Michael Noonan (Limerick City, Fine Gael) | Oireachtas source

A total of 80% of the penalty interest due on the tax outstanding must be paid, as well as the tax. The tax must be paid in full and 80% of the interest. Only 20% does not have to be paid. It is strictly time measured. The purpose of it is to enable the Revenue Commissioners to take a proceeding successfully against people for tax evasion through tax avoidance measures.