How to Calculate Income Tax in Ontario Canada

Ontario Tax Brackets

Ontario uses a progressive tax system where different income ranges are taxed at different rates. The 2023 tax brackets for individuals are:

• First $49,020: 5.05%
• $49,020 to $98,040: 9.15%
• $98,040 to $150,000: 11.16%
• $150,000 to $220,000: 12.16%
• Over $220,000: 13.16%

These rates apply to taxable income after deductions. The federal tax rates are different, so you'll need to calculate both provincial and federal taxes.

How to Calculate Your Tax

Calculating your Ontario income tax involves several steps:

1. Calculate your taxable income by subtracting eligible deductions from your total income
2. Apply the Ontario tax rates to your taxable income
3. Calculate federal income tax using federal tax brackets
4. Add provincial and federal taxes to get your total income tax

Use our calculator to perform these calculations quickly and accurately.

Deductions and Tax Credits

You can reduce your taxable income with eligible deductions and credits:

Common Deductions

• RRSP contributions
• Charitable donations
• Medical expenses
• Home office expenses
• Union dues

Tax Credits

• Canada Child Benefit
• Ontario Child Benefit
• Climate Action Incentive
• Home Buyers' Plan

Worked Example

Let's calculate the income tax for someone with $100,000 in total income and $20,000 in eligible deductions.

1. Taxable income = $100,000 - $20,000 = $80,000
2. Ontario tax:
   • $49,020 × 5.05% = $2,451.10
   • ($80,000 - $49,020) × 9.15% = $2,638.90
   • Total Ontario tax = $2,451.10 + $2,638.90 = $5,090.00
3. Federal tax (using 2023 federal brackets):
   • $53,359 × 15% = $8,003.85
   • ($80,000 - $53,359) × 20.5% = $5,338.05
   • Total federal tax = $8,003.85 + $5,338.05 = $13,341.90
4. Total income tax = $5,090.00 + $13,341.90 = $18,431.90

This person would owe approximately $18,432 in income tax for the year.