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Principal Residence Exemption on a Rented Home in Canada

Find out whether renting out a home you once lived in ends the principal residence exemption in Canada, and for which years it can still apply.

Tax5 min readTSLBy the Treadstone Law Team · CanadaUpdated November 1, 2026
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Key takeaways
  • Renting out your whole home is a change in use that is treated as a sale at fair market value unless you make a subsection 45(2) election, while the small-use exception applies only to a partial change in use.
  • A subsection 45(2) election lets you designate the home as your principal residence for up to four years while it earns income, if you do not designate another property and remain a Canadian resident.
  • The election is not available if capital cost allowance was claimed on the property after 1984 and on or before the change in use.

Many people live in a home for years, move for work or family reasons, and rent the old place out instead of selling. Later, when they do sell, they wonder whether the rental period cost them the principal residence exemption.

Renting does not automatically end the exemption, but it does change how the rules apply. This article walks through what happens when you rent out the whole home, when you rent only part, and which years can still be covered.

This article covers Canadian federal tax law, which applies in every province.

Does renting kill the exemption?

Not automatically. A principal residence is a housing unit you own that is ordinarily inhabited in the year by you, your spouse or common-law partner, a former spouse or partner, or your child. The years you actually lived there can generally be designated. The question is what happens in the years when someone else lived there.

A change in use, such as moving from personal use to renting, is treated as a sale at fair market value and an immediate repurchase at the same amount, which becomes your new cost base. For a partial change, the proportionate share of fair market value is used. That deemed sale is the main tax risk of renting out a home.

Renting out the whole home: your options

You can elect under subsection 45(2) that there be no deemed sale when the home changes from personal use to income-producing use. You attach a signed letter to the return for the year of the change, describing the property and citing subsection 45(2). While the election is in place, no capital cost allowance can be claimed on the property, and you may designate it as your principal residence for up to four years while it earns income, if you do not designate another property and you remain a Canadian resident.

SituationWhat generally happens
No election, whole home rentedDeemed sale at fair market value on the change in use
45(2) election madeNo deemed sale, and designation possible for up to four years of rental
Small rental or business use, no changes, no CCANo deemed sale for a partial change in use

The four-year limit can be extended indefinitely under section 54.1 in certain employer-relocation cases, including where the home is at least 40 km farther from your new workplace than your subsequent residence.

Renting only part of the home

If you rent a room or use part of the home for business, the exemption can survive. For a partial change in use there is no deemed sale if the rental or business use is relatively small, there are no structural changes, and no CCA is claimed. Since 19 March 2019, a 45(2) or 45(3) election is also available for a partial change in use.

With a home office, if no CCA is claimed on the business part, the home can still be fully designated, and expenses other than CCA may be claimed subject to the folio's conditions. Claiming CCA on the business part can cost you the exemption for that part.

Where only part of a home is the principal residence and the rest earned income, the selling price and adjusted cost base are split by square metres or number of rooms, if the split is reasonable.

Traps that can cost you the exemption

Whether a rental period is short enough to leave the exemption intact depends on the facts, so it is worth a conversation with a lawyer or accountant before you sell.

What to do next

If you forget to designate in the year of sale, ask CRA to amend the return for that year. A late designation may be accepted in certain circumstances, but a penalty may apply.

Frequently asked questions

If I rent out my home, do I lose the exemption for the years I lived there?

No. Renting does not automatically end the exemption for the years the home qualified. When you rent out the whole home, the change in use is treated as a sale at fair market value unless you make a subsection 45(2) election. If only part of the home is rented and the use is relatively small, with no structural changes and no CCA claimed, there is no deemed sale.

For how many rental years can I still designate the home?

Under a subsection 45(2) election, up to four years while the home earns income, if you do not designate another property and remain a Canadian resident. That period can be extended in certain employer-relocation cases.

Can I rent a room and still keep the exemption?

Often yes. There is no deemed sale if the rental use is relatively small, there are no structural changes, and no CCA is claimed.

Do I report the sale if it is fully exempt?

Yes. The sale must be reported on Schedule 3 even when the whole gain is exempt, and CRA allows the exemption only if the sale and designation are reported.

Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Canadian laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a tax lawyer or accountant. Reach us at 1-844-900-1070 or send our Team a message.

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