| Ministry overview | |
|---|---|
| Formed | 1962 (first established) 2014 (re-established) |
| Jurisdiction | Government of Ontario |
| Headquarters | 99 Wellesley Street West Toronto, Ontario, Canada |
| Minister responsible |
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| Deputy Minister responsible |
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The Treasury Board Secretariat is the ministry of the Government of Ontario that is charged with supporting the work of the Treasury Board/Management Board of Cabinet, a joint sub-committee of cabinet that manages the fiscal plan of the government including controlling all government spending, approving labour agreements and workforce planning, manage the provincial contingency fund and oversee the procedures and directives that guide the operation of the Ontario Public Service.
In 2022, the mandate of the ministry expanded to include the overseeing of Supply Ontario and Emergency Management Ontario.
The current President of the Treasury Board is Caroline Mulroney.