How to change your return

Avoid delays by submitting adjustment requests electronically

For faster service, submit your request electronically using Change my Return in My Account or ReFILE.

For more information, see Check CRA processing times.

You can request to amend your income tax and benefit return by changing the amount entered on specific lines of your return. Wait until you receive your notice of assessment before amending your return.

Do not file a new return for that year unless the return you want to amend was assessed under subsection 152(7) of the Income Tax Act.

Change your return online

My Account

My Account is a secure online service that lets you view your income tax and benefit information and manage your tax affairs online.

Change my return

Change my return is a tool in My Account that allows you to make adjustment requests for the 10 previous calendar years. For example, a request made in 2024 must relate to tax year 2014 or later to be considered.

This tool makes it easy to change your return online by guiding you through common changes such as adding tax information slips and claiming the disability tax credit.

As well, it includes questions and messages when the CRA:

For information on processing times, see Processing times.

Additional options in Change my return

You can make an online request to apply these losses:

You can also make an online election to split pension income.


We will only process your request if both the transferring spouse or common-law partner and the receiving spouse or common-law partner have asked for an adjustment to the elected split-pension amount. For more information, see How do you split your pension income? -

You can use Change my return to change certain non-resident returns, such as those for:

For more information on filing a non-resident return, see Non-residents of Canada.

You cannot use Change my return to change a:

In any of these cases, you can make your request by mail.


ReFILE is an online service that lets individuals and EFILE service providers send online adjustment requests for income tax and benefit returns with certified NETFILE software and EFILE software.

To use ReFILE, you must have been filed your income tax and benefit return electronically.

Individuals who used NETFILE can use ReFILE to make adjustment requests for 2023, 2022, 2021 and 2020 returns.

EFILE service providers can send adjustment requests for 2023, 2022, 2021 and 2020 returns. If you have questions about the functionality available in your software package, contact your software provider.

The CRA has improved features in ReFILE to include questions and messages when the CRA:

New options in ReFILE

EFILE service providers can now use ReFILE to request changes for returning residents to Canada and immigrant returns starting with the 2023 tax year. This option is not available for NETFILE.

You cannot use ReFILE to:

For more information, go to ReFILE.

After you have requested changes to your income tax and benefit return, keep all your receipts and supporting documents in case the CRA asks to see them later. Only provide supporting documents when the CRA asks for them, and send them using the method requested in the CRA’s letter.

Change your return by mail

For faster service, submit your request for changes electronically using Change My Return in My Account or ReFILE.

If you have to make your adjustment request by mail, send the following to your tax centre:

Send your current year return separately from any request to change your return for another year.

Processing times

The CRA’s goal is to send you a notice of reassessment as well as any refund, or a letter explaining why the CRA did not make the changes you asked for, within:

For more information, go to Service Standards in the CRA.

Complex adjustment requests

Some change requests are more complex and will take longer to process because of the additional verification required. They include adjustments related to:

Processing your request is the CRA’s highest priority. The time required to complete a complex adjustment request varies with the type of adjustment and the circumstances involved. The CRA’s goal is to issue your notice of reassessment or a letter within 20 weeks of receiving your complex adjustment request. This excludes requests filed for international and non-resident returns and emigrants. The CRA constantly strives to find the right balance between processing timeliness and the need to protect the integrity of the self-assessment tax system.

When the review is done

The CRA will send you one of the following:

To change your address, go to Update your CRA information: Change your address.

Forms and publications

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