A government crackdown on consultants will help fund the bulk of Labor's AU$10 billion in election promises, while ensuring public servants take on more core responsibilities themselves, according to pre-election costings released on Monday.

Treasurer Jim Chalmers revealed the budget would be AU$1 billion better off over the next four years compared to the March budget, which forecasted deficits exceeding AU$150 billion during the same period, ABC News reported.

The updated budget figures include AU$6.4 billion in savings from reduced reliance on consultants, along with AU$740 million in additional revenue generated by raising student visa application fees. From July 1, the cost of student visas will increase to........

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