Mark Duffy
London District Catholic School Board/Secondary Teacher
2025 Salary
$125,811Total compensation $125,811, 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
#162London District Catholic School Board
Years on List
82018–2025
Peak Salary
$137,9452024
Full 2025 roster at London District Catholic School Board →·See where $125,811 ranks →
Total Compensation History
Full History
2018–2025
$102,615 in 2018 is worth about $126,307 in 2025 dollars.
| Year | Position | Salary |
|---|---|---|
| 2025 | Secondary TeacherLondon District Catholic School Board | $125,811 |
| 2024 | Secondary TeacherLondon District Catholic School Board | $137,945 |
| 2023 | Secondary TeacherLondon District Catholic School Board | $108,169 |
| 2022 | Secondary TeacherLondon District Catholic School Board | $108,393 |
| 2021 | Secondary TeacherLondon District Catholic School Board | $109,759 |
| 2020 | Secondary TeacherLondon District Catholic School Board | $104,261 |
| 2019 | Secondary TeacherLondon District Catholic School Board | $104,330 |
| 2018 | Secondary TeacherLondon District Catholic School Board | $102,615 |
Take-Home Pay
(After Tax) · 2025 estimate
Mark Duffy was paid $125,811 in 2025; after income tax, CPP and EI that is roughly $90,180, an effective income-tax rate of about 23.9%. It is down about 9% from the $137,945 paid in 2024. Among those listed as Secondary Teacher in 2025, the median was $118,069; this salary sits about 7% above it. 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
- ~$90,180
- Effective income-tax rate (excl. CPP/EI)
- ~23.9%
- CPP + EI contributions
- ~$5,507
- All-in deduction rate (incl. CPP/EI)
- ~28.3%
- vs. 2025 Secondary Teacher median
- +7%
Where does $125,811 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.