It follows a claim the coalition would give a major concession on tax to middle-income taxpayers to show austerity is nearly over.
The Tánaiste told reporters in Luxembourg that it was "purely speculative".
And Jobs Minister Richard Bruton agrees.
"This is - what, April? The Budget won't be until October" he said.
"Every year we've seen speculation about what might or might not be in the Budget. The government's determination is to deliver a plan which includes job creation, a sustainable approach to fiscal policy, that we get our budget right - that's what we're committed to".
"The shape of that we ill be developed over the course of the coming months. I think this isn't the time to comment on what might be in it" he added.