Ahead of revealing his first budget as Treasurer, Scott Morrison is emphasising it won't be just another pre-election budget.
He says it's a logical and effective plan for improving Australia's future.
"It's not a typical budget it's not an ordinary budget. This is a budget that has to deliver a plan for jobs and growth. Sweeteners won't change the circumstances for the people who are facing difficult times in our economy. A national plan for growth and jobs is what they need. And that's what they'll get in the budget tonight."
Funding for cyber security, state road and rail projects, and public schools will be announced.
A much talked about tax reform package, including a crackdown on multinational tax avoiders, will also be unveiled.
Federal opposition leader, Bill Shorten, says the government is repeating past mistakes.
"This will be another unfair Liberal budget with its unfair priorities. If the reports are true, this is a budget which will favour the big end of town over everyday Australians. Study this budget carefully for the cuts that it makes: the greater pressure on kids going to university, the inadequate funding of our schools, the cuts to Medicare, the relentless and repeated assault upon bulk billing undermining the universality of access to our healthcare system in this country."
Aid groups are meanwhile hoping that the foreign aid budget isn't cut further.
Adrian Graham from the United Nations' children's agency UNICEF, says the most vulnerable will suffer if .
"This is a significant impact and has a significant impact on children in developing countries, who Australia traditionally supports and it has ramifications I guess for our international standing as a good global citizen, what that means in terms of the share of gross national income, international aid will be just 23 cents of every $100 dollars."
Other measures expected to be unveiled include tax cuts for small and medium businesses, and changes to middle-income earners to stop so-called "bracket creep" *.
But Senator Chris Bowen, the Opposition's Treasury spokesman, has accused the Treasurer of copying Labor's policies Labor - such as hiking an excise on tobacco.
"The day that he adopts Labor's policies in many regards: high-income super, which he railed against, said was an attack on the retirement incomes of Australians - he will adopt a similar policy. The day he adopts Labor's tobacco excise changes. Now isn't it interesting, he we are on budget day, what's the big leak from the budget? What's the big revelation that Scott Morrison has? That he will adopt, holus-bolus, Labor policy announced last year."
Finance Minister Matthias Cormann says while the policy is solid, the costings are not.
"It's the same increase on the same terms as what Labor has previously announced, and what it shows is that Labor had a $20 billion black hole in their costings. We think it is a sensible part of our overall economic plan."
Speaking to the A-B-C, Labor's Assistant Treasurer Andrew Leigh has defended the calculations, saying the government is just trying to cause a distraction.
"This is yet another leak from a government which is leaking worse than a blow-up dinghy run aground. This is a government that is desperate to distract. They don't want Australians to be talking about the fact that they still have plans to cut family payments, that they're not serious about taking on multinationals, and they're still going to the election with Tony Abbott's policies."
