Theresa Maddox
Thames Valley District School Board/Principal
2025 Salary
$164,687Total compensation $164,687, 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
#169Thames Valley District School Board
Years on List
102016–2025
Peak Salary
$164,6872025
Full 2025 roster at Thames Valley District School Board →·See where $164,687 ranks →
Total Compensation History
Full History
2016–2025
$104,097 in 2016 is worth about $133,121 in 2025 dollars.
| Year | Position | Salary |
|---|---|---|
| 2025 | PrincipalThames Valley District School Board | $164,687Benefits $0Total $164,687 |
| 2024 | PrincipalThames Valley District School Board | $153,876Benefits $0Total $153,876 |
| 2023 | Elementary PrincipalThames Valley District School Board | $126,763Benefits $237Total $127,001 |
| 2022 | Elementary PrincipalThames Valley District School Board | $128,518Benefits $0Total $128,518 |
| 2021 | Elementary PrincipalThames Valley District School Board | $123,975Benefits $0Total $123,975 |
| 2020 | Elementary PrincipalThames Valley District School Board | $128,164Benefits $64Total $128,228 |
| 2019 | Elementary PrincipalThames Valley District School Board | $116,345Benefits $0Total $116,345 |
| 2018 | Elementary PrincipalThames Valley District School Board | $107,411Benefits $192Total $107,602 |
| 2017 | Elementary Vice PrincipalThames Valley District School Board | $106,635Benefits $757Total $107,393 |
| 2016 | Elementary Vice PrincipalThames Valley District School Board | $104,097Benefits $681Total $104,778 |
Take-Home Pay
(After Tax) · 2025 estimate
Take-home on Theresa Maddox's 2025 salary of $164,687 comes to roughly $111,967 once federal and Ontario income tax (about 28.7% effective) is deducted. For comparison, the median Principal (level not specified) on the 2025 list was paid $165,678; this salary is about 1% less. Compared with 2024, when the figure was $153,876, that is a rise of about 7%. After pension contributions (probably OTPP for teachers or OMERS in this sector), take-home is usually a further 7–10% lower.
- Estimated net pay
- ~$111,967
- Effective income-tax rate (excl. CPP/EI)
- ~28.7%
- CPP + EI contributions
- ~$5,507
- All-in deduction rate (incl. CPP/EI)
- ~32.0%
- vs. 2025 Principal (level not specified) median
- −1%
Where does $164,687 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.