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How to File a Previous Year Tax Return in Canada

This guide explains how to file a prior year tax return in Canada, what years you can still submit, and the easiest ways to do it.

Arani Tharmalingam avatar
Written by Arani Tharmalingam
Updated over 2 weeks ago

If you missed filing your taxes in a previous year, you are not alone. Many Canadians fall behind on tax filing for different reasons such as life changes, self employment income, or simply not knowing where to start. The good news is that you can still file previous year tax returns and get back on track.

Can You File a Previous Year Tax Return

Yes, you can file a tax return for past years. The Canada Revenue Agency allows Canadians to catch up on unfiled returns going back up to 10 years. Filing late is always better than not filing at all because you may still qualify for refunds, benefits, and credits.

Even if you owe taxes, filing sooner can help reduce penalties and interest.

Why You Should File Old Tax Returns

There are several important reasons to file previous year returns

  • You may be owed a refund

  • You may qualify for benefits and credits

  • You avoid ongoing late filing penalties

  • You stay compliant with CRA requirements

  • You can access programs that require up to date filings

Many Canadians are surprised to learn they are eligible for refunds even after several years.

How to File Previous Year T1 Personal Tax Returns

If you need to file a personal T1 return for a past year, your options depend on how old the return is.

For 2018 and Later Personal Tax Returns (on CloudTax)

You can easily file prior year personal returns from 2018 onward using CloudTax.

CloudTax offers pay what you want online tax filing for T1 personal returns. This makes it affordable and accessible for anyone catching up on taxes.

You can start here: app.cloudtax.ca

The platform guides you step by step and is ideal for individuals who want a simple DIY approach.

For 2017 and Older Personal Tax Returns (on CloudTax)

For returns from 2017 and earlier, it is best to work with a tax expert.

You can book a call with a tax expert here: https://cal.com/team/done-for-you

This option is ideal if you want peace of mind and accuracy, and we handle the filings from start to finish.

Filing Multiple Years at Once

If you are catching up on multiple years of tax returns, you may qualify for a multi year discount.

You can email [email protected] to receive a quote based on your tax situation. The team will review your scenario and provide transparent pricing.

This is especially helpful if you are filing several years together and want professional support.

How to File Previous Year T2 Corporate Tax Returns

If you need to file a corporate tax return for a prior year, there are two main options depending on your needs.

DIY T2 Corporate Filing

If you are comfortable filing yourself, you can use CloudTax DIY T2 software.

You can file corporate returns for periods between January 01 2023 and May 31 2026 here: https://www.cloudtax.ca/t2-basic

This option works well for simple corporations with straightforward financials.

Done For You Corporate Tax Filing

If you prefer a hands off experience or need help with older corporate filings, professional assistance is available.

This is ideal for business owners who want accuracy and expert guidance.

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