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3 things You Need To Know About 7-Year Tax Retention Requirements

Updated: Feb 2, 2023

We often get asked the question, how long you should keep your tax documents for CRA purposes?

The common answer that you can find easily is 7 years, but there is a little bit more to it: the key question is when do the 7 years start?

As a rule, it starts from 7 years after you received the notice of assessment from CRA related to that year.

Here are a few examples

#1 – Common everyday purchases

You are looking at your 2018 tax return coming due. So, say you purchase something in January 2018 that was a business expense, and you are going to file your tax return between March and say the end of June. You get your notice of assessment a few weeks after that.

That notice of assessment date is when your clock starts ticking for that 7-year timeline.

So, the clock for that receipt is from January 2018, you’ll already going to be a year past its date before you are getting your notice of assessment and you will have to keep it for 7 years after that.

This is the commonly understood one. Here’s the less-known one.

#2 – Capital purchase

When you buy a property, how long do you have to keep the purchase documents?

Well, it’s not 7 years after you buy the property, it’s 7 years after you dispose of it.

So, you have to keep all of those receipts for as long as you own the property.

Vehicles are the same thing. For all those big assets that get capitalized, you should keep the receipts until you dispose of them or chuck them off, and then the 7 years clock starts ticking when you received the Notice of Assessment for the related year.

If you have a corporation, I recommend that some items in the corporation you should keep for the life of the corporation:

  • a copy of your financial statements

  • your corporate tax returns

  • documents for any elections or reorganization.

On the personal side

CRA will tell you that you can keep your personal tax return for 7 years and all the receipts and details of it you can probably chuck. However, some of those tax returns have items on them that might impact you for the rest of your life. I’m thinking about:

  • Capital losses, that can be carried over

  • Principal residence exemption election

  • Capital gain exemption used

  • Deemed disposition

If you know that your return has things like that in it, keep those until you pass away. That can be your executors’ job to get rid of those 7 years after they wrap up the estate.

Hopefully, that makes sense.

If this is news to you, I would recommend keeping a permanent file folder for some of those bigger items like property purchases, long-term assets, and company or corporation things. Keep those separate and then keep your box of the current year stuff that is consumable and that you can get rid of in the 7-year time frame.

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