Selling a property in Canada triggers one of two outcomes: either the gain is fully sheltered by the Principal Residence Exemption (PRE), or a portion of the gain is included in your taxable income for the year. For most homeowners selling their primary home, no tax is owed. But for sellers of cottages, investment properties, rental units, or homes that were partially rented or used for business, the tax consequences can be significant — and planning ahead can substantially reduce the bill.

This guide explains exactly how capital gains tax works on Canadian real estate, how to calculate your gain correctly, what the Principal Residence Exemption covers, and how provincial tax rates affect your after-tax proceeds. Use our Canadian real estate capital gains calculator to estimate your tax liability before you list.

How Capital Gains Work on Real Estate in Canada

A capital gain arises when you dispose of a property for more than its Adjusted Cost Base (ACB). "Dispose" includes selling, gifting, transferring to a corporation, or — in the case of death — a deemed disposition at fair market value.

The capital gain is not the full profit — it is the inclusion rate multiplied by the gain that becomes taxable income. Canada does not have a separate flat "capital gains tax rate." Instead, a portion of the gain is added to your regular income and taxed at your marginal rate.

The Capital Gains Formula
  • Capital Gain = Sale Price − Adjusted Cost Base − Selling Costs
  • Taxable Capital Gain = Capital Gain × Inclusion Rate
  • Tax Owed = Taxable Capital Gain × Your Marginal Tax Rate

The inclusion rate for individuals is 50% on the first $250,000 of capital gains per year, and two-thirds (66.67%) on amounts above $250,000. For corporations and trusts, the two-thirds rate applies to all capital gains — there is no $250,000 threshold.

The Principal Residence Exemption: When You Pay Nothing

The Principal Residence Exemption (PRE) is the most powerful tax shelter available to Canadian homeowners. If a property qualifies as your principal residence for every year you owned it, 100% of the capital gain is exempt from tax.

PRE Eligibility Requirements

  • The property must be a "housing unit" — house, condo, cottage, mobile home, or houseboat
  • You (or your spouse, common-law partner, or children) must have ordinarily inhabited the property at some point in the year
  • You must be a Canadian resident for tax purposes in the year(s) you are designating it
  • Only one property per family unit can be designated per year (spouses and minor children are treated as one family unit)

The PRE Formula for Partial Exemptions

If the property was not your principal residence for all years of ownership, the exemption is prorated using this formula:

PRE Partial Exemption Formula

Exempt Fraction = (1 + Number of Years Designated as Principal Residence) ÷ Total Years Owned

The "1+" in the numerator allows for one year overlap when changing principal residences.

Example: You owned a property for 12 years. For 8 of those years it was your principal residence; for 4 years you rented it out. Exempt fraction = (1 + 8) ÷ 12 = 75%. If the total gain is $400,000, $300,000 is exempt and $100,000 is taxable capital gain. At the 50% inclusion rate, $50,000 is added to your income.

Form T2091 Is Mandatory The PRE is not automatic. You must claim it on your tax return in the year of sale using CRA Form T2091 (Designation of a Property as a Principal Residence by an Individual). Failing to file this form can result in the exemption being denied. Real estate lawyers should remind clients of this requirement as part of closing.

Cottages and Investment Properties: The Full Tax Exposure

A recreational property (cottage, cabin, chalet) or an investment property (rental home, condo investment) cannot be designated as your principal residence if your principal home is already using that designation for the same years. Many Canadian families face a significant tax event when they sell a cottage that has appreciated substantially.

Cottage Tax Example

A family bought a cottage in 2005 for $150,000. They added a boathouse for $40,000 and renovated the kitchen for $30,000. They sell in 2026 for $800,000. Selling costs (commission + legal) = $40,000.

  • ACB = $150,000 + $40,000 + $30,000 = $220,000
  • Capital Gain = $800,000 − $220,000 − $40,000 = $540,000
  • Taxable inclusion: 50% on first $250,000 = $125,000; 66.67% on next $290,000 = $193,333
  • Total income addition: $318,333
  • At a 50% marginal rate (Ontario): estimated tax = $159,167

This illustrates why documenting capital improvements throughout ownership is critical. Every dollar of provable improvement reduces the gain — and the kitchen renovation and boathouse above saved approximately $35,000 in tax compared to not tracking them.

Rental Property Recapture

Investment property owners who claimed Capital Cost Allowance (CCA/depreciation) on their rental property face an additional complication at sale: CCA recapture. When you sell a property for more than its undepreciated capital cost (UCC), the difference between the UCC and the original cost is "recaptured" and added to income as ordinary income — not capital gains. This can create a significant additional tax bill on top of capital gains for long-held rental properties where CCA has been aggressively claimed.

How to Calculate Your Adjusted Cost Base (ACB)

The ACB is the starting point for calculating your capital gain. A higher ACB means a lower gain and less tax. Many property owners under-report their ACB because they fail to track all qualifying additions.

What Increases Your ACB

  • Original purchase price
  • Legal fees and land transfer tax paid at purchase
  • Capital improvements — additions, new roof, finished basement, renovations that materially improve the property (not repairs or maintenance)
  • Survey costs
  • Real estate commissions paid when you bought (rare but possible in some arrangements)

What Does NOT Increase Your ACB

  • Routine maintenance and repairs (painting, plumbing fixes, appliance replacement)
  • Mortgage interest
  • Property taxes paid during ownership
  • Insurance premiums
  • Landscaping that is not a permanent improvement

Keep Records for the Life of Ownership CRA can audit a capital gains claim up to 6 years after filing, and the burden of proof is on the taxpayer to substantiate the ACB. Keep all receipts, contracts, and invoices for capital improvements made to any property that may not qualify for the full PRE. A missing receipt for a $50,000 renovation could cost you $12,500 in additional tax.

Provincial Tax Rates on Capital Gains

Canada has no separate federal "capital gains tax rate." Instead, the taxable capital gain (50% or 66.67% of the total gain) is added to your income and taxed at your combined federal-provincial marginal rate. Here are approximate top marginal rates by province for 2026, applied to the included portion of capital gains:

Ontario
Top combined marginal: ~53.53%
On a $250K gain at 50% inclusion: ~$66,913 tax
British Columbia
Top combined marginal: ~53.96%
On a $250K gain at 50% inclusion: ~$67,450 tax
Alberta
Top combined marginal: ~48.00%
On a $250K gain at 50% inclusion: ~$60,000 tax
Quebec
Top combined marginal: ~53.31%
On a $250K gain at 50% inclusion: ~$66,638 tax

Alberta's lower provincial income tax rate makes it meaningfully cheaper to realize large capital gains there — an important planning consideration for retirees deciding where to establish tax residency before disposing of investment properties.

Canada vs US: The §121 Exclusion Comparison

The US equivalent of Canada's PRE is the §121 exclusion under the Internal Revenue Code. It allows a married couple filing jointly to exclude up to $500,000 of gain on the sale of their primary home ($250,000 for single filers), provided they have lived in the home as their primary residence for at least 2 of the last 5 years.

Key differences from the Canadian PRE: the US exclusion is a fixed dollar cap, not a percentage-of-gain formula. A US homeowner who sells a home with a $600,000 gain (married filing jointly) pays capital gains tax on $100,000, regardless of how long they owned it. In Canada, a homeowner who designated the home as their principal residence for all years of ownership pays no tax, even on a $2 million gain.

For cross-border situations — Canadians selling US real estate, or US citizens selling Canadian property — the tax treatment becomes significantly more complex, involving FIRPTA withholding in the US and treaty provisions that may affect which country gets primary taxing rights. Both situations require advice from a lawyer or accountant with cross-border tax expertise. Use our US real estate capital gains calculator for US-side estimates.

Tips to Minimize Capital Gains Tax on Real Estate

  • Maximize the PRE designation strategically: If your family owns both a home and a cottage, calculate which property had the higher annual appreciation rate — designate the faster-appreciating property as your principal residence for those years. A tax accountant can run this analysis before you sell either property.
  • Document every capital improvement from Day 1: Keep receipts, permits, and contractor invoices in a property file for the entire period of ownership. Each dollar of documented improvement reduces your gain.
  • Time the sale across tax years: If your gain will exceed $250,000, splitting the sale across two calendar years (installment sale or condition of closing) can allow you to apply the lower 50% inclusion rate to more of the gain in each year.
  • Spousal rollover for estate planning: Property transferred to a Canadian spouse at death is typically transferred at cost (no deemed disposition) — deferring the capital gain until the surviving spouse sells. This is an important estate planning consideration for jointly owned investment properties.
  • Graduated rate estate (GRE): In the year of death, a taxpayer's estate may qualify as a Graduated Rate Estate, which allows the estate to use graduated federal income tax rates (rather than top marginal rates) for up to 36 months — reducing the tax on deemed dispositions at death.
  • Capital losses to offset gains: Capital losses from other investments (stocks, other properties) in the current year, or carried back 3 years or forward indefinitely, can offset capital gains from a real estate sale.

Real estate law firms that advise clients on the tax implications of property sales are far more valuable than those that handle only the conveyancing. See our real estate law resource hub and explore how LexScale.ai helps law firms attract and convert this higher-value client segment. Our Canadian capital gains calculator and closing costs calculator are built to support exactly this kind of client conversation.

Frequently Asked Questions

Do you pay capital gains tax when you sell your house in Canada?
If the property was your principal residence for every year you owned it, you pay zero capital gains tax on the sale thanks to the Principal Residence Exemption (PRE). However, if the property was not your principal residence for all years of ownership — including cottages, investment properties, rental properties, or a home used partly for business — you will pay capital gains tax on the proportional gain. Only one property per family unit can be designated as the principal residence per year. The exemption must be formally claimed on your tax return using CRA Form T2091.
What is the capital gains inclusion rate in Canada?
As of 2024, the capital gains inclusion rate in Canada is 50% for individuals on gains below $250,000 per year. For gains above $250,000 in a single year, the inclusion rate increases to two-thirds (66.67%) on the excess. This means if you sell a cottage and realize a $400,000 gain (after principal residence exemption does not apply), the first $250,000 is 50% included ($125,000 added to income) and the remaining $150,000 is 66.67% included ($100,000 added to income) — for total taxable income addition of $225,000. You pay your marginal tax rate on that $225,000.
What is the principal residence exemption in Canada?
The Principal Residence Exemption (PRE) allows Canadian homeowners to shelter the capital gain on the sale of a home from tax, provided the home was designated as their principal residence for each year they owned it. The formula is: Exempt portion = Gain × (1 + years designated ÷ years owned). If you owned a home for 10 years and designate it as your principal residence for all 10 years, 100% of the gain is exempt. You can only designate one property per family unit (spouses and minor children) per year. The exemption applies globally — a Canadian living abroad who sells their Canadian principal residence may still qualify.
How do you calculate capital gains on the sale of a property in Canada?
Capital gain = Proceeds of disposition minus Adjusted Cost Base (ACB) minus selling costs. Proceeds of disposition is the sale price (or fair market value). ACB is what you originally paid plus the cost of any capital improvements (additions, renovations that add value — not maintenance). Selling costs include real estate commissions, legal fees on the sale side, and any costs of disposing of the property. Example: Bought investment property for $400,000 in 2015. Added a garage for $60,000 in 2018. Sold for $850,000 in 2026 with $25,000 in commission and legal fees. Capital gain = $850,000 − ($400,000 + $60,000) − $25,000 = $365,000.
James Harmiden
Published July 9, 2026

The LexScale.ai editorial team produces definitive guides on real estate law, property taxation, and AI tools for law firms across North America. This guide is for informational purposes — consult a tax professional or real estate lawyer for advice specific to your situation.