* An overhaul of tax breaks for property investors will be framed as a way of giving younger Australians a leg up in the housing market
* Details will be revealed on Tuesday night, but the government is widely expected to pare back negative gearing and capital gains tax concessions, along with changes to the tax treatment of trusts
* The budget will show the nation's finances are $44.9 billion better off than forecast in December 2025, the government says
* There will also be an increase in spending on Australia's military to the tune of $53 billion over the next decade, to deal with intensifying security risks
* The budget will account for a 26-cent-a-litre cut to the price of petrol and diesel, along with a cut to the heavy vehicle road user charge, which are already in place and scheduled to expire on June 30. There is a chance the government will extend these measures
* There has been speculation the government could give Australians a one-off payment of between $200 and $300, but no details have been confirmed
* To reduce pressure on the budget, the government is stripping out about $15 billion a year from the National Disability Insurance Scheme, slashing eligibility and requiring the states to do more to support people with some disabilities
* Australians over 65 will no longer pay discounted rebates for private health insurance, bringing it into line with other age groups. Older Australians will have to pay more than $200 a year extra for their cover
* Tax breaks for electric vehicles will also be phased out. Incentives allowing employers to avoid fringe benefits tax on EVs under $91,000 through a novated lease will be changed to a 25 per cent discount
* The long-running inland rail freight project will be cut, but the government is pouring $3.8 billion into Melbourne's Suburban Rail Loop and $50 million into improving the Sydney-Canberra train line