Selling at a profit is good news, but the answer depends on how you used the property, your eligible costs and your tax situation. A family home in Dollard-des-Ormeaux, a chalet in the Laurentians and a rental triplex in Lachine can have very different outcomes.

1. Your principal residence may qualify for an exemption

A qualifying principal residence can be exempt from tax on all or part of its capital gain. For example, a DDO home bought for $450,000 and sold for $800,000 may qualify for a full exemption if the relevant conditions are met throughout ownership. Living there does not automatically settle every tax question.

You must still report the sale. At the federal level, this generally means Schedule 3 and Form T2091(IND). For Quebec, the designation uses form TP-274-V with Schedule G. Partial rental use, a change in use or years claimed for another property can affect the result.

2. A 50% inclusion rate is not a 50% tax rate

For individuals in 2026, the capital gains inclusion rate remains 50%. The previously proposed increase was cancelled. Half of a non-exempt capital gain is included in taxable income; the tax payable depends on your applicable federal and Quebec income tax rates.

For example, a $100,000 non-exempt gain generally adds $50,000 to taxable income. If that entire amount were taxed at an assumed combined rate of 40%, the additional tax would be $20,000—not $50,000. This is an illustration, not a personal tax estimate: brackets, other income and deductions affect the calculation.

3. Selling a chalet in the Laurentians

A second property is not automatically tax-free, but a cottage can sometimes qualify for a principal residence designation. Generally, a family unit can designate only one property for a particular year. Choosing chalet years can reduce the exemption available for the family home.

If you own both a Pointe-Claire house and a Laurentians chalet, ask your accountant to compare the implications for both properties before choosing a designation. Keep purchase documents and invoices for eligible capital improvements, such as an addition. Routine maintenance and improvements are not interchangeable for tax purposes.

4. A practical Lachine rental-property example

These fictional figures assume an individually owned investment property, no principal residence exemption, no capital losses applied and no depreciation recapture. They are not a valuation of an actual listing.

  • Selling price: $900,000
  • Original purchase price: $500,000
  • Eligible acquisition costs, including qualifying notarial fees and transfer duties: $10,000
  • Eligible capital improvements: $60,000
  • Adjusted cost base: $570,000
  • Eligible selling expenses: $40,000

Eligible selling expenses can include brokerage remuneration and related legal fees. Keep supporting invoices and have your accountant confirm the treatment of taxes, expenses already deducted and capital improvements.

5. Your mortgage affects cash, not the capital gain

If the mortgage balance in that example were $350,000, the simplified cash estimate would be $900,000 − $40,000 selling expenses − $350,000 mortgage repayment − $58,000 estimated tax = $452,000 remaining.

That amount includes your remaining equity; it is not all profit. Mortgage penalties, discharge fees, closing adjustments and other costs can change it. Paying off a mortgage does not itself reduce the capital gain. Tax may be payable later, so plan the reserve before spending the sale proceeds.

6. Rental properties can have an additional tax bill

If you claimed capital cost allowance (CCA), the sale may trigger recapture, which is included in income separately from the capital gain and does not receive the 50% capital-gains inclusion treatment. Your accountant must allocate the proceeds between land and building and review the depreciation history.

For an owner-occupied duplex in Verdun, the personal and rental portions may also need separate treatment. Converting a home to a rental, or moving into a former rental, can create a deemed disposition, although elections may be available. Obtain advice before making the change.

Before you list: prepare both the pricing and tax plan

Gather the purchase deed, acquisition-cost records, renovation invoices, rental and depreciation records, and details of how the property was used each year. Ask your accountant about ownership through a corporation, inherited property or a quick resale. Residential property held for less than 365 days can fall under flipping rules that treat the profit as business income, subject to exceptions; longer ownership does not automatically guarantee capital-gains treatment.

My role is to help you understand your property’s market position, buyer demand and a realistic selling strategy. Your accountant can estimate the tax. Together, those numbers give you a clearer basis for deciding when to sell.

Related reading: What does it cost to sell a home in the West Island?

Sources

General information checked October 26, 2026. Fictional examples in Canadian dollars. This article is not personalized tax advice; confirm the rules for your year of sale with your accountant.