What is the role of the opposition in Australian Parliament?

The opposition in the Australian Parliament is the party or coalition with the second-largest number of seats in the House of Representatives that is not part of the government. The opposition's role is to scrutinise the government, hold ministers accountable, propose alternative policies, and present itself as the alternative government at the next election.

The opposition is led formally by the Leader of the Opposition, a statutory position with its own office, salary, and support staff. The Leader of the Opposition is the alternative Prime Minister, and chooses a shadow cabinet of shadow ministers who scrutinise the government's portfolios. As of 2026, the Leader of the Opposition is Sussan Ley, who became Leader of the Liberal Party after Peter Dutton lost his seat at the May 2025 federal election that re-elected the Albanese Labor government.

The opposition's main scrutiny tools include Question Time (daily during sittings, the most visible accountability moment), motions for papers to be tabled, censure motions, no-confidence motions, motions to suspend standing orders, and the ability to lead debate on government bills. Senate Estimates (three times a year) provide opposition senators with extensive questioning of ministers and senior officials. Opposition members can also serve on parliamentary committees that inquire into legislation and government actions.

The opposition has institutional support beyond Parliament. The Leader of the Opposition receives a salary (currently about 423,000 dollars in 2024 to 2025, the same as Cabinet ministers) and resources for constituency, policy development, and campaign activities. Shadow ministers receive smaller additional salaries and resources. The opposition party or coalition develops policy through its party room, with formal preselection processes selecting candidates for the next election. The convention of a 'loyal opposition' (loyal to the Crown and the Constitution but opposed to the government) traces back to the Westminster system in the early nineteenth century and is fundamental to Australian parliamentary democracy.