Free Income Tax Calculator Ontario 2017

Calculate your Ontario provincial income tax for the 2017 tax year using this free online calculator. Simply enter your taxable income and select your filing status to get your estimated tax liability.

How to Use This Calculator

Using this Ontario 2017 income tax calculator is simple:

Enter your total taxable income in the first field.
Select your filing status from the dropdown menu.
Click the "Calculate" button to see your estimated tax.
Review the results and chart showing your tax breakdown.

The calculator will show your total provincial tax, federal tax (for comparison), and net income after taxes.

Formula Used

Ontario provincial tax is calculated using progressive tax brackets. The formula is:

Provincial Tax = Sum of (Taxable Income × Bracket Rate) for each applicable bracket

Federal tax is calculated similarly using federal tax brackets.

For example, if your taxable income is $50,000 and you're single, the calculation would be:

$44,700 × 5.05% = $2,253.95
$5,300 × 9.15% = $482.35
$0 × 11.16% = $0
$0 × 12.16% = $0
$0 × 13.16% = $0
Total Provincial Tax = $2,736.30

Ontario 2017 Tax Rates

Filing Status	Tax Bracket	Marginal Rate
Single	$0 - $44,700	5.05%
	$44,701 - $89,400	9.15%
	$89,401 - $150,000	11.16%
	$150,001 - $220,000	12.16%
	$220,001+	13.16%

Note: These are Ontario provincial tax rates. Federal tax rates are different and would be added to the provincial tax for total tax liability.

Worked Example

Let's calculate the tax for a single filer with $75,000 taxable income:

$44,700 × 5.05% = $2,253.95
$30,300 × 9.15% = $2,766.45
$0 × 11.16% = $0
$0 × 12.16% = $0
$0 × 13.16% = $0
Total Provincial Tax = $5,020.40

After provincial tax, the filer would have $69,980 remaining.

Frequently Asked Questions

Is this calculator accurate for my 2017 Ontario taxes?: This calculator uses the 2017 Ontario tax rates and brackets. For exact figures, consult your tax professional or use official government tax software.
Does this calculator include federal taxes?: No, this calculator shows only provincial Ontario taxes. Federal taxes would be calculated separately and added to the provincial tax for your total tax liability.
What if I have deductions or credits?: This calculator provides an estimate based on taxable income. Actual tax owed may differ after deductions, credits, or other adjustments.
Can I use this for previous or future years?: This calculator is specifically for the 2017 tax year. Tax rates and brackets change each year, so use the appropriate calculator for other years.