The Irish government is expected to announce plans to invest even more money in the country's struggling banking sector later.
The Irish government will inject another 8.3bn euros (£7.4bn, $9.9bn) into the nationalised Anglo Irish bank, it has been announced.
The plans are expected to include increasing the government's stakes in a number of Irish banks.
No new government money will be invested in Bank of Ireland, however, which will raise money privately, as will Allied Irish Banks.
The Irish financial regulator has announced that one of them - Allied Irish Banks - needs 7.4bn euros (£6.6bn, $10bn) of fresh capital.
A further 2.6bn euros will also be invested in the Irish Nationwide Building Society.
The Bank of Ireland needs to find 2.66bn euros, the regulator added.
Irish banks have struggled to recover from 2008's financial crisis.
Details of further government investment in the banks have not yet been announced.
Last year's government bail-out means that Irish taxpayers currently own 16% of Bank of Ireland, 25% of Allied Irish Banks and all of Anglo Irish Bank, but that is expected to increase.
Meanwhile the Irish Republic's state-run "bad bank", has announced the first loans to be transferred to it from struggling banks.
The National Asset Management Agency (Nama), which was created last year, will buy 1,200 bad loans from the banks for a total of 8.5bn euros (£7.6bn, $11.4bn).
We need to translate international confidence into the banking sector... and sort it out once and for all Brian Lenihan, Irish finance minister
Bad loans will be transferred from a total of five institutions, Nama said, including Allied Irish Banks, Anglo Irish Bank, Bank of Ireland, Irish Nationwide Building Society and EBS Building Society.
Speaking before the announcement, Eoin O'Callaghan, European economist at BNP Paribas, said the transfer of bad loans was important progress.
"This is the start of the plan designed to cut the vicious circle in Ireland whereby banks aren't lending in to the economy, which is making things worse and making their own loan portfolios less likely to be paid back, making the banks even less likely to lend," he told the BBC.
'International confidence'
Speaking earlier this week , the Irish finance minister Brian Lenihan told RTE radio that further action was needed, saying that the banking sector needed to be sorted out "once and for all".
"The Irish state has established its own credibility as a state that can manage its own finances. There is huge international recognition of that now," he said.
"We need to translate all that international confidence into the banking sector as well, and sort it out once and for all."
Irish plans to increase taxpayer stakes in the major banks are in contrast to the position of other countries hit by the financial crisis.
In the US, several bailed-out banks have recovered sufficiently to repay the government aid they received.
This month the US government announced plans to sell back its 27% stake in Citigroup - one of the banks hardest hit by financial crisis.
In UK, the government is expected to consider selling back its stakes in Lloyds Banking Group and Royal Bank of Scotland later this year.
Expectation of further action by the Irish government has caused bank shares to fall again on Tuesday, following sharp falls on Monday.
Shares in Allied Irish Banks were down 17% on Tuesday, adding to a 19.6% fall seen on Monday.
