Personal Income Tax

The 2014 Ontario Budget tabled on July 14 included a number of proposed tax and benefit related changes. Learn more.


Ontario personal income tax is an annual tax collected from individuals who are Ontario residents on the last day of the tax year or have income earned in Ontario for the tax year. Ontario personal income tax includes the Ontario Health Premium. The Canada Revenue Agency administers Ontario’s personal income tax system.

Calculating the tax

Ontario personal income tax is calculated separately from your federal income tax. There are four Ontario income tax brackets and four corresponding tax rates.

A two-tiered Ontario surtax is also calculated if the amount of Ontario personal income tax you owe exceeds certain amounts.

View: Personal income tax rates and credits

Filing an income tax return

You must file an income tax and benefit return if you have to pay tax for the year or if the Canada Revenue Agency sent you a request to file a return.

Even if you don't owe personal income tax, you should file a return. By filing a return, you could qualify for a tax refund, credit, or benefit.

Do I need to file a return?

When completing your return, you may need to complete and include three Ontario forms: ON428, ON479 and ON-BEN.

Download form ON428, Ontario Tax

Download form ON479, Ontario Credits

Download form ON-BEN, Application for the Ontario Trillium Benefit and the Ontario Senior Homeowners' Property Tax Grant

After the return has been processed, the Canada Revenue Agency will mail you a notice of assessment showing any changes or corrections made to the return (such as identifying and correcting a math error). If you are entitled to a tax refund, the Canada Revenue Agency will issue a refund.

Get your General Income Tax and Benefit package from the Canada Revenue Agency

    Ontario Tax Credits

    A variety of Ontario Tax Credits may be available to you when you file your return. There are two types of credits: non-refundable and refundable.

Non-refundable tax credits

Non-refundable tax credits help reduce or eliminate the amount of Ontario personal income tax you owe. Excess credits are not refunded.

Most Ontario non-refundable tax credits are similar to federal non-refundable tax credits, although the amounts may differ (e.g., adoption tax credit, disability tax credit, and caregiver tax credit). The rules for claiming these credits are the same as the rules for the federal tax credits. You claim the non-refundable tax credits on form ON428.

Non-refundable tax credits

Non-refundable tax credits help reduce or eliminate the amount of Ontario personal income tax you owe. Excess credits are not refunded.

Most Ontario non-refundable tax credits are similar to federal non-refundable tax credits, although the amounts may differ (e.g., adoption tax credit, disability tax credit, and caregiver tax credit). The rules for claiming these credits are the same as the rules for the federal tax credits. You claim the non-refundable tax credits on form ON428.

Refundable tax credits

Certain refundable tax credits help reduce or eliminate the amount of Ontario income tax you owe. Excess credits may be paid as a refund after your return is assessed — even if you do not pay any income tax (e.g., the Ontario children's activity tax credit and the Ontario political contribution tax credit). You claim these refundable tax credits on form ON479.

Three refundable tax credits are paid based on information reported on your previous year's return (the Ontario Sales Tax Credit, the Ontario Energy and Property Tax Credit and the Northern Ontario Energy Credit). The credit amounts are based on a number of factors, including the size of your family, where you live, your age and income. The payments of these three credits are combined into a single benefit called the Ontario Trillium Benefit.

You need to file a return annually to get these credits.

Get your General Income Tax and Benefit package from the Canada Revenue Agency

Read on: Ontario Trillium Benefit

Ontario Personal Income Tax Rates and Credits

Benefit payment dates – Canada Revenue Agency

Paying the tax

Source deductions

Your employer deducts personal income tax from your wages and sends the tax to the Canada Revenue Agency on a regular basis throughout the year. When you file your return, you may already have paid all or part of your tax.

Instalment payments

You may have income that hasn't had enough or any tax withheld. This can happen if you receive rental income, investment income, self-employment income, certain pension income, or income from more than one job. Since your annual tax bill could be very large, you may have to pay your income tax to the Canada Revenue Agency by instalments (smaller amounts several times during the year).

Read on: Paying your income tax by instalments

Payment with return

If you have a balance owing after completing your return you will need to pay the tax you owe to the Canada Revenue Agency by April 30.

You can make the payment in several ways, including electronically, at your financial institution, and by cheque or money order.

Read on: How to make your payment

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All About Your Tax Return

Learning About Taxes – Canada Revenue Agency

Ontario Health Premium

Ontario Trillium Benefit

Maximum Amounts, Income Ranges and Phase-out Rates Chart

Do you need help completing your return?

If you are unable to prepare your return yourself, the Community Volunteer Income Tax Program may be able to help you.

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