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№ 22 Wills & Estates

Capital Gains on Jointly Owned Property After a Death in Ontario

Learn how the deemed disposition at death works on the final return, how the principal residence exemption applies, and when the spousal rollover helps.

Wills & Estates6 min readTSLBy the Treadstone Law Team · OntarioUpdated October 28, 2026
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Key takeaways
  • On death, a person is treated as having disposed of their property immediately before death at fair market value, which can create a gain or loss on the final return.
  • Property passing to a spouse or common-law partner who is resident in Canada may not trigger a gain, but the legal representative can elect out of the rollover.
  • A home can qualify as the deceased's principal residence if they owned it alone or jointly, but it must still be designated on Schedule 3 and Form T1255.
  • Joint property that passes by survivorship is generally left out of the value used for Ontario Estate Administration Tax.

When someone dies and you were a joint owner of their home or another property, two separate things happen. Ownership usually passes to you automatically, and the tax system looks at what the deceased is treated as having done with their property on the day they died. The first is a property question. The second is a tax question, and it shows up on the deceased's final income tax return.

This article walks through how the deemed disposition works, how the principal residence exemption fits in, and why a surviving spouse is often treated differently from a surviving child or friend. It is general information only. Joint ownership and tax can interact in ways that depend on your facts, so an accountant or lawyer should confirm the details before anything is filed.

Ownership and tax are two different questions

In Ontario, if you own property as a joint tenant, the property automatically passes to the surviving owner when you die. That is a rule about who holds title. It does not decide whether the deceased's final tax return reports a gain.

The tax rule is separate. The Canada Revenue Agency (CRA) says a person is considered to have disposed of their property immediately before death at fair market value, which may produce a gain or loss on the final return. The Income Tax Act says the same thing: the taxpayer is deemed to have disposed of each capital property immediately before death, at proceeds equal to fair market value.

This is a deemed disposition. Nobody has to sell anything for it to apply. Who prepares and files the final return depends on the estate, so it is worth confirming with an accountant or lawyer.

How the deceased's share is treated

For a jointly owned property, the usual question is how much of the property counts as the deceased's. How that share is measured depends on your situation, so it is worth confirming with an accountant. What you can rely on is the general rule: the deceased is treated as having disposed of their capital property at fair market value just before death.

Whether you, the survivor, are a spouse or common-law partner matters a great deal. That is where the rollover comes in.

SituationGeneral tax result on the final return
Survivor is a spouse or common-law partner resident in CanadaMay not result in a capital gain or loss, because of the spousal rollover
Property is the deceased's principal residence and qualifiesGain may be exempt, but the home must still be designated
Survivor is someone else, such as a child or friendThe general rule applies: deemed disposal at fair market value, which may produce a gain or loss

The spousal rollover

Property passed to a surviving spouse or common-law partner who is resident in Canada may not result in a capital gain or loss on the final return. In the Income Tax Act, this works by treating the proceeds as equal to the adjusted cost base if the property vests indefeasibly in the recipient within 36 months after death, and the Minister may allow a longer period.

The rollover is automatic, but it is not forced on you. The legal representative may elect out of it, property by property, on the final return. People sometimes consider this when the deceased has capital losses to use up, though whether that makes sense depends on the whole return.

There is a time limit to watch. For the rollover, the property must be locked in for the spouse or common-law partner no later than 36 months after death, and an extension can be requested from the Tax Services Office before the deadline.

The principal residence exemption

A home qualifies as the deceased's principal residence only if, among other conditions, the deceased owned it alone or jointly with another person. A jointly owned family home can therefore qualify.

Even if the gain is fully exempt, the home must be designated on Schedule 3 and Form T1255. Skipping this step because you expect no tax is a common mistake, so ask whoever prepares the return to confirm it has been done.

How this fits with probate and land transfer tax

Joint property that automatically passes to the other owner is excluded from the value of the estate used to calculate Estate Administration Tax. For estate certificates applied for on or after January 1, 2020, the tax is $15 for every $1,000 (or part thereof) of estate value over $50,000. So a home that passes by survivorship generally does not add to that tax, although it can still matter for income tax.

On land transfer tax, Ontario guidance says the Act excludes from a disposition of a beneficial interest a transfer that occurs by reason of the owner's death, covering acquisition by operation of law such as a deceased joint tenant's interest. That guidance does not cover transfers under a contract triggered by death.

What to do next

If you are the survivor, the main work falls to the person acting for the estate, but you will need to supply information. Keeping good records now makes the final return easier.

How a joint tenant's share is measured depends on the facts, so speak with an accountant or lawyer before the final return is filed.

Frequently asked questions

Do I pay capital gains tax when I inherit a jointly owned home?

The deemed disposition is reported on the deceased's final return, not as a sale by you. Whether tax is payable depends on the home's value, whether it qualifies as a principal residence, and whether the spousal rollover applies. An accountant can estimate it.

Does a surviving spouse always avoid the gain?

Not automatically in every case. The rollover applies to property passed to a spouse or common-law partner resident in Canada, and the property must be locked in for them within 36 months after death. The legal representative can also elect out of it.

Do I still need to report the home if it is exempt?

Yes. Even if the gain is fully exempt, the home must be designated on Schedule 3 and Form T1255.

Does survivorship property count toward Estate Administration Tax?

Assets with joint ownership that automatically become assets of the other owners are excluded from the estate value used for that tax. Other estate assets may still be counted.

Sources

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

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.

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