Sonja Fonfara
University of Guelph/Professor
2025 Salary
$253,936Total compensation $254,573, including $636 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
#80University of Guelph
Years on List
102016–2025
Peak Salary
$253,9362025
Full 2025 roster at University of Guelph →·See where $253,936 ranks →
Total Compensation History
Full History
2016–2025
$141,348 in 2016 is worth about $180,758 in 2025 dollars.
| Year | Position | Salary |
|---|---|---|
| 2025 | ProfessorUniversity Of Guelph | $253,936Benefits $636Total $254,573 |
| 2024 | ProfessorUniversity Of Guelph | $224,404Benefits $518Total $224,923 |
| 2023 | Associate ProfessorUniversity Of Guelph | $188,200Benefits $507Total $188,707 |
| 2022 | Associate ProfessorUniversity Of Guelph | $183,437Benefits $527Total $183,964 |
| 2021 | Associate ProfessorUniversity Of Guelph | $183,852Benefits $623Total $184,476 |
| 2020 | Associate ProfessorUniversity Of Guelph | $176,255Benefits $671Total $176,926 |
| 2019 | Associate ProfessorUniversity Of Guelph | $169,618Benefits $651Total $170,269 |
| 2018 | Associate ProfessorUniversity of Guelph | $162,054Benefits $628Total $162,683 |
| 2017 | Associate ProfessorUniversity of Guelph | $161,451Benefits $525Total $161,976 |
| 2016 | Associate ProfessorUniversity of Guelph | $141,348Benefits $251Total $141,599 |
Take-Home Pay
(After Tax) · 2025 estimate
Take-home on Sonja Fonfara's 2025 salary of $253,936 comes to roughly $157,941 once federal and Ontario income tax (about 35.6% effective) is deducted. That is about 87% above the 2025 median of $135,910 for Professor on the Sunshine List. That is about 13% more than the $224,404 paid in 2024. Sonja Fonfara has appeared on the list 10 times since 2016. This estimate leaves out pension contributions; members of OMERS, OTPP, HOOPP or OPTrust typically take home another 7–10% less.
- Estimated net pay
- ~$157,941
- Effective income-tax rate (excl. CPP/EI)
- ~35.6%
- CPP + EI contributions
- ~$5,507
- All-in deduction rate (incl. CPP/EI)
- ~37.8%
- vs. 2025 Professor median
- +87%
Where does $253,936 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.