Rosanna Difonzo
Ontario Power Generation/Business Support Supervisor
2025 Salary
$105,124Total compensation $111,493, including $6,369 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
#9,773Ontario Power Generation
Years on List
22024–2025
Peak Salary
$105,1242025
Full 2025 roster at Ontario Power Generation →·See where $105,124 ranks →
Total Compensation History
Full History
2024–2025
$102,329 in 2024 is worth about $104,427 in 2025 dollars.
| Year | Position | Salary |
|---|---|---|
| 2025 | Business Support SupervisorOntario Power Generation | $105,124Benefits $6,369Total $111,493 |
| 2024 | Business Support SupervisorOntario Power Generation | $102,329Benefits $5,402Total $107,730 |
Take-Home Pay
(After Tax) · 2025 estimate
Rosanna Difonzo was paid $105,124 in 2025; after income tax, CPP and EI that is roughly $77,534, an effective income-tax rate of about 21.0%. That is about 3% more than the $102,329 paid in 2024. Rosanna Difonzo has appeared on the list twice since 2024. 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
- ~$77,534
- Effective income-tax rate (excl. CPP/EI)
- ~21.0%
- CPP + EI contributions
- ~$5,507
- All-in deduction rate (incl. CPP/EI)
- ~26.2%
Where does $105,124 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.