Principal Residence Exemption in Canada (2026): What’s Tax-Free, What’s Not

The Principal Residence Exemption (PRE) is one of the most valuable tax breaks in Canada — it lets you sell your home for $500K more than you paid and owe ZERO tax. Most homeowners use it without thinking. But the rules around partial use, multiple homes, and the new anti-flipping provisions have tightened significantly. Here’s the 2026 version.

What PRE eliminates

When you sell your home, the difference between what you paid (plus improvements) and what you sold for is a capital gain. Normally, 50% of that gain is added to your taxable income. The PRE lets you exempt 100% of the gain — pay no tax — if the property qualifies as your “principal residence” for every year you owned it.

Example: bought a Toronto townhouse for $400,000 in 2015. Sold for $1,100,000 in 2026. Capital gain: $700,000. Without PRE: $350,000 added to taxable income, ~$185,000 in tax. With PRE: $0 tax owed. Massive savings — this is why housing wealth is so concentrated in Canada.

The “ordinarily inhabited” test

A property qualifies as a principal residence in any year that it was “ordinarily inhabited” by you, your spouse/common-law partner, or your child. “Ordinarily inhabited” is broader than “lived in full-time” — courts have accepted seasonal use (cottages used summers only), short stays, and even uninhabited periods if part of a normal-use pattern.

What does NOT qualify: pure investment property (never lived in), vacant land held for development, business premises with no residential use.

The “one per family” rule

Since 1982, a family unit (you + spouse + minor kids) can only designate ONE property as principal residence per year. If you and your spouse own both a Toronto home and a Muskoka cottage, only one can be principal residence in any given year.

The strategy choice when you sell: designate the property with the highest per-year capital gain as principal residence for those years, leaving the other taxable on remaining years. Tax accountants run this optimization when families sell.

The +1 rule (formerly +1 years bonus)

The exemption formula gets a +1 year bonus to account for the year of sale. Formula:

Exempt portion = Capital gain × ((Years designated as PR + 1) ÷ Total years owned)

So if you owned a cottage for 10 years and designated it as principal residence for 6 of those years, the exempt portion is 7/10 = 70% of the gain. The remaining 30% is taxable. The +1 effectively lets you straddle a sale year between two properties without losing the exemption on either.

The 2023 anti-flipping rule

Starting 2023, residential property sold within 12 months of purchase is treated as business income (not capital gain at all). This means:

• 100% of the profit is taxable (not 50%)
• No PRE available
• Taxed at your full marginal rate

Exceptions for life-event sales: death, divorce, work relocation (40+km move), serious illness, growing family (birth of child), serious financial hardship. These exceptions preserve PRE on the gain.

The rule was designed to stop the assignment-sale flipping market in Toronto and Vancouver (buying preconstruction condos and reselling on close). It works — CRA audits residential property sales within 12 months automatically now.

Reporting on Form T2091

Since 2016, you must report the sale of your principal residence on Form T2091 even if 100% of the gain is exempt. Missing this filing can result in:

• Loss of PRE entirely (full gain becomes taxable)
• Penalty of $100/month, max $8,000
• CRA reassessment beyond the normal 3-year limit

If you sold your home and forgot to file T2091, file an amendment immediately. CRA generally accepts late-filing if you weren’t trying to evade.

The 1.25-acre limit

PRE applies to your house plus up to 0.5 hectares (1.25 acres) of surrounding land. For most urban + suburban homes, this is plenty. For rural properties or large estates, the excess land may be taxable as capital gain unless you can demonstrate it was “necessary for the use and enjoyment of the housing unit” (e.g., minimum lot size required by zoning, septic + well systems requiring acreage). Acreage-related PRE disputes are common in cottage country.

Partial-use scenarios

• Home office (working from home, no separate entrance, <50% of home space): Doesn’t affect PRE.
• Rented basement suite with separate entrance: The rental portion is partially taxable (proportional to square footage and years rented).
• Airbnb on a regular basis: Treated similarly to rental — may partially disqualify.
• Converted home to full-time rental, then back: Triggers “deemed disposition” at conversion. PRE applies up to that date; subsequent gain is taxable.