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Your Home Sells Tax Free, Until One of These Four Things Happens


Your Home Sells Tax Free, Until One of These Four Things Happens

The principal residence exemption is a designation, not an automatic outcome. A family unit can designate only one property per year for years after 1981, and since the 2016 tax year the CRA will only allow the exemption if the disposition and designation are reported on your return. Converting a home to a rental is a change in use that triggers a deemed disposition at fair market value, so tax can arise on a property you have not sold.
Last updated: August 2026
One per family
Per year, since 1981
2016
Since when it must be reported to be allowed
No sale needed
A change in use is a deemed disposition

Most Canadians know their home sells tax free. Fewer know the exemption is a designation you have
to claim, that your family gets exactly one of them per year, and that you can trigger a tax bill on
a house you have not sold.

None of that matters until it does, usually at the worst moment. So here is the shape of it.

One per family, per year

For any year after 1981, a family unit can designate only one property as a
principal residence. The CRA treats the family unit as you, your spouse or common law partner, and
your unmarried children under 18.

This is the rule that catches couples who each owned a home before getting together. Two condos,
two owners, two exemptions, right up until the year they become spouses. From that point the family
gets one designation per year, and the years overlap in a way that has to be planned rather than
discovered.

It is a designation, not an automatic outcome

Since the 2016 tax year the CRA will only allow the exemption if you report the disposition and
make the designation on your return. That means Schedule 3, and Form T2091(IND) where required.

People who sold a home and did not report it because they assumed it was tax free are the ones who
end up dealing with this, and late designations are at the CRA’s discretion rather than a right.

You can trigger a tax bill on a property you have not sold

Converting your home to a rental, or a rental to your home, is a change in use, and the tax rules treat it as a deemed disposition at fair market value on the date of the change. No money moves, no property changes hands, and a gain can still be realised. This is the single most common way people in the GTA create a tax problem for themselves: they move, keep the old place, rent it out, and never mention it to an accountant. There are elections that can change the outcome, but they generally have to be filed on time, and they cannot be applied retroactively years later once the CRA asks.

Diagram of four situations that remove the principal residence exemption: two homes in one family, moving out and keeping the property, failing to report the sale, and selling within a short holding period.

Where this shows up in real GTA situations

1

You keep the old place and rent it out
The classic. A change in use with a deemed disposition, plus you now have two properties and one designation to allocate between them. Talk to an accountant before the tenant moves in, not after.
2

You rent out the basement
A partial change in use. The treatment depends on the scale of the rental use and whether structural changes were made and capital cost allowance was claimed. Small scale renting of part of a home is often handled differently from converting a property, which is exactly why it deserves advice rather than a guess.
3

You buy the next home before selling this one
Common in a slow market, and it creates a period where the family owns two properties. Which one gets designated for those years is a decision with a number attached.
4

You own a cottage
Two properties, one designation per year. Which one you designate for which years is a planning exercise, and the right answer depends on the gain per year of ownership on each, not on which one you like more.
5

You inherit a property
The estate and the beneficiaries have separate positions, and the property does not simply arrive tax free because it was a parent’s home.
The flipping rule sits on top of all of this

Separately from the exemption, residential property sold within a short holding period can be
treated as business income rather than a capital gain, which removes both the fifty percent
inclusion and the principal residence exemption. There are exemptions for genuine life events. If
you are buying with a short horizon, that is a conversation to have before you buy.

The honest summary

The principal residence exemption is generous and most people who use it never think about it
once. The people who get hurt are not tax dodgers. They are ordinary owners who kept a property, or
moved out and rented, or blended two households, and never mentioned it because nothing felt like a
sale.

If any of those describe you, the fix is a conversation with an accountant that probably costs a
few hundred dollars, and the alternative is a reassessment years later on a gain you have already
spent.

This is general information, not tax advice

I am a real estate agent. Principal residence rules involve designations, elections, timing and
facts specific to your ownership history, and the consequences of getting them wrong are real. Talk
to a CPA. The CRA’s Income Tax Folio S1-F3-C2 is the authoritative source and is public.

Sources: Canada Revenue Agency, Income Tax Folio S1-F3-C2, Principal Residence, and the CRA’s principal residence guidance on canada.ca, including the one property per family unit rule for years after 1981, the reporting and designation requirement for 2016 and later tax years, Form T2091(IND), and the change in use rules producing a deemed disposition at fair market value.

Where This Comes From

Written from Canada Revenue Agency guidance, principally Income Tax Folio S1-F3-C2, Principal Residence, and CRA’s principal residence pages on canada.ca. General information only; principal residence planning is a job for a CPA.

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Frequently Asked Questions

Can a married couple claim two principal residences?
No. For years after 1981 a family unit may designate only one property per year as a principal residence. The CRA treats the family unit as you, your spouse or common law partner, and your unmarried children under 18. This commonly affects couples who each owned a home before their relationship.
Do I have to report the sale of my home in Canada?
Yes. Since the 2016 tax year the CRA will only allow the principal residence exemption if you report the disposition and make the designation on your return, using Schedule 3 and Form T2091(IND) where required. Assuming a tax free sale needs no reporting is a common and costly mistake.
What happens if I rent out my house instead of selling it?
Converting a principal residence to a rental is a change in use, which is treated as a disposition at fair market value on the date of the change even though nothing is sold. A gain can be realised. There are elections that can change the outcome but they generally must be filed on time, so speak to an accountant before the tenant moves in.
Does renting out my basement affect my principal residence exemption?
It can, depending on the scale of the rental use, whether structural changes were made, and whether capital cost allowance was claimed. Small scale renting of part of a home is often treated differently from converting a property, which is precisely why it is worth confirming rather than assuming.
What about a cottage?
A cottage can qualify as a principal residence, but the family still has only one designation per year. Which property is designated for which years is a planning decision that should be driven by the gain per year of ownership on each, not by preference.

Related Reading

If you are thinking about keeping your current place and renting it out when you move, have the tax conversation before you do it rather than after. I can tell you what the property would realistically rent for and what it would sell for, which is usually the information the accountant needs.

Adam Nadler
Team Lead, Vision Real Estate
RE/MAX Your Community Realty, Brokerage
Website
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Selling

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