TREADSTONE LAW · ONTARIO · DIGITAL LEGAL SERVICES · EST. MMXXI ·TSL
Licensed by the Law Society of OntarioFlat fees published upfrontWe reply to messages within 1 business daySign in
Home/Articles/Wills & Estates
№ 22 Wills & Estates

The 21-Year Rule for Family Trusts in Ontario: What Happens at Year 21?

Understand the 21-year deemed disposition rule for family trusts, what gets taxed at year 21, how to report it and what options to discuss early.

Wills & Estates5 min readTSLBy the Treadstone Law Team · OntarioUpdated October 28, 2026
← All articles
Key takeaways
  • A trust is deemed to dispose of its non-exempt capital property at fair market value on the day 21 years after the latest of January 1, 1972 and the trust's creation, and again every 21 years after that.
  • Moving property to another trust does not postpone the 21-year date.
  • Gains from a 21-year deemed disposition are reported on Form T1055.
  • Planning well before the anniversary gives trustees time to compare options with an accountant and lawyer.

If you are the trustee of a family trust that is approaching its 21st anniversary, you may have heard of a tax rule that can create a large bill even though nothing was sold. It is often called the 21-year rule.

This article explains the general idea, what it means for tax on a trust and the kinds of options trustees usually discuss with their advisers. The details turn on your trust's assets and wording, so use this as a starting point for that conversation.

What the 21-year rule says

Under the Income Tax Act, a trust is deemed to dispose of its non-exempt capital property at fair market value on the day 21 years after the latest of January 1, 1972 and the trust's creation. It is then treated as reacquiring the property at that value, and the same thing happens again every 21 years.

In plain words, the trust is treated as if it sold the property and bought it back, even though no sale took place. If the property has gone up in value, the increase can be taxed, and the trust may have to pay without having received any cash from a sale.

Which trusts and which property

An inter vivos trust is any trust that is not a testamentary trust. A testamentary trust is generally created on and as a result of an individual's death, for example under a will or estate. The 21-year rule is a trust-wide rule, so it is worth confirming whether your trust is caught.

Why the tax can be heavy, and why you cannot just move assets

An ordinary trust that keeps its income is generally taxed at the top individual rate, without graduated brackets. A trust can deduct income that becomes payable to a beneficiary in the year, and the beneficiary then includes that amount in their own income. That is why trusts often pay out income, but a deemed gain from the 21-year rule is a separate question that you should model with your accountant.

Moving property from one trust to another does not postpone the 21-year date. The receiving trust's date is set to the earliest of specified dates tied to the transferor trust, with exceptions for spousal, alter ego and joint spousal trusts. Simply transferring assets to a new trust is therefore not a safe way to reset the clock.

Options trustees commonly discuss

There is no single right answer, and the tax result of each option depends on the assets, their cost and current value, and who the beneficiaries are. These are the usual topics for a conversation with your accountant and lawyer, well before the anniversary.

OptionPoints to consider
Do nothing and report the deemed dispositionThe trust reports the gain on Form T1055. Plan for how the tax will be paid.
Distribute property to beneficiaries before the dateThe tax result for the trust and for each beneficiary depends on the trust's terms and the assets. Confirm with an accountant.
End the trust by agreementBeneficiaries of full legal capacity who together hold all beneficial rights, with the consent of all with an interest, may be able to end a trust; contingent interests are not enough.
Transfer to another trustThis does not postpone the 21-year date.

Ending a trust early is only possible when the strict conditions are met, and a sole competent adult who is absolutely entitled can collapse the trust. If any beneficiary is a minor, unborn or unascertained, the Office of the Children's Lawyer may need to be involved in certain court applications.

Reporting and what to do next

A T3 return and any balance owing are due no later than 90 days after the trust's tax year-end. A resident express trust that is not a listed trust must file a T3 every year, even with no income. Most trusts that file a T3 must include Schedule 15 with beneficial ownership information. A late T3 with no unpaid tax at the deadline carries a penalty of $25 a day, minimum $100, maximum $2,500.

Frequently asked questions

Does the 21-year rule mean the trust has to sell its property?

No sale is required. The trust is deemed to dispose of non-exempt capital property at fair market value and reacquire it at that value. The tax may still need to be paid in cash, so planning matters.

Can I move the assets into a new trust to start the clock over?

Generally no. Moving property from one trust to another does not postpone the 21-year date, with exceptions for spousal, alter ego and joint spousal trusts.

What form reports the gain?

Gains on a 21-year deemed disposition are reported on Form T1055. Your accountant can confirm how it fits with the trust's T3 return.

Do all trusts face the 21-year rule?

Not all. Alter ego and joint partner trusts use the death of the settlor or last beneficiary instead, and PRPP trusts are excluded. Whether your trust qualifies for any exception depends on its terms.

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.

This is a wills & estates question

Start a file online — flat, published fees, reviewed by a licensed lawyer before a dollar is owed.

ContactStart a File →