Mr Gutwein has promised to remain debt-free across the forward estimates after making "difficult but necessary" decisions to get the budget onto a sustainable footing.

He is promising no new savings or taxes, while pledging record spending on health and education.

Northern high school infrastructure is set to receive $25.5 million, while the North's two special education schools are set to be merged.

There is $21 million extra in Gonski funding.

The budget confirms a $100 cash injection on frontline health services, while $16 million is set aside to tackle family violence.