Kathryn Markham-Petro
St Clair College of Applied Arts and Technology/Professor
2025 Salary
$134,603Total compensation $134,661, including $58 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
#97St Clair College of Applied Arts and Technology
Years on List
82018–2025
Peak Salary
$134,6032025
Full 2025 roster at St Clair College of Applied Arts and Technology →·See where $134,603 ranks →
Total Compensation History
Full History
2018–2025
$108,605 in 2018 is worth about $133,680 in 2025 dollars.
| Year | Position | Salary |
|---|---|---|
| 2025 | ProfessorSt Clair College Of Applied Arts and Technology | $134,603Benefits $58Total $134,661 |
| 2024 | ProfessorSt Clair College Of Applied Arts and Technology | $126,689Benefits $58Total $126,747 |
| 2023 | ProfessorSt Clair College Of Applied Arts and Technology | $127,111Benefits $59Total $127,170 |
| 2022 | ProfessorSt Clair College Of Applied Arts and Technology | $117,072Benefits $66Total $117,137 |
| 2021 | ProfessorSt Clair College Of Applied Arts and Technology | $117,372Benefits $74Total $117,446 |
| 2020 | ProfessorSt Clair College Of Applied Arts and Technology | $113,655Benefits $71Total $113,726 |
| 2019 | ProfessorSt Clair College Of Applied Arts and Technology | $111,655Benefits $68Total $111,723 |
| 2018 | ProfessorSt. Clair College | $108,605Benefits $68Total $108,673 |
Take-Home Pay
(After Tax) · 2025 estimate
Kathryn Markham-Petro was paid $134,603 in 2025; after income tax, CPP and EI that is roughly $95,155, an effective income-tax rate of about 25.2%. Compared with 2024, when the figure was $126,689, that is a rise of about 6%. Kathryn Markham-Petro has appeared on the list 8 times since 2018. After pension contributions (probably the CAAT Pension Plan in this sector), take-home is usually a further 7–10% lower.
- Estimated net pay
- ~$95,155
- Effective income-tax rate (excl. CPP/EI)
- ~25.2%
- CPP + EI contributions
- ~$5,507
- All-in deduction rate (incl. CPP/EI)
- ~29.3%
- vs. 2025 Professor median
- −1%
Where does $134,603 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.