Joseph Diffey
Ottawa Catholic School Board/Department Head
2025 Salary
$129,429Total compensation $129,531, including $102 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
#320Ottawa Catholic School Board
Years on List
122012–2025
Peak Salary
$135,2542024
Full 2025 roster at Ottawa Catholic School Board →·See where $129,429 ranks →
Total Compensation History
Full History
2012–2025
$100,352 in 2012 is worth about $135,397 in 2025 dollars.
| Year | Position | Salary |
|---|---|---|
| 2025 | Department HeadOttawa Catholic School Board | $129,429 |
| 2024 | Department HeadOttawa Catholic School Board | $135,254 |
| 2023 | Department HeadOttawa Catholic School Board | $108,979 |
| 2022 | Department HeadOttawa Catholic School Board | $109,070 |
| 2021 | Department HeadOttawa Catholic School Board | $108,595 |
| 2020 | Department HeadOttawa Catholic School Board | $105,445 |
| 2019 | Department HeadOttawa Catholic School Board | $105,271 |
| 2018 | Department HeadOttawa Catholic School Board | $103,532 |
| 2017 | Department HeadOttawa Catholic School Board | $102,607 |
| 2015 | Department HeadOttawa Catholic School Board | $100,361 |
| 2014 | Department HeadOttawa Catholic School Board | $103,995 |
| 2012 | Department HeadOttawa Catholic School Board | $100,352 |
Take-Home Pay
(After Tax) · 2025 estimate
Take-home on Joseph Diffey's 2025 salary of $129,429 comes to roughly $92,227 once federal and Ontario income tax (about 24.5% effective) is deducted. At Ottawa Catholic School Board, 2,495 people made the 2025 list with a median salary of $122,634; Joseph Diffey's total compensation of $129,531 ranked #320. 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
- ~$92,227
- Effective income-tax rate (excl. CPP/EI)
- ~24.5%
- CPP + EI contributions
- ~$5,507
- All-in deduction rate (incl. CPP/EI)
- ~28.7%
- vs. 2025 Department Head median
- +3%
Where does $129,429 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.