Small and medium sized businesses will receive a once-off payment before Christmas to help deal with rising costs.
The measure will be announced in the Budget and will not apply to multinationals.
The exact amount has not yet been agreed but it will be based on the size of the company.
Meetings to finalise this year's Budget have continued all day today.
The three party leaders will meet later tomorrow to sign off on most measures but some details are not expected to be agreed until Monday.
Personal tax cuts will be a centrepiece of Tuesday's announcements with changes to income tax bands and credits as well as reductions in USC.
There is expected to be two energy credits paid between now and Christmas but these will likely be less than the €200 support agreed last year.
Core social welfare rates are expected to go up by between ten and twelve euro a week.
More once-off payments will be given between now and Christmas but these will be smaller than last year.
Tackling child poverty will also be a feature of the Budget with a childcare package expected along with more free schoolbooks and extra help on child benefit.
A targeted mortgage interest relief package is also due to be finalised tomorrow.
This evening, Minister for Finance Michael McGrath said he believes "living standards will rise" after Tuesday's budget - saying he expects people will "make gains in real terms".
Speaking with reporters at a Fianna Fail event in Dublin city this evening, the Fianna Fail TD said he is aware while "many people were able to absorb the cost-of-living increases", the past 18 months has "put others under real strain".
He said: "I do believe that is about to change" and that "it [the Budget] is not about the never never, it's about people today".
However, Mr McGrath also said the recent reduction in corporation tax receipts shows "the sands are shifting" and that the country must be careful about any financial measures.
The Minister added that discussions on the budget will continue on Sunday when the leaders of Fianna Fail, Fine Gael and the Green Party meet over the issues, and that he expects a "small" number of points to remain up for discussion by Monday.
Additional reporting: Fiachra O'Cionnaith
