Labour have said that while they will not block it at this first step they "are looking for some big concessions on jobs and there will be some tough negotiations over the next fortnight."
Annabel Goldie and the Conservatives, whose support secured the budget last year, has said her party will not support it if plans to drop last year's concessions to fund extra police officers, a national drugs strategy, and business rate cuts for small firms are included. Or if their aren't proposals in the new budget to help hard-pressed families and businesses.
However, both the Tories and Labour are prepared to support, or at least not vote against it at this first vote tomorrow. The Lib Dems have already indicated that they will vote against it. Leader Tavish Scott saying "No other government, national or devolved, in western Europe has made such a meagre response to this economic storm" backing his call for a 2p cut in income tax.
Whilst calling for support Swinney has also said:
"We are prepared to listen to reasonable ideas and proposals from across
"In these difficult times, there is a responsibility on parliament, as
well as the government, to meet that challenge and not jeopardise the
accelerated investment and jobs by standing in the way of the budget."
So if as looks likely it passes this first vote and passed on to the scrutiny stage it looks as if there will terse and tense negotiations ahead.