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Ontario Federal Tax Calculator 2018

Reviewed by Calculator Editorial Team

Calculate your 2018 Ontario federal tax liability using this official tax calculator. This tool provides an estimate of your federal tax based on your taxable income and the 2018 tax brackets. The calculator follows the official tax rates and brackets for the year 2018.

How to Use This Calculator

Using this Ontario Federal Tax Calculator 2018 is simple:

  1. Enter your total taxable income for the year 2018 in the "Taxable Income" field.
  2. Click the "Calculate" button to compute your federal tax liability.
  3. Review the results, which will show your estimated federal tax amount.
  4. Use the "Reset" button to clear the form and start over.

The calculator uses the official 2018 Ontario federal tax brackets to provide an accurate estimate of your tax liability. The results are displayed in Canadian dollars (CAD).

Tax Calculation Formula

The Ontario Federal Tax Calculator 2018 uses the following formula to calculate your federal tax liability:

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

Where:

  • Taxable Income is your total income minus any deductions or exemptions
  • Tax Rate is the applicable federal tax rate for each income bracket

The calculation is performed by applying the tax rates to each income bracket, starting from the lowest bracket up to your total taxable income. The sum of all bracket calculations gives your total federal tax liability.

2018 Ontario Federal Tax Brackets

The 2018 Ontario federal tax brackets are as follows:

Income Range Tax Rate
$0 - $45,282 15%
$45,282 - $90,563 20.5%
$90,563 - $140,388 26%
$140,388 - $200,000 29%
Over $200,000 33%

These brackets are based on the official 2018 federal tax rates for Ontario residents. The calculator applies these rates to your taxable income to determine your federal tax liability.

Example Calculation

Let's look at an example to see how the Ontario Federal Tax Calculator 2018 works. Suppose you have a taxable income of $100,000 for the year 2018.

  1. First, calculate the tax for the first bracket ($0 - $45,282):

    2. $45,282 × 15% = $6,792.30

  2. Next, calculate the tax for the second bracket ($45,282 - $90,563):

    3. ($90,563 - $45,282) × 20.5% = $9,381.09

  3. Finally, calculate the tax for the remaining income ($90,563 - $100,000):

    4. ($100,000 - $90,563) × 26% = $2,243.58

  4. Add up all the bracket calculations to get the total federal tax:

    5. $6,792.30 + $9,381.09 + $2,243.58 = $18,416.97

So, for a taxable income of $100,000, your estimated 2018 Ontario federal tax liability would be $18,416.97.

Frequently Asked Questions

What is the Ontario Federal Tax Calculator 2018?

The Ontario Federal Tax Calculator 2018 is an online tool that estimates your federal tax liability for the year 2018 based on your taxable income. It uses the official 2018 federal tax brackets for Ontario residents.

How accurate is the Ontario Federal Tax Calculator 2018?

The calculator provides an estimate based on the official 2018 federal tax brackets. For exact figures, you should consult a tax professional or use official tax preparation software.

What information do I need to use this calculator?

You need to know your total taxable income for the year 2018. This is typically your total income minus any deductions or exemptions.

Can I use this calculator for other years?

No, this calculator is specifically designed for the 2018 tax year. For other years, you would need to use a calculator designed for that specific tax year.

Is the Ontario Federal Tax Calculator 2018 free to use?

Yes, the Ontario Federal Tax Calculator 2018 is free to use. There are no hidden fees or charges associated with using this tool.