Mark O'Brien
Toronto District School Board/Teacher, Secondary
2025 Salary
$118,030Total compensation $118,030, including $0 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
#10,568Toronto District School Board
Years on List
82018–2025
Peak Salary
$133,5072024
Full 2025 roster at Toronto District School Board →·See where $118,030 ranks →
Total Compensation History
Full History
2018–2025
$102,555 in 2018 is worth about $126,233 in 2025 dollars.
| Year | Position | Salary |
|---|---|---|
| 2025 | Teacher, SecondaryToronto District School Board | $118,030 |
| 2024 | Teacher, SecondaryToronto District School Board | $133,507 |
| 2023 | Teacher, SecondaryToronto District School Board | $102,243 |
| 2022 | Assistant Curriculum Leader SecondaryToronto District School Board | $104,440 |
| 2021 | Assistant Curriculum Leader SecondaryToronto District School Board | $106,827 |
| 2020 | Teacher SecondaryToronto District School Board | $100,828 |
| 2019 | Assistant Curriculum Leader, SecondaryToronto District School Board | $101,405 |
| 2018 | Assistant Curriculum Leader, SecondaryToronto District School Board | $102,555 |
Take-Home Pay
(After Tax) · 2025 estimate
In 2025, Mark O'Brien's $118,030 salary works out to roughly $85,777 after income tax, CPP and EI — an all-in deduction rate of about 27.3%. That is in line with the 2025 median of $118,069 for Secondary Teacher on the Sunshine List. Mark O'Brien has appeared on the list 8 times since 2018. Most School Boards employees belong to OTPP for teachers or OMERS, so actual take-home is likely another 7–10% lower after pension contributions.
- Estimated net pay
- ~$85,777
- Effective income-tax rate (excl. CPP/EI)
- ~22.7%
- CPP + EI contributions
- ~$5,507
- All-in deduction rate (incl. CPP/EI)
- ~27.3%
- vs. 2025 Secondary Teacher median
- about even
Where does $118,030 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.