An Asian supermarket owner and one of gaming tycoon Richard Quirke's companies are among the top payers in the latest tax defaulters list.
Ji Rong Zheng, who ran a foodstore on Parnell Street, Dublin, faced fines and penalties of 1.59 million euros for under-declaration of income tax and VAT.
The Dublin Pool and Juke Box Co, of which Mr Quirke is a director with his wife Anne, ran up a bill of 803,485 euros for under-declaration of VAT.
The businessman is also behind the arcade Dr Quirkey's Good Time Emporium on O'Connell Street and was a major backer of plans to build a super-casino in Tipperary.
The Revenue said that in the three months to March its officers made settlements worth 20 million euros with 126 tax defaulters, six of which exceeded 500,000 euros.
The top end of the list also included Ivan Diver, from Coolcholly, Ballyshannon, Co Donegal, listed as a retired employee, who has been hit with a tax bill for 1.5 million euros.
He avoided tax by under-declaration of income tax and capital gains tax and he was also investigated for breaking tax rules in relation to offshore assets and the single-premium insurance investigation.
Revenue also said that of the 126 cases it settled, seven, totalling more than 3 million euros, relate to investigations into offshore funds.