Calculate Income Tax Ontario 2018
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Calculating your Ontario income tax for 2018 involves understanding the progressive tax rates, deductions, and credits available to residents. This guide explains how to calculate your tax liability accurately using the 2018 tax rates and provides practical information to help you file your return.
How to Calculate Ontario Income Tax 2018
Calculating your Ontario income tax involves several steps. First, determine your taxable income by subtracting eligible deductions from your total income. Then apply the progressive tax rates to calculate your tax liability. Finally, subtract any tax credits to arrive at your final tax amount.
Formula
Ontario Income Tax = (Taxable Income × Progressive Tax Rate) - Tax Credits
Let's break this down:
- Calculate your total income from all sources (employment, self-employment, investments, etc.).
- Subtract eligible deductions to determine your taxable income.
- Apply the progressive tax rates to your taxable income.
- Subtract any applicable tax credits to get your final tax amount.
Note
The 2018 Ontario tax rates are based on the federal and provincial tax brackets. Always verify your specific situation with a tax professional.
Ontario Tax Brackets 2018
The Ontario tax system uses progressive tax rates, meaning higher income levels are taxed at higher rates. The 2018 tax brackets are as follows:
| Taxable Income | Federal Rate | Ontario Rate | Combined Rate |
|---|---|---|---|
| $0 - $45,282 | 15% | 5.05% | 20.05% |
| $45,282 - $90,563 | 20.5% | 9.15% | 29.65% |
| $90,563 - $140,388 | 26% | 11.16% | 37.16% |
| $140,388 - $200,000 | 29% | 12.16% | 41.16% |
| Over $200,000 | 33% | 13.16% | 46.16% |
The combined rates show the total tax rate applied to each bracket. For example, in the first bracket, the combined rate is 20.05%, which includes both federal and provincial taxes.
Common Ontario Tax Deductions
Deductions reduce your taxable income, lowering your overall tax liability. Common Ontario deductions include:
- RRSP contributions (up to a maximum limit)
- Medical expenses (over 3% of income)
- Donations to registered charities
- Home office expenses
- Union dues
- Education expenses
Important
Always consult the Canada Revenue Agency (CRA) for the most current deduction rules and limits.
Ontario Tax Credits
Tax credits directly reduce your tax liability dollar-for-dollar. Common Ontario tax credits include:
- Ontario Child Benefit
- Ontario Disability Support Program (ODSP) credit
- Ontario Trillium Benefit
- Ontario Homeowners' Property Tax Credit
- Ontario Sales Tax Credit
These credits can significantly reduce your tax bill, especially for families and low-income individuals.
Worked Example
Let's calculate the Ontario income tax for a single individual with a taxable income of $50,000 in 2018.
- Determine the tax bracket: $50,000 falls in the second bracket ($45,282 - $90,563).
- Calculate the taxable amount in the second bracket: $50,000 - $45,282 = $4,718.
- Calculate the tax for the second bracket: $4,718 × 29.65% = $1,407.54.
- Calculate the tax for the first bracket: $45,282 × 20.05% = $9,071.54.
- Total tax before credits: $9,071.54 + $1,407.54 = $10,479.08.
- Subtract any applicable tax credits (assuming no credits for this example).
The total Ontario income tax for this individual would be $10,479.08.
FAQ
What is the Ontario tax rate for 2018?
The Ontario tax rate for 2018 is progressive, ranging from 20.05% for the first bracket to 46.16% for the highest bracket.
How do I calculate my Ontario taxable income?
Subtract eligible deductions from your total income to determine your taxable income. Common deductions include RRSP contributions and medical expenses.
What are the most common Ontario tax credits?
Common Ontario tax credits include the Ontario Child Benefit, ODSP credit, and Ontario Trillium Benefit.
How do I file my Ontario income tax return?
You can file your Ontario income tax return online through the CRA website or by mail. Make sure to include all necessary documentation.
When is the Ontario income tax deadline?
The Ontario income tax deadline for 2018 was June 30, 2019. Always check the CRA website for the most current deadline.