Mark Costello
Trillium Lakelands District School Board/Teacher – Elementary
2025 Salary
$118,054Total compensation $118,054, 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
#385Trillium Lakelands District School Board
Years on List
22024–2025
Peak Salary
$130,5892024
Full 2025 roster at Trillium Lakelands District School Board →·See where $118,054 ranks →
Total Compensation History
Full History
2024–2025
$130,589 in 2024 is worth about $133,267 in 2025 dollars.
| Year | Position | Salary |
|---|---|---|
| 2025 | Teacher – ElementaryTrillium Lakelands District School Board | $118,054 |
| 2024 | Elementary TeacherTrillium Lakelands District School Board | $130,589 |
Take-Home Pay
(After Tax) · 2025 estimate
Of the $118,054 Mark Costello earned in 2025, roughly $85,791 would remain after income tax, CPP and EI, an all-in deduction rate of about 27.3%. Compared with 2024, when the figure was $130,589, that is a drop of about 10%. Records under this name have appeared on the Sunshine List 2 years in all, first in 2024. Pension contributions — likely OTPP for teachers or OMERS in the School Boards sector — would typically trim another 7–10% off that figure.
- Estimated net pay
- ~$85,791
- 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 Elementary Teacher median
- about even
Where does $118,054 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.