Department of Treasury (Western Australia)

Department of Treasury
Department overview
Dissolved30 June 2025
Superseding Department
JurisdictionGovernment of Western Australia
HeadquartersDavid Malcolm Justice Centre
28 Barrack Street, Perth
Minister responsible
Department executive
  • Michael Barnes, Under Treasurer
Websitewww.wa.gov.au/organisation/department-of-treasury

The Department of Treasury is a department of the Government of Western Australia. The department is responsible for principal economic and financial advice to the state government.

The department was one of the few that remained mostly unaffected by the 2017 restructuring of the Western Australian government departments, which resulted in the number of departments being reduced from 41 to 25.

On 1 July 2025 it will become the Department of Treasury & Finance and take over some functions from the Department of Finance.