Independent TD Michael Healy-Rae has confirmed that he will take a junior ministerial role in the new government.
However, the Kerry politician declined to say which department he will work in and said it was a matter for the Taoiseach.
He said after many years in opposition, he and his brother Danny (also a TD) want to work within government to better their home county, and all of Ireland.
Mr Healy-Rae said they had been working diligently over the last number of weeks to do what he said they believed was the right thing for them, to support the new government.
“We have done so in the interests of the needs and the requirements of the people in Co Kerry, be they in business, farming, fishing, disability and the hospitality sector,” he told media outside Leinster House.
“The reason that the negotiations were so long and protracted until late last night was because we really have been diligent about making sure our stamp and that our views are in the programme for government.
“No document is ever perfect, but we believe the document contains a lot of the issues that Danny has been fighting for over the last many years in opposition.
“Now we want to be on the other side, and that is fighting from within government using the structures of government to better the case of the people in Kerry and throughout rural and urban Ireland.”
Danny Healy-Rae said he wants to see a “return of common sense” in government.
“What we would like most of all is that this government gets back to basics and gets back to the basic things that the people need, what the farmers need, what the tourism sector needs and all the different things that we’ve been highlighting,” he said.
“Whatever the issue is, we’re not slow to come out, and we’ll be still doing that.
“We will try and make sure that common sense prevails, that’s the thing that is needed more so than anything else.”
The coalition between Fianna Fáil, Fine Gael and Independent TDs will give the new government a "comfortable majority," a negotiator for one of the parties said.
He also praised his brother Danny for his negotiation skills over recent weeks.
“If President Trump is looking to get any able person to assist him in stopping the war in the Ukraine, he couldn’t carry a better person than Danny Healy-Rae with him,” he added.
“His negotiation skills over the last number of weeks are second to none.
“The work we have done, we are ensuring that government are taking on board the issues and the concerns that are County Kerry.
Fianna Fáil and Fine Gael, who were the largest parties in the outgoing coalition, have been in talks since they fell just one seat short in the November 29th general election of the 87 needed to govern.
"There's group of nine independents now... and that brings us up to 95, so we've a comfortable majority," Fianna Fáil TD James Lawless, one of the party's negotiators, told RTÉ radio.
A draft programme for government will be distributed later on Wednesday to the TDs who have agreed to back the new coalition, he said.
Two Independent TDs will sit at the Cabinet and the Regional Independent Group will also have two junior ministers.
The programme for government is understood to be largely a synthesis of the Fianna Fáil and Fine Gael manifestos.
While sources said the programme for government would not be explicit on VAT, it is understood there is political agreement for VAT on energy to stay at 9 per cent and fall from 13.5 per cent to 9 per cent for food, hospitality, hairdressers and entertainment in the next budget.
All three parties to the new government will meet on Wednesday to start the process of approving its programme of work.
Fine Gael, Fianna Fáil and the Regional Independent Group will get sign off from its TDs and Senators before the two parties send the document for approval of the membership.
Neither is expecting any backlash against the deal – paving the way for Micheál Martin's second stint as Taoiseach from next Wednesday.
Independent Sligo-Leitrim TD Marian Harkin has said the draft programme for government for the newly agreed government will be available later.
Ms Harkin, who is expected to become a junior minister, told RTÉ’s Morning Ireland they “negotiated intensely, for a long time, on national policies”, including carers, farmers and disability services.
“Our role was to ensure that the people who we met on the doorsteps, that their views were taken into consideration in any programme for government,” she said.
“The draft programme for government is available later today. It has to be finally signed off on by all of the parties and until that happens no-one can give any detail.”
Fine Gael TD Jennifer Carroll MacNeill said every TD will be equal in the new coalition.
Asked what the Independents will get for supporting the new government, she said they will get to be participants in government.
“They’re going to have the opportunity to contribute through different ministries, to work in government departments on behalf of the people of Ireland,” she told Morning Ireland.
“They’re going to have the opportunity to help shape policy, as they did over the last number of days and weeks, in relation to the programme for government, and they’re going to be there as part of the government to protect the state, protect the people of Ireland, and implement the programme for government.”
She added: “Every single TD in the government parties has the same mandate to deliver for their constituents as TDs across the Dail do, but specifically in the government, every TD is equal, there is no preferment, what is more important is delivery for the people of Ireland.”
