Minister for Housing James Browne and Minister for Arts Patrick O'Donovan have confirmed that they are among ten serving ministers who have not yet entered into a repayment plan in relation to a miscalculation of pension deductions.
Both have said they are engaging on the matter, seeking further clarifications.
A spokesperson for Mr Browne insisted he has no issue with repaying, but he is currently still seeking clarifications.
Separately, a spokesperson for Mr O'Donovan said he was enaging with the National Shared Services Office (NSSO) with a view to finalising the matter.
It is understood that Taoiseach Micheál Martin resolved issues with the NSSO some months ago.
There are also understood to be no outstanding issues relating to Tánaiste Simon Harris.
Both Minister for Transport Darragh O'Brien and Minister for Public Expenditure Jack Chambers have confirmed that they are in repayment plans.
Minister for Social Protection Dara Calleary also confirmed that he has a payment plan in place as does Minister for Enterprise Peter Burke and Minister for Foreign Affairs Helen McEntee.
It is understood that Minister for Further and Higher Education James Lawless has fully repaid his overpayment.
Some cabinet ministers did not face any issue as there had not been an overpayment for them.
These included Minister for Children Norma Foley, Minister for Justice Jim O'Callaghan and Minister for Agriculture Martin Heydon.
The issue around incorrect pension deductions first came to light last June.
The error was a miscalculation by the NSSO and related to the fact that ministers were gifting a portion of their salary back to the State. It is understood pension contributions continued on the basis of the pre-salary cut amounts.
However, the Dáil heard that ten serving ministers have not taken steps to repay money they received in error some seven months after the issue emerged.
There are also 17 former ministers who have not yet put in place a repayment plan following a miscalculation of their pension deductions.
Sinn Féin Spokesperson on Finance Pearse Doherty said there are amounts of up to €30,000 involved.
"It is the public's money ... ministers are holding out. It is absolutely unacceptable," Mr Doherty said.
In his response Mr Burke said the overpayments were the result of errors made by the NSSO.
He stated that the ten ministers in question are seeking clarifications from the NSSO on the amount that they have to repay.
"This is not the fault or any politician or any former civil servant," Mr Burke said.
Mr Burke warned any minister who does not repay money they wrongly received following errors in their pension deductions, that they will not be able to get their pension unless the money is paid back.
