If you lived in your home for every year you owned it, you pay zero capital gains tax when you sell — but you must still report the sale to CRA on Schedule 3. If you owned for less than 365 days, anti-flipping rules tax the entire gain as business income with no exemption. For mixed-use or partial-year residences, a formula determines how much of the gain is sheltered. You designate principal residence years using Form T2091 (or your tax software).
What Is the Principal Residence Exemption?
Under the Canadian Income Tax Act, a capital gain you realize when you sell your home is exempt from tax if the property qualifies as your principal residence for the years you owned it. This exemption is not automatic — you must designate the property and report the sale — but when it applies fully, the entire capital gain is sheltered from tax regardless of how large it is.
A property qualifies as a principal residence for a given year if:
- It is a housing unit (house, condo, cottage, mobile home, houseboat, or share in a co-op)
- You or your spouse, common-law partner, or child ordinarily inhabited it at some point during the calendar year
- You designate it as your principal residence for that year
“Ordinarily inhabited” does not mean you must live there year-round. Spending summers at a cottage can qualify it as ordinarily inhabited for that year. However, only one property per family unit can be designated per year.
The Exemption Formula Explained
The fraction of your capital gain that is exempt is calculated as:
Exempt fraction = (1 + number of years designated as principal residence) ÷ total number of years owned
The “+1” in the numerator is a built-in bonus year provided by CRA. It exists specifically to help people who buy a new home and sell their old home in the same calendar year — the +1 ensures the year of transition does not create a gap where neither property is fully covered.
If the resulting fraction equals or exceeds 1 (which happens when you designate all years), the entire gain is exempt. Fractions above 1 are treated as 1 — you cannot shelter more than 100% of the gain.
You Must Report the Sale Since 2016
Before 2016, you were not required to report the sale of your principal residence to CRA if the gain was fully exempt. That changed. Now, every sale of a principal residence must be reported on your T1 return in the year of the sale, regardless of whether you owe any tax.
Here is what you must file:
- Schedule 3 (Capital Gains or Losses) — report the proceeds of disposition and adjusted cost base
- Form T2091 (Designation of a Property as a Principal Residence by an Individual) — or the equivalent in your tax software — to designate the years and calculate the exempt fraction
If you fail to report the sale, CRA can deny the exemption entirely, leaving you liable for capital gains tax on the full gain plus interest and potential penalties. This is not a technical risk you want to take.
Anti-Flipping Rules: Owning for Less Than 365 Days
Since January 1, 2023, the federal Residential Property Flipping Rule applies when you sell a residential property you owned for fewer than 365 consecutive days. In that scenario:
- The entire gain is taxed as business income, not a capital gain
- The principal residence exemption does not apply
- The 50% capital gains inclusion rate does not apply — 100% is taxable
There are statutory exceptions for life events that force a sale before 365 days:
- Death of the owner or a related person
- Household member added (birth, adoption, new dependent)
- Marriage breakdown or separation
- Threat to personal safety (such as domestic violence)
- Employer-required job relocation (move of 40+ km)
- Insolvency or disability
If you qualify for an exception, CRA still expects you to document it. Keep evidence of the qualifying event in case of a future review.
If you used part or all of your home as a short-term rental for part of the year, CRA may take the position that the property (or a portion of it) was not being used as your principal residence during those periods. The longer and more extensive the rental use, the greater the risk that some portion of the eventual capital gain will be taxable. If you’ve been renting your property on Airbnb, speak with a tax professional before selling.
Partial Exemptions: When You Rented the Property for Some Years
If you lived in the home for some years and rented it out for others, the exemption is partial. You designate only the years you lived in it as principal residence years; the rental years are taxable.
Change-of-Use Rules
When you convert your home to a rental property (or vice versa), CRA considers this a deemed disposition at fair market value. In practical terms, this means a capital gain (or loss) is triggered at the moment of conversion — even though no actual sale occurred.
To defer this deemed disposition, you can file a Section 45(2) election in the year you first rent out the property. This election lets you treat the property as your principal residence for up to four additional years after you stop living in it — without actually living there — potentially sheltering more of the eventual gain. The election must be filed by the due date of your return for the year of conversion.
Worked Example: Mixed Residence and Rental Use
Consider someone who bought a house in 2015 for $500,000 and sold it in 2025 for $900,000 (a $400,000 capital gain). They rented it from 2015 through 2018 (4 years), then lived in it from 2019 through 2025 (7 years — including the sale year).
| Step | Detail | Amount |
|---|---|---|
| Total capital gain | $900,000 − $500,000 | $400,000 |
| Years owned | 2015 – 2025 | 10 years |
| Years designated as principal residence | 2019 – 2025 | 7 years |
| Exempt fraction | (1 + 7) ÷ 10 | 8/10 = 80% |
| Exempt gain | 80% × $400,000 | $320,000 |
| Taxable capital gain | 20% × $400,000 | $80,000 |
| Taxable income added (50% inclusion) | 50% × $80,000 | $40,000 |
That $40,000 is added to their other income for 2025 and taxed at their marginal rate. Note that the capital gains inclusion rate remains at 50% for 2025 — the proposed 2/3 inclusion rate was cancelled.
Cottages and Vacation Properties
A cottage or seasonal property can be designated as your principal residence for years in which you or your family ordinarily inhabited it. This is useful if your cottage appreciated significantly while your city home did not. The strategic question is how to allocate designation years across two (or more) properties to minimize your total taxable gain.
For example: if you owned both a home and a cottage from 2010 to 2025 and both appreciated, you might designate the home for 2010–2019 and the cottage for 2020–2025 (or vice versa), depending on which had the larger per-year gain. Only one property per year per family unit can be designated, so careful allocation matters.
The principal residence exemption is unlimited in dollar amount — there is no cap on the gain you can shelter. A couple who bought a Toronto home in 2005 for $400,000 and sold it in 2025 for $1,400,000 has a $1,000,000 capital gain that is completely tax-free if they lived there throughout. No RRSP, TFSA, or FHSA can shelter that magnitude of gain. This is why real estate has been such a powerful wealth-building vehicle for many Canadians.
Buying and Selling in the Same Year: The +1 Rule in Practice
When you sell your old home and buy a new one in the same calendar year, a potential problem arises: the year of the move appears in neither the “owned the old home” years nor the “owned the new home” years for a full year. The +1 rule resolves this by giving you an extra designation year, meaning you can fully designate both properties in the transition year without losing any exemption. This is intentional — the tax system does not penalize you for moving.
Estimate Your Capital Gains Tax
Use our calculator to model the taxable gain from a partial exemption scenario and see how it affects your overall 2025 tax bill.
Frequently Asked Questions
Do I still have to report the sale of my home if I’m fully exempt from capital gains tax?
Yes. Since 2016, every sale of a principal residence must be reported on your tax return in the year of sale, even if the capital gain is 100% exempt. You report it on Schedule 3 and file Form T2091 to designate the property. Failing to report can result in CRA denying the exemption and assessing the full gain as taxable — plus interest and penalties.
Can I claim the principal residence exemption on my cottage or vacation property?
Yes, if you or a member of your family ordinarily inhabited the property at some point during the year. However, you can only designate one property as your principal residence per year per family unit. If you own both a house and a cottage, you must strategically choose which property to designate for each year based on where the larger annual gain occurred.
What happens if I rented out part of my home (e.g. a basement apartment)?
Renting out part of your home typically does not disqualify the principal residence exemption for the portion you personally use — CRA generally treats a home with an income-producing area as still qualifying for the exemption on the whole property, provided you have not claimed capital cost allowance (CCA) on the rental portion and the rental use is incidental. However, claiming CCA on a rental portion, or converting a significant portion of the home to purely commercial use, can trigger change-of-use rules. Keep records of the rental income and expenses and speak to a tax professional if uncertain.
I sold my home after owning it for only 8 months — are anti-flipping rules applied?
Yes. Under the Residential Property Flipping Rule in effect since January 1, 2023, selling within 365 days means the entire gain is taxed as 100% business income — no capital gains rate, no principal residence exemption. There are exceptions for life events (death, divorce, job relocation of 40+ km, disability, etc.). If you qualify for an exception, document it carefully before filing.
My spouse and I each owned a property before marriage. Can we designate both as principal residences?
For years prior to becoming spouses or common-law partners, each of you could independently designate your own property as a principal residence. Once you become a family unit, only one property per year can be designated across the combined family. Strategic allocation of pre-relationship years can minimize the combined taxable gain on both properties. A tax professional can help you determine the optimal designation approach for your specific situation.
For complete CRA guidance on selling your principal residence, see: Selling Your Principal Residence — CRA.