Principal Residence Exemption Canada: Complete Guide (2026)

What Is the Principal Residence Exemption?

The Principal Residence Exemption (PRE) is a provision in the Income Tax Act that shelters the capital gain on the sale of a home from tax. For most Canadian homeowners who buy, live in, and sell their primary home, the PRE eliminates all capital gains tax on the profit.

Without the PRE, selling a home at a $500,000 gain would generate $250,000–$333,000 of taxable income (depending on the inclusion rate in effect). With a full PRE designation covering all years of ownership, the tax is reduced to zero.

What Qualifies as a Principal Residence

To qualify for the PRE designation in a given year, a property must:

1. Be a housing unit — detached house, semi-detached, duplex, condo, mobile home, cottage, or similar
2. Be ordinarily inhabited — you or your spouse/common-law partner or a child must have lived in it during the year
3. Be owned — you must legally own the property

“Ordinarily inhabited” does not require year-round occupancy. Seasonal cottages used regularly during the summer qualify. A residence lived in for even a brief period during the year can satisfy the test, provided the stay is genuine occupancy rather than a token visit to game the exemption.

The One-Plus Formula

The PRE is calculated using this formula:

$$\text{Exempt gain} = \text{Total gain} \times \frac{1 + \text{Designated years}}{{\text{Total years owned}}}$$

The “+1” is a special provision that allows one year of overlap when you move from one home to another and cannot sell both in the same year. It effectively means you can designate a property for one more year than you lived in it.

Example:

• Bought property in 2010, sold in 2026 = 16 years of ownership
• Lived in it as principal residence 2010–2022 (13 years), then rented 2023–2026 (3 years)
• Designate 13 years (+1 = 14)
• Exempt fraction: 14/16 = 87.5% of the gain is exempt
• Remaining 12.5% is a taxable capital gain

One Property Per Family Unit Per Year

Since 1982, only one property per family unit can be designated as a principal residence for any given calendar year. A family unit consists of:

• You
• Your spouse or common-law partner
• Your unmarried children under 18

Common scenario — couples with a city home and a cottage:

If you bought both properties after 1981, you must choose which property to designate for each year. Typical optimal strategy: designate the property with the higher annual gain rate as principal residence for more years. A financial advisor or accountant can model the optimal split.

Pre-1982 property: Different rules applied before 1982 — each spouse could designate a different property. Consult an accountant if you hold a property purchased before 1982.

Partial Exemption: Mixed Personal/Rental Use

If you own a property that was your principal residence for some years and a rental property for others, you calculate the gain in two parts:

1. Capital gain: Total sale proceeds minus ACB
2. Exempt portion: Apply the formula above for the years designated as principal residence
3. Taxable portion: Remaining gain taxed as capital gains (50% inclusion if gain up to $250K; 2/3 inclusion on gain above $250K after 2024)
4. CCA recapture: If you claimed CCA during rental years, the recaptured amount is fully taxable as income (not a capital gain)

Change-in-Use Rules

When you change a property from personal use to rental (or vice versa), deemed dispositions and elections apply:

Personal → Rental

When you stop living in a property and start renting it:

• Default: CRA deems a disposition at fair market value. You may owe capital gains tax on the appreciation to that point — unless you designate the PRE.
• Section 45(2) election (one-time): You can elect to defer the deemed disposition. Under this election, the property is treated as your principal residence for up to 4 more years after you move out, even while renting. This is highly valuable — it gives a four-year extension of PRE eligibility during the rental period.
• Restriction: You cannot claim CCA during the period of the Section 45(2) election. Also, it is a one-time election per property.

Rental → Personal

When you move back into a property you were renting:

• CRA deems a disposition at FMV when use changes back to personal
• Any unrealized gain during rental period becomes taxable
• A separate election exists (Section 45(3)) to defer this deemed disposition

The 2023 Residential Property Flipping Rule

Effective January 1, 2023, a new anti-flipping rule applies:

If you sell a residential property you have owned for less than 365 days, the entire gain is treated as business income — fully taxable, ineligible for the PRE, and ineligible for the capital gains inclusion rate.

This applies to:

• Residential property sales (houses, condos, duplexes, multiplexes)
• Assignments of purchase and sale agreements (presale flips)

Exceptions (12-Month Rule Does Not Apply)

The business income treatment does not apply if the sale within 12 months results from a qualifying life event:

Note: Prior to the 2023 rule, CRA still had the ability to characterize repeated property sales as “adventure in the nature of trade” — essentially treating gains as business income. The 2023 rule creates a bright-line test, but the pre-existing CRA position still applies to certain patterns of dealing even after 12 months.

Foreign Property Owned by Canadians

Canadian tax residents who sell foreign property (U.S. vacation home, offshore investment property) are subject to Canadian capital gains tax on the gain, after applying the foreign tax credit for taxes paid in the other country. The PRE can apply to a foreign property if you ordinarily inhabited it and it meets all other criteria.

How to Claim the PRE

Step 1: Complete Schedule 3 (Capital Gains or Losses) — you must report the sale regardless of whether the gain is fully exempt.

Step 2: Complete Form T2091 (Designation of a Property as a Principal Residence) for each property sold, indicating the years designated as principal residence.

Step 3: The exempt portion reduces your taxable capital gain on Schedule 3.

What not to do: Do not omit the sale from your return assuming no tax is owed. Since 2016, unreported principal residence sales can result in CRA denying the exemption and assessing full capital gains tax, plus a late-reporting penalty.

PRE Planning Considerations

• Cottage vs. city home: If both properties have significant gains, model which to designate for which years to maximize the total exempt gain
• Rental periods reduce protected years — time the conversion date carefully with professional advice
• Dying with a property: Update your will to indicate PRE designation instructions to your executor
• Marriage and common-law status: When you marry or become common-law partners, your separate designations merge into one per family unit — you may need to designate strategically before the relationship begins if both parties own property