The Dáil will vote on a confidence motion in the Government amid ongoing Opposition criticism of its handling of the fuel protests.
The Government has the necessary numbers to win the vote but some of the Independent TDs supporting it have not yet confirmed if they will back the Coalition.
This vote was triggered by a Sinn Féin no confidence motion in the Government.
When the Dáil returns this afternoon after the Easter break, the decks will be cleared to debate the Government's motion of confidence in itself.
A row is likely given that the Opposition leaders' questions to Taoiseach Micheál Martin are being cast aside to allow for the two-and-a-half-hour debate, which will be followed by roll call vote.
The Independent TDs, Gillian Toole, Barry Heneghan and Danny Healy-Rae, are still considering how they will vote. The Kerry TD is viewed as the most likely to break ranks with the Government.
Michael Healy-Rae's junior ministerial role could be in jeopardy if his brother votes against the Government in the confidence motion.
Senior figures in the coalition are adamant that the ministry was secured on that basis that both Michael and Danny Healy-Rae would support the Government.
"The deal was two of them for one ministerial job," said one key negotiator in the government formation talks.
Michael Healy-Rae was subsequently appointed as a junior minister at the Department of Agriculture.
When the coalition was formed the Healy-Raes described themselves as fourth leg of the coalition.
"They can't be the fourth leg if half that leg is outside of Government," was the view from Government Buildings this morning.
Danny Healy-Rae yesterday called on the Taoiseach and the Tánaiste to step down, but he declined to say if he would vote against the Government today.
After a meeting of the Regional Independents last night, his position remained unclear, with those close to him saying it was "too early" to say what he will do.
The sense in Government is that the eight other Independent TDs supporting the Government will vote confidence in it today.
Later in the evening, the Dáil will vote on the financial measures to introduce those further cuts to excise duty on petrol, diesel and green diesel announced at the weekend.
The Cabinet also met this morning.
Live: Updates as they happen
Minister for Social Protection Dara Calleary is seeking Government approval to publish the general scheme of legislation which will allow the Public Service Card to act as a form of identity for credit unions, banks, and utility providers.
Cardholders can also choose to put their date of birth on the card as a means of age verification.
Speaking to reporters on his way into the Cabinet meeting, Tánaiste Simon Harris said that the last week has been a "really difficult period of time in our country".
"People are really struggling. People are to the pin of their collar," he said.
He said that the level of pain that people are feeling is real, but that blocking critical infrastructure is not the answer.
"But people are really, really under pressure, and we were working our way through that," the Tánaiste said.
Additional reporting Róisín Cullen
