Opposition parties have said the Taoiseach's interview with RTÉ News has raised more questions than it answered.
In the interview, Bertie Ahern revealed that a group of friends made two separate payments to him in 1993 and 1994 totalling IR£39,000.
Fine Gael leader Enda Kenny said it was a 'very grave' situation for Mr Ahern, and that questions on ethics and tax arose as a result of the interview.
Labour leader Pat Rabbitte said it was 'stretching credulity' to describe the payment as a loan. He claimed that that it in reality it was a gift which raises taxation questions.
Green Party leader Trevor Sargent said Mr Ahern had misled the Irish people by saying the reported figure of €50,000 to €100,000 was 'off the wall', when in fact it was accurate.
Sinn Féin's Sean Crowe said the amount involved was very large, and could have bought a house in 1993.
However, there has been no response to the interview from the Progressive Democrats.