Ontario Income Tax 2026: Complete Guide for Employees & Self-Employed
Ontario residents pay combined federal and provincial income tax on earnings. This guide explains Ontario's unique tax system, including provincial brackets, surtax, health premium, and optimization strategies.
Ontario Tax Brackets & Rates (2026)
Ontario has 5 provincial tax brackets applied on top of federal brackets:
| Taxable Income (CAD) | Ontario Rate | Combined Federal + Ontario |
|---|---|---|
| $0 - $51,446 | 5.05% | 20.15% |
| $51,447 - $102,894 | 9.15% | 24.15% |
| $102,895 - $150,000 | 11.16% | 36.16% |
| $150,001 - $220,000 | 12.16% | 41.16% |
| Over $220,000 | 13.16% | 46.16% (+ surtax) |
Ontario Surtax: Extra Tax on High Incomes
Ontario applies a 20% surtax on provincial tax exceeding $5,315. This means high earners pay extra:
- If Ontario tax = $5,315: No surtax
- If Ontario tax = $6,315: Surtax = ($6,315 - $5,315) × 20% = $200
- If Ontario tax = $10,000: Surtax = ($10,000 - $5,315) × 20% = $937
Surtax primarily affects earners above approximately $150,000-$200,000 annually.
Ontario Health Premium (1.25% for High Earners)
Earners above $200,000 pay Ontario Health Premium at 1.25% of income exceeding $200K. This is separate from income tax:
- Income $200,000: No premium
- Income $250,000: Premium = ($250,000 - $200,000) × 1.25% = $625
- Income $300,000: Premium = ($300,000 - $200,000) × 1.25% = $1,250
CPP & EI Contributions
Canada Pension Plan (CPP): 5.95% on earnings between $3,500 and ~$68,500 (max ~$3,867/year in 2026). Self-employed pay double (11.90%).
Employment Insurance (EI): 1.62% in Ontario (employee rate), capped at maximum insurable earnings (~$1,049/year in 2026). Self-employed can opt in.
How to Reduce Ontario Income Tax
- Maximize RRSP Contributions: Each $1,000 in RRSP reduces taxable income by $1,000, saving ~$530 in combined federal + Ontario tax.
- Use RRSP Tax-Free Growth: Investments inside RRSP grow tax-free until withdrawal.
- Spousal RRSP: Income splitting tool to equalize household income and reduce combined taxes.
- Claim All Credits: Tuition, education, medical, caregiver, charitable donations.
- Tax-Loss Harvesting (Investments): Offset capital gains with capital losses.
Ontario vs Other Provinces
How does Ontario compare?
- vs Alberta: Alberta has no provincial sales tax (PST) and lower tax rates (max 15% provincial). Ontario's top rate is 13.16% + surtax.
- vs Quebec: Quebec has unique rates and RRPP rules. Comparable rates but different deductions.
- vs BC: BC has lower rates. Combined rates similar to Ontario.
- Ontario Takeaway: Ontario ranks middle among provinces. If minimizing taxes is priority, consider Alberta or BC.
Ontario Income Tax FAQ
Q: When is Ontario income tax due?
A: Ontario income tax is withheld at source from paycheques (payroll deductions). You file your tax return by June 15 annually with CRA.
Q: Can I reduce my Ontario taxes if self-employed?
A: Yes. Deduct all business expenses (home office, supplies, vehicle, professional fees). Pay CPP at double rate (11.90%). File quarterly tax installments if projected tax exceeds $3,000.
Q: What if I move out of Ontario?
A: Your provincial tax changes to your new province. File a return covering both periods to CRA.
Related Calculators
Disclaimer: This calculator provides estimates for 2026. Actual tax depends on all income sources, credits, deductions, and personal circumstances. File with CRA for official tax assessment.