Income Tax Calculator Ontario 2017

Calculate your 2017 Ontario income tax with this free online calculator. The tool accounts for both federal and provincial tax rates, deductions, and tax credits to provide an accurate estimate of your tax liability.

How to Use This Calculator

Enter your total taxable income for 2017 in the calculator below. The tool will automatically calculate your federal and provincial tax liabilities based on the 2017 tax rates. You can also adjust for deductions and tax credits if applicable.

Note

This calculator provides an estimate. For exact tax calculations, consult a tax professional or use official government tax forms.

Ontario Tax Rates 2017

The 2017 Ontario tax rates are as follows:

Tax Bracket	Federal Rate	Ontario Rate
$0 - $45,282	15%	5.05%
$45,282 - $90,563	20.5%	9.15%
$90,563 - $140,388	26%	11.16%
$140,388 - $200,000	29%	12.16%
Over $200,000	33%	13.16%

The combined federal and provincial rates create progressive tax brackets that increase as income rises.

How Ontario Income Tax Works

Ontario income tax is calculated using a progressive tax system where different portions of your income are taxed at different rates. The calculation process involves:

Determining your taxable income by subtracting eligible deductions from your total income
Applying the federal and provincial tax rates to the appropriate portions of your taxable income
Calculating any applicable tax credits
Subtracting tax credits from your tax liability to arrive at your final tax amount

Formula

Tax Liability = (Taxable Income × Federal Rate) + (Taxable Income × Provincial Rate) - Tax Credits

Worked Example

Let's calculate the tax for someone earning $60,000 in 2017 with no deductions or tax credits.

Federal tax: $60,000 × 20.5% = $12,300
Provincial tax: $60,000 × 9.15% = $5,500
Total tax liability: $12,300 + $5,500 = $17,800

This example shows how the progressive tax system applies different rates to different portions of income.

Frequently Asked Questions

What is the difference between federal and provincial tax rates?

Federal tax rates apply to all Canadian residents, while provincial rates vary by province. Ontario has its own set of tax brackets that combine with federal rates to determine your total tax liability.

How do deductions affect my tax calculation?

Deductions reduce your taxable income, which can lower your overall tax liability. Common deductions include RRSP contributions, medical expenses, and union dues.

What are tax credits?

Tax credits directly reduce your tax liability dollar-for-dollar. They are different from deductions, which only reduce your taxable income. Examples include the Canada Child Benefit and the Ontario Trillium Benefit.

Is this calculator accurate for all income levels?

This calculator provides a good estimate for most income levels. However, for precise calculations, especially for complex situations, consult a tax professional or use official government tax forms.