Australia needs to find "significant savings" in the Budget to be presented in May, as the Government remains determined to return to surplus in the next fiscal year, Treasurer Wayne Swan said.
"One of the lingering effects of the global financial crisis has been a massive writedown of tax receipts," Swan said.
"This will inevitably flow through to the budget bottom line and obviously means we will have to find significant savings in the May Budget."
Business profits unexpectedly dropped in the three months through December, by the most in 2 years as earnings weakened at mining and financial companies. Australia posted its first trade deficit in 11 months in January, as weaker shipments of iron ore and coal contributed to the biggest drop in total exports in almost three years.
Under the Treasury's midyear review released in November, government revenues were down A$140 billion ($180 billion) in the five years to 2012-13 from the pre-crisis forecast, Swan said.