Derrick T Lau
Ontario Health/Senior Architect/Architecte principal
2025 Salary
$121,890Total compensation $122,310, including $420 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
#760Ontario Health
Years on List
62020–2025
Peak Salary
$121,8902025
Full 2025 roster at Ontario Health →·See where $121,890 ranks →
Total Compensation History
Full History
2020–2025
$102,804 in 2020 is worth about $123,215 in 2025 dollars.
| Year | Position | Salary |
|---|---|---|
| 2025 | Senior Architect/Architecte principalOntario Health | $121,890Benefits $420Total $122,310 |
| 2024 | Senior Architect/Architecte principalOntario Health | $116,877Benefits $402Total $117,279 |
| 2023 | Senior Architect/Architecte principalOntario Health / Santé Ontario | $112,765Benefits $384Total $113,149 |
| 2022 | Architect, Solutions/Architecte, SolutionsOntario Health | $103,600Benefits $352Total $103,952 |
| 2021 | Solution Architect/Architecte des solutionsOntario Health | $100,957Benefits $378Total $101,335 |
| 2020 | Solution Architect/Achitecte des solutionsOntario Health | $102,804Benefits $535Total $103,339 |
Take-Home Pay
(After Tax) · 2025 estimate
Of the $121,890 Derrick T Lau earned in 2025, roughly $87,961 would remain after income tax, CPP and EI, an all-in deduction rate of about 27.8%. For comparison, the median Senior Architect on the 2025 list was paid $128,637; this salary is about 5% less. Derrick T Lau has appeared on the list 6 times since 2020. Most Crown Agencies employees belong to PSPP or OPTrust, so actual take-home is likely another 7–10% lower after pension contributions.
- Estimated net pay
- ~$87,961
- Effective income-tax rate (excl. CPP/EI)
- ~23.3%
- CPP + EI contributions
- ~$5,507
- All-in deduction rate (incl. CPP/EI)
- ~27.8%
- vs. 2025 Senior Architect median
- −5%
Where does $121,890 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.