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Carolyn Mayor-Seymour

Ontario Shores Centre for Mental Health Sciences/Registered Nurse

2025 Salary

$138,160

Total compensation $138,633, including $473 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

#98

Ontario Shores Centre for Mental Health Sciences

Years on List

2

2023–2025

Peak Salary

$138,160

2025

Full 2025 roster at Ontario Shores Centre for Mental Health Sciences →·See where $138,160 ranks →

Total Compensation History

Total compensation by yearLine chart of 2 yearly values of total compensation, from $107,577 in 2023 to $138,633 in 2025. No data for 2024.$100K$110K$120K$130K$140K20232025
Total compensation, 2023–2025. Axis starts at $100,000, the Sunshine List disclosure threshold.

Full History
2023–2025

$107,119 in 2023 is worth about $111,960 in 2025 dollars.

Full salary history, by year
YearPositionSalary
2025Registered NurseOntario Shores Centre For Mental Health Sciences$138,160Benefits $473Total $138,633
2023Registered NurseOntario Shores Centre For Mental Health Sciences$107,119Benefits $458Total $107,577

Take-Home Pay
(After Tax) · 2025 estimate

Carolyn Mayor-Seymour was paid $138,160 in 2025; after income tax, CPP and EI that is roughly $97,168, an effective income-tax rate of about 25.7%. Compared with 2023, when the figure was $107,119, that is a rise of about 29%. Within Ontario Shores Centre for Mental Health Sciences, Carolyn Mayor-Seymour's total compensation of $138,633 was the #98 of 450, against a median salary of $123,711. After pension contributions (probably HOOPP in this sector), take-home is usually a further 7–10% lower.

Estimated net pay
~$97,168
Effective income-tax rate (excl. CPP/EI)
~25.7%
CPP + EI contributions
~$5,507
All-in deduction rate (incl. CPP/EI)
~29.7%
vs. 2025 Registered Nurse median
+17%

Where does $138,160 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.

Also at Ontario Shores Centre for Mental Health Sciences
2025

View all 450 employees at Ontario Shores Centre for Mental Health Sciences (2025) →