Federal Treasurer Chris Bowen believes the government has struck the right balance between savings and spending measures to keep the budget on track to surplus by 2016/17.
But the price will be ballooning budget deficits, weaker growth and a jump in the unemployment rate.
Mr Bowen and Finance Minister Penny Wong on Friday released an economic update to the May budget and laid out the plan Labor will take to the federal election, which could be called on Sunday.
It shows a further $33.3 billion writedown in government revenues over four years to 2016/17, due to weaker global growth, lower commodity prices, and softer domestic personal and business tax receipts.
"We are calling it as we see it," Mr Bowen told reporters in Canberra.
"There are challenges in this environment."
Labor will make $17.4 billion of "responsible savings", including a higher tobacco excise and changes to fringe benefit tax arrangements on cars.
"Australia is undergoing an economic transition," Mr Bowen said.
its interesting how this has all just happened...
all of a sudden no one saw it coming..

amazing one blow out after another... and its all someone elses fault of course...
ken the con wasnt there to tell us the bad news was he??..too much INTEGRITY