Mary Lou Cose
Dufferin-Peel Catholic District School Board/Teacher
2023 Salary — last year on the list
$100,651Total compensation $100,752, including $100 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
2023
Employer Rank
#1,214Dufferin-Peel Catholic District School Board
Years on List
32021–2023
Peak Salary
$102,6322021
Full 2023 roster at Dufferin-Peel Catholic District School Board →·See where $100,651 ranks →
Total Compensation History
Full History
2021–2023
$102,632 in 2021 is worth about $119,012 in 2025 dollars.
| Year | Position | Salary |
|---|---|---|
| 2023 | TeacherDufferin-Peel Catholic District School Board | $100,651Benefits $100Total $100,752 |
| 2022 | TeacherDufferin-Peel Catholic District School Board | $101,976Benefits $91Total $102,066 |
| 2021 | TeacherDufferin-Peel Catholic District School Board | $102,632Benefits $87Total $102,718 |
Take-Home Pay
(After Tax) · 2023 estimate
Take-home on Mary Lou Cose's 2023 salary of $100,651 comes to roughly $74,084 once federal and Ontario income tax (about 21.7% effective) is deducted. Compared with 2022, when the figure was $101,976, that is a drop of about 1%. Among those listed as Teacher in 2023, the median was $102,994; this salary sits about 2% below it. After pension contributions (probably OTPP for teachers or OMERS in this sector), take-home is usually a further 7–10% lower.
- Estimated net pay
- ~$74,084
- Effective income-tax rate (excl. CPP/EI)
- ~21.7%
- CPP + EI contributions
- ~$4,756
- All-in deduction rate (incl. CPP/EI)
- ~26.4%
- vs. 2023 Teacher median
- −2%
Where does $100,651 rank on the Sunshine List? →
Estimate only: 2023 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.