The Tánaiste said the final budget figures will not be agreed upon until Tuesday morning, hours before it is delivered by Michael Noonan and Brendan Howlin.
The Tánaiste and Labour leader said there is only limited opportunity to improve services and give workers something back in their pay-packets:
"We have a small amount which we are going to spend in terms of both improving services and doing something on the tax side," she said.
Joan Burton's comments come as new figures show the Government's deficit is well below the projected target.
If no new measures are introduced in the budget, the Department of Finance says overspending will fall to 2.4% next year, beating the EU's deficit target of 3%.