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Real Estate

How does the principal residence exemption work when I sell my home in Ontario?

TSL Written by the Treadstone Law Team· Updated November 13, 2026

You usually pay no tax on the gain when you sell a home that was your principal residence for every year you owned it. If it was not, only part of the gain is exempt, calculated as the gain × (designated years + 1) ÷ years owned.

A property qualifies for a year only if it is a housing unit, you own it alone or jointly, you or certain family members lived in it at some time during the year, and you designate it. A house, cottage, condominium, apartment, trailer, mobile home or houseboat can all qualify. For 1982 and later years, a family can designate only one home as its principal residence for each year. That matters if you own both a city home and a cottage.

When you sell, you report the sale and the designation on Schedule 3 (Capital Gains or Losses) and complete Form T2091(IND), Designation of a Property as a Principal Residence by an Individual (Other Than a Personal Trust). Separated spouses, rentals and years as a non-resident can change the result, so confirm your situation with a lawyer or accountant.

Key takeaways

  • If the property was solely your principal residence for every year you owned it, you usually pay no tax on the gain.
  • For 1982 and later years, a family can designate only one home as its principal residence for each year.
  • You report the sale and designation on Schedule 3 and complete Form T2091(IND).
  • A spouse who lived apart from you under a judicial separation or written separation agreement throughout the year is not part of your family unit for the one-home limit.
This is general information, not legal advice. It doesn’t create a lawyer–client relationship, and the rules can change. For advice on your situation, a Treadstone real estate lawyer can help.

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Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

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