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Capital Gains Tax at Death: How Ontario Estates Are Taxed

Learn how deemed disposition taxes capital property at death, which rollovers and exemptions may apply, and the filing dates for an Ontario estate.

Wills & Estates4 min readTSLBy the Treadstone Law Team · OntarioUpdated November 1, 2026
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Key takeaways
  • At death, a person is treated as having sold each capital property at fair market value, and any gain goes on the final return.
  • Property passing to a spouse, common-law partner or qualifying spousal trust can roll over at cost, with conditions.
  • Final return deadlines depend on the date of death and on whether a business was carried on.

If you are inheriting a cottage or an investment portfolio, you may be surprised to learn that a tax bill can arise before anything is sold. Canadian tax law treats the deceased as having sold each of their capital properties at fair market value immediately before death.

This article explains the basic rule, the main exceptions and the dates the estate trustee needs to watch. Every estate is different, so an accountant or lawyer should confirm how this applies to your situation.

What deemed disposition means

Under the Income Tax Act, a person is deemed to have disposed of each capital property immediately before death at its fair market value. Any resulting capital gain is reported on the final return.

In plain words, nothing has to be sold for the rule to apply. The estate trustee works out what each asset was worth on the date of death, compares that with what the deceased originally paid, and reports the difference. Because the gain is reported on the final return, it is worth getting the tax picture clear before any distribution is made.

Exceptions that can defer the tax

The general rule has some important exceptions. The main ones are:

A rollover generally postpones the tax rather than removing it, because the person who receives the property takes it at the deceased's original cost. Whether you qualify depends on details such as residency and how the property is transferred, so confirm with an accountant before relying on one.

Cottages, homes and personal-use property

Many families are most worried about a cottage. The deceased's principal residence designation applies only up to the date of death. If the property gained value over the years and no rollover applies, a gain may have to be reported.

There is also a limit on losses. You cannot claim a capital loss on personal-use property. Whether a loss could be used on a particular property depends on how it was used, so confirm this with an accountant.

Where a cottage is not covered by a rollover, the deemed disposition at fair market value still applies, and any resulting capital gain is reported on the final return. If a cottage is shared among several heirs, or the family wants to keep it, the plan for ownership and tax is worth discussing with a lawyer and an accountant early.

Filing dates for the final return

Date of deathFinal return due
January 1 to October 31April 30 of the following year
November 1 to December 316 months after the death
Business carried on by the deceased or a cohabiting spouse or common-law partnerJune 15 of the following year, or 6 months after a death between December 16 and 31

In the business case, any balance owing is still due by the regular date. Note the dates early so the estate does not fall behind.

Protecting the estate trustee: what to do next

A legal representative who distributes assets without a CRA clearance certificate, requested on Form TX19, while tax is owing is personally liable for the unpaid amounts, up to the value of the assets distributed. That is a strong reason to hold back distributions until the tax picture is settled.

Frequently asked questions

Do I pay capital gains tax personally if I inherit a cottage?

The capital gain from the deemed disposition is reported on the deceased's final return. Who ultimately bears the tax, and whether anything applies if you later sell the property yourself, depends on your situation. An accountant can confirm both points.

Can the tax be avoided if the property goes to my spouse?

Property that passes to a spouse, common-law partner or qualifying spousal trust can roll over at cost if the conditions are met, including vesting within 36 months of death. The representative may also elect out of the rollover.

Does the principal residence exemption cover a cottage after death?

The principal residence designation applies only up to the date of death. Whether any gain on a particular property is sheltered depends on the facts, so ask an accountant.

What happens if the executor distributes before getting a clearance certificate?

If tax is owing, the legal representative is personally liable for the unpaid amounts, up to the value of the assets distributed. The certificate is requested on Form TX19.

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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