Minister for Finance Michael Noonan has said that no details have been decided over the implementation of a property tax.
Mr Noonan said that he had a preferred method that he would share with the Cabinet.
He said the only thing that is now certain is that there will be a tax and it will be collected through the Revenue Commissioners.
Sinn Féin spokesperson Pearse Doherty has said that his party opposes a property tax.
Mr Doherty said that Sinn Féin favours the introduction of a wealth tax instead.
He claimed that €800m would be raised by the introduction of this tax.
Mr Doherty said that the Troika made it clear to his party that aspects of the bailout could be renegotiated as long as revenue targets were met.
Separately, two leading charities have said any property tax must be based on income and ability to pay rather than on house size or market value.
Gerard Scully of Age Action Ireland said many older people own valuable properties but must survive on very low incomes.
A spokesperson for St Vincent de Paul said the organisation would fundamentally disagree with a tax based only on market value and the property tax must take account of householders’ ability to pay.
Meanwhile, Mr Noonan said that Fianna Fáil had plenty of opportunities to publish a letter from former ECB president Jean-Claude Trichet when it was in government.
He said the Government has decided that all documents will be provided when an investigation into the banking collapse is carried out.
Mr Doherty called for the immediate release of the letter from the ECB to former finance minister Brian Lenihan, which reportedly left Ireland with no choice but to accept a bailout.
