The 2025-26 Budget, supply Acts and first appropriationA legal authority from Parliament for the Australian Government to spend public money for stated purposes. Acts had already funded government activity for the year. Later decisions required extra annual appropriations, so the government introduced three additional estimates bills in February 2026. This bill dealt with non-ordinary annual servicesSpending kept separate from ordinary annual services, often including capital injections, loans, grants to states and some administered assets or liabilities., including large non-operating items for Defence, water recovery and Housing Australia. The Senate later rejected Senator Malcolm Roberts’s attempt to send the bills back until net zero funding was removed, then passed the bill before Royal Assent on 27 March 2026.
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2025-26
Earlier budget laws set baseline funding
The explanatory memorandum says the additional estimates bills sat alongside the 2025-26 supply Acts and appropriationA legal authority from Parliament for the Australian Government to spend public money for stated purposes. Acts, and funded government decisions made since the 2025-26 Budget.
Explanatory memorandum ↗
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05 Feb 2026
Government introduces non-ordinary additional estimates bill
Assistant Treasurer Daniel Mulino introduced the bill, saying it sought $3.5 billion for non-ordinary services including Defence capability, Murray-Darling Basin water recovery and Housing Australia loans.
Minister's second reading speech ↗
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24 Mar 2026
House passes the appropriationA legal authority from Parliament for the Australian Government to spend public money for stated purposes. bill
The House agreed to the second and third readings on 24 March 2026, completing the bill’s passage through the originating chamber.
Parliamentary timeline ↗
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26 Mar 2026
Senate rejects net zero funding delay
The Senate defeated Senator Malcolm Roberts’s second-reading amendmentA proposed change to the motion about whether a bill should be read a second time. It usually records a position or call to action, rather than directly changing the bill text. to delay the bills until amendments removed net zero funding, then agreed to the main second-reading question.
Senate Journal division record ↗
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27 Mar 2026
Royal Assent starts the Act
The Act received Royal Assent on 27 March 2026. Its commencement table says the whole Act starts on the day of Royal Assent.
Federal Register of Legislation and final Act text ↗