The New South Wales government has announced its intention to update existing legislation to grant the One Nation party access to the independent Parliamentary Budget Office (PBO). Currently, the PBO is structured to provide costings only for the Labor Party and the Coalition, a framework established when the state's political landscape was primarily a two-party contest.

Treasurer Daniel Mookhey stated that the government is preparing these amendments to reflect the reality that the March 2027 election will likely involve three parties competing to form a government. By providing One Nation with access to the PBO, the government aims to subject the party's policy platform to the same financial scrutiny as the major parties. Mookhey expressed that he is "looking forward" to seeing the costings of One Nation’s policy ideas, suggesting that the move is intended to challenge the party to justify its populist platform with concrete economic data.

While the government frames this as a necessary update to ensure transparency and accountability in a changing political environment, the change highlights the growing influence of minor parties in the state legislature. The current law only contemplates a contest between Labor and the Coalition, leaving a gap in the oversight of other political entities. The government's initiative seeks to close this gap, ensuring that voters have access to independent financial analysis of the promises made by all major contenders in the upcoming election cycle.