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Living Trust vs Testamentary Trust in Ontario Explained

Learn how an inter vivos (living) trust differs from a testamentary trust in Ontario, how each is taxed, and the special rules that can apply.

Wills & Estates5 min readTSLBy the Treadstone Law Team · OntarioUpdated November 1, 2026
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Key takeaways
  • A testamentary trust is generally created on and because of a person's death, and an inter vivos (living) trust is any trust that is not.
  • Most trusts are taxed at the top personal rate, but graduated rate estates and qualified disability trusts are the exceptions.
  • Trusts are generally deemed to sell their capital property every 21 years, with different timing for spousal, alter ego and joint partner trusts.

If you are trying to understand a trust that someone has set up, or that you have been named in, you will quickly meet two labels: inter vivos and testamentary. They sound technical, but the difference mostly comes down to when and why the trust began.

The label matters because it affects how the trust is taxed, when it must report, and what special rules may apply. This article explains the two types in plain language so you can ask better questions of the estate trustee, the accountant or a lawyer.

The basic difference

For tax purposes, a testamentary trust is a trust or estate generally created on and because of a person's death. An inter vivos trust, also called a living trust, is any trust that is not a testamentary trust.

In other words, the law defines living trusts by exclusion. If a trust did not arise on and because of a death, it falls into the living category. Someone sets up a living trust while they are alive. A testamentary trust comes into being as a result of a death.

How the two types are generally taxed

As a general rule, a trust's taxable income is taxed at the highest individual percentage, the top personal rate. Graduated rate estates and qualified disability trusts are excluded from that rule.

A graduated rate estate (GRE) is the estate that arises on an individual's death, and it can only be a GRE for up to 36 months after the death. There can be only one GRE for a deceased person. It must designate itself as a GRE on its first T3 return and report the deceased's Social Insurance Number on its returns during that period. A GRE has a deemed tax year-end on the day it stops being a GRE.

A testamentary trust that arose on a death can also be taxed at graduated rates as a qualified disability trust. It must jointly elect with one or more beneficiaries on Form T3QDT and meet the other conditions.

Side-by-side comparison

FeatureLiving (inter vivos) trustTestamentary trust
When it beginsAny trust that is not a testamentary trustGenerally on and because of a death
Usual tax rateTop personal rateTop personal rate, unless it is a GRE or qualified disability trust
Graduated ratesNot generally available under the rulePossible for a GRE (up to 36 months) or a qualified disability trust

The 21-year rule and its exceptions

Generally, a trust is deemed to dispose of its capital property at fair market value every 21 years. That can create a tax bill even though nothing was actually sold, so long-lived trusts need planning.

Spousal, alter ego and joint partner trusts are treated differently. For these, the first deemed disposition happens on the day the beneficiary spouse dies, or on the later of the two deaths, rather than on the usual 21-year date.

For the rollover, the property must vest indefeasibly in the spouse or the trust within 36 months after the death, although the Minister may allow a longer period if a written application is made within that time.

Reporting duties for both types

A trust must file a T3 return if it is a Canadian-resident express trust that is not a listed trust. Other trusts file only if they meet conditions such as having tax payable or being asked to file. Trusts that existed for less than three months, or that held assets worth no more than $50,000 throughout the year, are among the listed trusts generally exempt, although the list has been expanded recently and the current wording is worth confirming.

A trust that must file generally also reports beneficial ownership information on Schedule 15. The T3 is due no later than 90 days after the trust's tax year-end.

What to do next

Frequently asked questions

Is a trust in a will always a testamentary trust?

Generally, a testamentary trust is one created on and because of a person's death. Whether a particular arrangement qualifies for a tax rule depends on its terms and the facts, so confirm with a lawyer or accountant.

How long can an estate be taxed at graduated rates?

An estate can only be a graduated rate estate for up to 36 months after the death. It must designate itself on its first T3 return.

Does a trust ever get taxed at graduated rates apart from an estate?

Yes, a testamentary trust that arose on a death can be a qualified disability trust, taxed at graduated rates. It must jointly elect with one or more beneficiaries on Form T3QDT and meet the other conditions.

When does a trust have to pay tax on gains it never sold?

Generally, a trust is deemed to dispose of its capital property at fair market value every 21 years. Spousal, alter ego and joint partner trusts instead have the first deemed disposition at the beneficiary spouse's death, or the later of the two deaths.

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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