Fine Gael has accused the Taoiseach of 'dodging' a number of key questions about his personal finances.
Senator Eugene Regan said Bertie Ahern had still to explain statements he made to the Dáil about his finances in 2006 and how a donation from NCB stockbrokers was lodged to his personal account.
He also said Mr Ahern needs to explain how he still does not have a tax clearance certificate 15 months after the Revenue Commissioners contacted him about his tax liabilities.
Earlier Mr Ahern said that to the best of his knowledge his tax affairs are in order although the Revenue Commissioners might not make a final determination on the issue until the Mahon Tribunal had reported.
Speaking on the This Week programme on RTÉ, Mr Ahern said the leaking of his private correspondence with the Revenue represented a new low in Irish life.
He told RTÉ that the documents had not come from the Revenue Commissioners but had been leaked from correspondence circulated by the Tribunal and their disclosure represented a very serious issue. Asked whether the gardaí should investigate, he said that it certainly should be looked at.
The Taoiseach said he had made a voluntary disclosure and lodged money on account with the tax authorities. It was his advice that the balance would show that the Revenue owed him money but that it would be some time before they made a final decision.
He also insisted that his tax affairs had been in order after the 2002 election as well despite suggestions from Fine Gael that donations made to him then might not have been declared.
Mr Ahern told the This Week programme that he did not feel damaged by the tribunal but that dealing with the same issue for the last eight years had created stress, tension and annoyance.
He repeated that he would be found innocent of the only charge against him: that he had taken money from Cork developer Owen O'Callaghan.
