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Calculate Tax Ontario 2021

Reviewed by Calculator Editorial Team

Use this Ontario income tax calculator to estimate your 2021 provincial tax liability. The calculator uses the official 2021 tax rates and brackets, helping you understand how much tax you'll owe based on your income and deductions.

How to Calculate Ontario Income Tax 2021

The Ontario government uses a progressive tax system where your tax rate increases as your income rises. Here's how to calculate your Ontario income tax for 2021:

  1. Determine your total taxable income for 2021
  2. Apply the Ontario tax brackets to calculate provincial tax
  3. Subtract eligible deductions and credits
  4. Calculate your final provincial tax liability

The Ontario government provides a tax calculator on their website, but this calculator offers a simplified version that's easy to use and understand.

Ontario Tax Brackets for 2021

Ontario uses a progressive tax system with the following tax brackets for 2021:

Taxable Income Tax Rate
$0 - $44,703 5.05%
$44,704 - $89,407 9.15%
$89,408 - $150,000 11.16%
$150,001 - $220,000 12.16%
$220,001+ 13.16%

These rates apply to Ontario residents who are not eligible for the Ontario Trillium Benefit. The Trillium Benefit reduces the tax rate for lower-income earners.

Common Ontario Tax Deductions

You can reduce your taxable income by claiming eligible deductions. Common Ontario tax deductions include:

  • RRSP contributions
  • Charitable donations
  • Medical expenses
  • Home office expenses
  • Tuition and education expenses
  • Moving expenses
  • Union dues

Be sure to keep receipts and documentation for all deductions you claim.

Ontario Tax Credits

Tax credits directly reduce your tax liability rather than reducing your taxable income. Common Ontario tax credits include:

  • Ontario Trillium Benefit
  • Ontario Child Benefit
  • Ontario Disability Support Program
  • Ontario Homeowners' Property Tax Credit
  • Ontario Child Care Expense Credit

Eligibility for these credits varies based on your income, family situation, and other factors.

Worked Example

Let's calculate the Ontario income tax for a single resident with a taxable income of $60,000 in 2021.

  1. First $44,703 at 5.05% = $2,264.15
  2. Next $15,297 ($60,000 - $44,703) at 9.15% = $1,399.88
  3. Total provincial tax = $2,264.15 + $1,399.88 = $3,664.03

This example shows the progressive nature of the Ontario tax system. Higher-income earners pay a higher percentage of their income in taxes.

FAQ

What is the Ontario tax rate for 2021?
The Ontario tax rate for 2021 ranges from 5.05% to 13.16%, depending on your taxable income. See the tax brackets section for details.
How do I calculate my Ontario tax?
Use the Ontario tax calculator on this page or follow the step-by-step guide in the "How to Calculate" section.
What are the common Ontario tax deductions?
Common Ontario tax deductions include RRSP contributions, charitable donations, medical expenses, and home office expenses.
What are the Ontario tax credits?
Ontario tax credits include the Ontario Trillium Benefit, Ontario Child Benefit, and Ontario Disability Support Program.