Convicted criminal Martin Foley, also known as the Viper, has been refused leave to appeal to the Supreme Court a tax and interest judgment of almost €750,000.
The 66-year-old from Dublin had been ordered to pay the Criminal Assets Bureau a tax and interest bill of €738,449.270 for the years 1993-1994 and 1999-2000.
Foley claimed he had been "taken by surprise" by the proceedings and was prejudiced because of an "inordinate and inexcusable delay".
The Court of Criminal Appeal ruled last November he had "no case" and dismissed his appeal.
Today the Supreme Court refused him leave to appeal that decision.
The court found Foley's appeal is "clearly not sustainable" and that issues he claimed were of general public importance "simply do not fall for consideration."
CAB will now seek to enforce the order and collect the outstanding tax, interest and penalties.
Foley has over 40 criminal convictions.
He has been shot several times and survived a number of attempts on his life.
He was also a member of the late Martin Cahill's criminal gang.
Cahill who was known as 'The General' was shot dead in 1993.
Foley was rescued by gardaí after he was abducted by the IRA in 1984 but refused to co-operate with gardaí.
More recently he set up a debt collection agency Viper Debt Recovery and Repossession Services.
