Steven Mackay
Treasury Board Secretariat/Assistant Deputy Minister, Employee Relations and Negotiations Division
2025 Salary
$260,487Total compensation $260,722, including $236 in taxable benefits.
Source: Ontario’s Public Sector Salary Disclosure — names paid $100,000 or more that year. How we build this · Report an error on this page
At a Glance
2025
Employer Rank
#23Treasury Board Secretariat
Years on List
82018–2025
Peak Salary
$260,4872025
Full 2025 roster at Treasury Board Secretariat →·See where $260,487 ranks →
Total Compensation History
Full History
2018–2025
$107,962 in 2018 is worth about $132,888 in 2025 dollars.
| Year | Position | Salary |
|---|---|---|
| 2025 | Assistant Deputy Minister, Employee Relations and Negotiations DivisionTreasury Board Secretariat | $260,487 |
| 2024 | Director, Negotiations BranchTreasury Board Secretariat | $164,368 |
| 2023 | Director, Negotiations Branch / Directeur, Direction des négociationsTreasury Board Secretariat / Secrétariat Du Conseil Du Trésor | $145,130 |
| 2022 | Director, Negotiations BranchTreasury Board Secretariat | $155,041 |
| 2021 | Director, Negotiations BranchTreasury Board Secretariat | $124,672 |
| 2020 | Manager, Union Management RelationsTreasury Board Secretariat | $122,413 |
| 2019 | Manager, Union Management RelationsTreasury Board Secretariat | $117,739 |
| 2018 | ManagerTreasury Board Secretariat | $107,962 |
Take-Home Pay
(After Tax) · 2025 estimate
Of the $260,487 Steven Mackay earned in 2025, roughly $161,006 would remain after income tax, CPP and EI, an all-in deduction rate of about 38.2%. At Treasury Board Secretariat, 1,198 people made the 2025 list with a median salary of $127,798; Steven Mackay's total compensation of $260,722 ranked #23. Steven Mackay has appeared on the list 8 times since 2018. After pension contributions (probably PSPP or OPTrust in this sector), take-home is usually a further 7–10% lower.
- Estimated net pay
- ~$161,006
- Effective income-tax rate (excl. CPP/EI)
- ~36.1%
- CPP + EI contributions
- ~$5,507
- All-in deduction rate (incl. CPP/EI)
- ~38.2%
Where does $260,487 rank on the Sunshine List? →
Estimate only: 2025 federal and Ontario rates, basic personal amounts, Canada employment amount and CPP/EI credits; single, employment income only, salary treated as full-year income. Ignores pension contributions (OMERS, HOOPP, OTPP, OPTrust and similar plans lower actual take-home), union dues, RRSPs and benefits.