Tax Calculator Ontario 2021

Calculate your 2021 Ontario income tax with this official tax calculator. Get your estimated tax liability, tax brackets, and deductions for the 2021 tax year.

How to Use This Calculator

This tax calculator for Ontario 2021 helps you estimate your provincial income tax based on your taxable income. Follow these steps:

Enter your total taxable income for the 2021 tax year in the calculator.
Select your filing status (Single, Married, or Other).
Click "Calculate" to see your estimated tax liability.
Review the breakdown of your tax calculation.

The calculator uses the official 2021 Ontario tax brackets and rates. For a more accurate result, consult with a tax professional or use the official CRA forms.

Ontario Tax Brackets 2021

Ontario uses a progressive tax system with different tax rates for different income levels. Here are the 2021 tax brackets for Ontario:

Taxable Income	Tax Rate
$0 - $44,701	5.05%
$44,702 - $89,404	9.15%
$89,405 - $150,000	11.16%
$150,001 - $220,000	12.16%
Over $220,000	13.16%

These rates apply to Ontario residents. Federal tax rates are different and are not included in this calculator.

How Your Tax Is Calculated

Your Ontario income tax is calculated using the progressive tax brackets shown above. The formula used is:

Ontario Tax = Sum of (Taxable Income × Tax Rate) for each bracket

For example, if your taxable income is $50,000:

$44,701 × 5.05% = $2,261.36
($50,000 - $44,701) × 9.15% = $528.49
Total tax = $2,261.36 + $528.49 = $2,789.85

This calculator automatically applies the correct tax rates based on your income level.

Common Deductions and Credits

Several deductions and credits can reduce your taxable income and lower your tax bill. Common ones include:

Canada Pension Plan (CPP) contributions - Up to 2.5% of your taxable income
Employment Insurance (EI) premiums - Up to 1.66% of your taxable income
RRSP contributions - Up to 18% of your taxable income
Medical expenses - Over 3% of your income
Donations - To registered charities

Note: This calculator does not automatically apply deductions. You must manually subtract eligible deductions from your taxable income before calculating your tax.

Example Calculation

Let's calculate the tax for a single filer with $60,000 taxable income:

$44,701 × 5.05% = $2,261.36
($89,404 - $44,701) × 9.15% = $4,139.61
($60,000 - $89,404) × 11.16% = $818.92
Total tax = $2,261.36 + $4,139.61 + $818.92 = $7,219.89

Your estimated Ontario income tax for $60,000 taxable income is $7,219.89.

Frequently Asked Questions

Is this calculator official?: This calculator uses official 2021 Ontario tax brackets and rates. For official tax purposes, consult the Canada Revenue Agency (CRA) or a tax professional.
Does this calculator include federal tax?: No, this calculator only calculates Ontario provincial tax. Federal tax is calculated separately using different brackets and rates.
Can I use this calculator for 2022 taxes?: No, this calculator is specifically for 2021 tax year. Tax rates and brackets change each year, so use the appropriate calculator for your filing year.
How accurate is this calculator?: This calculator provides an estimate based on the official tax brackets. For precise tax calculations, use the official CRA forms or consult a tax professional.
What about deductions and credits?: This calculator does not automatically apply deductions. You must manually subtract eligible deductions from your taxable income before calculating your tax.