Trefford Simpson
University of Waterloo/Professor
2023 Salary — last year on the list
$225,790Total compensation $226,179, including $389 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
#232University of Waterloo
Years on List
202004–2023
Peak Salary
$225,7902023
Full 2023 roster at University of Waterloo →·See where $225,790 ranks →
Total Compensation History
Full History
2004–2023
$102,713 in 2004 is worth about $161,084 in 2025 dollars.
| Year | Position | Salary |
|---|---|---|
| 2023 | ProfessorUniversity Of Waterloo | $225,790Benefits $389Total $226,179 |
| 2022 | ProfessorUniversity Of Waterloo | $182,782Benefits $509Total $183,292 |
| 2021 | ProfessorUniversity Of Waterloo | $211,072Benefits $571Total $211,643 |
| 2020 | ProfessorUniversity Of Waterloo | $206,360Benefits $551Total $206,910 |
| 2019 | ProfessorUniversity Of Waterloo | $200,535Benefits $565Total $201,100 |
| 2018 | ProfessorUniversity of Waterloo | $194,040Benefits $573Total $194,613 |
| 2017 | ProfessorUniversity of Waterloo | $193,044Benefits $613Total $193,657 |
| 2016 | ProfessorUniversity of Waterloo | $219,410Benefits $655Total $220,064 |
| 2015 | ProfessorUniversity of Waterloo | $211,462Benefits $689Total $212,151 |
| 2014 | ProfessorUniversity of Waterloo | $168,454Benefits $652Total $169,106 |
| 2013 | ProfessorUniversity of Waterloo | $165,409Benefits $475Total $165,884 |
| 2012 | ProfessorUniversity of Waterloo | $157,435Benefits $506Total $157,941 |
| 2011 | ProfessorUniversity of Waterloo | $148,054Benefits $1,132Total $149,186 |
| 2010 | ProfessorUniversity of Waterloo | $143,542Benefits $1,168Total $144,710 |
| 2009 | ProfessorUniversity of Waterloo | $138,134Benefits $1,166Total $139,299 |
| 2008 | ProfessorUniversity of Waterloo | $129,260Benefits $3,513Total $132,774 |
| 2007 | ProfessorUniversity of Waterloo | $121,379Benefits $945Total $122,325 |
| 2006 | ProfessorUniversity of Waterloo | $119,321Benefits $788Total $120,109 |
| 2005 | ProfessorUniversity of Waterloo | $113,010Benefits $668Total $113,679 |
| 2004 | Assoc. ProfessorUniversity of Waterloo | $102,713Benefits $587Total $103,299 |
Take-Home Pay
(After Tax) · 2023 estimate
Of the $225,790 Trefford Simpson earned in 2023, roughly $142,045 would remain after income tax, CPP and EI, an all-in deduction rate of about 37.1%. That is about 24% more than the $182,782 paid in 2022. That is about 76% above the 2023 median of $128,221 for Professor on the Sunshine List. Members of OMERS, OTPP, HOOPP or OPTrust typically take home another 7–10% less after pension contributions, which this estimate leaves out.
- Estimated net pay
- ~$142,045
- Effective income-tax rate (excl. CPP/EI)
- ~35.0%
- CPP + EI contributions
- ~$4,756
- All-in deduction rate (incl. CPP/EI)
- ~37.1%
- vs. 2023 Professor median
- +76%
Where does $225,790 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.