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№ 22 Wills & Estates

T3 Trust Return and Schedule 15 Rules for Ontario Trustees

Find out when an Ontario trustee must file a T3 return, the deadline and penalties, what Schedule 15 reports, and how bare trusts are treated.

Wills & Estates4 min readTSLBy the Treadstone Law Team · OntarioUpdated November 6, 2026
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Key takeaways
  • A Canadian-resident express trust that is not a listed trust must file a T3 return, and the return is due 90 days after the trust's tax year-end.
  • A trust that must file a T3 return generally must also report beneficial ownership information on Schedule 15.
  • Bare trusts need not file for years ending after December 31, 2024 and before December 31, 2026, but reportable bare trusts may have to file after that.

If you act as a trustee, whether for a family trust or an estate, the Canada Revenue Agency expects the trust to file a T3 return in many cases. The rules have grown stricter in recent years, and Schedule 15 now asks for details about the people behind the trust.

This article explains who has to file, the deadline and penalties, what Schedule 15 is for, and how bare trusts fit in. The rules are changing, so confirm the current position with an accountant before you file.

Who has to file a T3 return

A trust must file a T3 return if it is a Canadian-resident express trust that is not a listed trust. Other trusts must file only if they meet conditions such as having tax payable or being asked to file.

Listed trusts are generally exempt from filing under Income Tax Act s. 150(1.2). Which trusts count as listed trusts, including any tests based on how long the trust existed or what it holds, can change from year to year, so confirm the current wording with an accountant before relying on an exemption.

Deadlines and penalties

A T3 return is due no later than 90 days after the trust's tax year-end. For a December 31, 2025 year-end, the deadline was March 31, 2026.

SituationPenalty
Late return with unpaid tax5% of the unpaid tax, plus 1% for each full month late, up to 12 months
Late return, no tax owing$25 a day, with a minimum of $100 and a maximum of $2,500
Gross negligence or knowingly false statements (non-listed trust)The greater of $2,500 and 5% of the highest fair market value of the trust's property

A late return can be costly even where no tax is owing, so do not wait for a tax bill to prompt you.

What Schedule 15 reports

A trust that must file a T3 return generally must also report beneficial ownership information on Schedule 15. In plain terms, the CRA wants to know who is behind the trust, not only who holds legal title.

The specific details required are set out on the form and in the CRA guide. As trustee, you should collect that information well before the deadline and keep it current.

Bare trusts

A bare trust is an arrangement where the trustee can reasonably be considered to act as agent for all the beneficiaries and has no significant powers or responsibilities. For most tax purposes it is treated as not being a trust.

Bare trusts do not have to file a T3 return for tax years ending after December 31, 2024 and before December 31, 2026. For years ending on or after December 31, 2026, reportable bare trusts are subject to the trust reporting rules and may have to file. If a bare trust does have to file, how the due date applies to it depends on the facts, so it is worth confirming with an accountant.

Not every bare trust is reportable. These are among the exceptions:

What to do next

Start by working out which kind of arrangement you have. Many family arrangements, such as a parent on title for a child's mortgage, may fall under an exception, but the answer depends on the facts and the current CRA guidance.

Frequently asked questions

When is my T3 return due?

A T3 return is due no later than 90 days after the trust's tax year-end. For a December 31, 2025 year-end, that meant March 31, 2026.

What is the penalty for filing late?

With unpaid tax, it is 5% of the unpaid tax plus 1% for each full month late, up to 12 months. Where no tax is owing, it is $25 a day, with a minimum of $100 and a maximum of $2,500.

Does a bare trust have to file?

Not for years ending after December 31, 2024 and before December 31, 2026. For years ending on or after December 31, 2026, reportable bare trusts may have to file. Some bare trusts, such as certain joint accounts and principal residence arrangements, are not reportable.

Is a small or short-lived trust exempt?

Listed trusts are generally exempt from filing. Whether a small or short-lived trust counts as a listed trust depends on the current wording of the rules, which can change, so confirm it with an accountant before relying on an exemption. A Canadian-resident express trust that is not a listed trust must file a T3 return.

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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