Katarzyna Helena Niewiadomski
Waterloo Catholic District School Board/Teacher
2025 Salary
$118,431Total compensation $118,431, including $0 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
#495Waterloo Catholic District School Board
Years on List
12025–2025
Peak Salary
$118,4312025
Full 2025 roster at Waterloo Catholic District School Board →·See where $118,431 ranks →
Full History
2025–2025
| Year | Position | Salary |
|---|---|---|
| 2025 | TeacherWaterloo Catholic District School Board | $118,431Benefits $0Total $118,431 |
Take-Home Pay
(After Tax) · 2025 estimate
In 2025, Katarzyna Helena Niewiadomski's $118,431 salary works out to roughly $86,004 after income tax, CPP and EI — an all-in deduction rate of about 27.4%. That is in line with the 2025 median of $118,059 for Teacher on the Sunshine List. This is Katarzyna Helena Niewiadomski's first appearance on the Sunshine List. 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
- ~$86,004
- Effective income-tax rate (excl. CPP/EI)
- ~22.7%
- CPP + EI contributions
- ~$5,507
- All-in deduction rate (incl. CPP/EI)
- ~27.4%
- vs. 2025 Teacher median
- about even
Where does $118,431 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.