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What Must a Trust Deed Contain in Ontario?

A document isn't a valid trust just because it's labelled one. See the legal elements an Ontario trust deed needs to include to actually hold up in practice.

Wills & Estates5 min readTSLBy the Treadstone Law team · OntarioUpdated 2026-07
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Key takeaways
  • Before anything else, a trust deed needs to satisfy what Ontario trust law calls the three certainties: - Certainty of intention — the document must show a genuine, binding intention to…
  • The settlor The person creating the trust and transferring property into it.
  • The trust property — sometimes called the corpus — needs to be described specifically enough that there's no doubt what's inside the trust: a particular property, a specific investment…

Calling a document a "trust deed" doesn't make it one. Ontario law looks at substance, not labels — certain elements must actually be present and clearly expressed before a document functions as a valid, enforceable trust.

Whether you're reviewing a document a lawyer drafted for you, or trying to understand what should be in a trust before you sign anything, these are the pieces that matter.

The Three Certainties Come First

Before anything else, a trust deed needs to satisfy what Ontario trust law calls the three certainties:

A document missing any one of these risks failing as a trust altogether, regardless of what it's titled.

Who Must Be Identified

The settlor

The person creating the trust and transferring property into it.

The trustee — and a successor

Who will hold and manage the trust property, and, just as important, who steps in if that person can no longer act, dies, or resigns. A trust deed without a succession plan for the trustee role can leave a trust without anyone able to act on its behalf.

The beneficiaries or beneficiary class

Named individuals, or an objectively identifiable class, such as "my grandchildren living at my death."

What Property Is Actually Being Transferred

The trust property — sometimes called the corpus — needs to be described specifically enough that there's no doubt what's inside the trust: a particular property, a specific investment account, or "all of my right, title, and interest in" a named asset. Vague descriptions create exactly the kind of ambiguity a trust is supposed to prevent.

The Terms: Powers, Duties, and Discretion

A trust deed typically spells out:

Leaving these vague forces a trustee to fall back on general default rules that may not match what the settlor actually wanted.

Administrative Provisions

Skipping that last point is one of the more common gaps in poorly drafted trusts, and exactly the kind of detail that leads to disputes years later if it isn't addressed up front.

Execution: Signing the Document Properly

Ontario law doesn't impose the same rigid two-witness signing formula on an ordinary lifetime trust deed that it does on a will or a power of attorney. Even so, signing it properly — often before a witness, with the settlor's and trustee's roles clearly acknowledged — remains standard legal practice, since a poorly executed document invites disputes about whether it was ever validly created.

A testamentary trust — one created inside a will rather than as a stand-alone document — is different: it must meet the will's own formal signing and witnessing requirements, because it only exists as part of a validly executed will.

Frequently asked questions

Do I need a lawyer to draft a trust deed?

There's no absolute requirement for every situation, but a document missing one of the three certainties, a succession plan for the trustee, or clear termination terms can fail to work as intended — often not discovered until years later, when it's hard to fix.

Can a trust deed be handwritten, the way a holograph will can?

Ontario recognizes a handwritten, unwitnessed will in narrow circumstances, but there's no equivalent shortcut for a trust deed. In practice, virtually every trust used in estate planning should be a carefully drafted, properly executed document.

What happens if a trust deed is missing one of the required elements?

The outcome depends on which element is missing and the specific facts. The arrangement can fail as a trust entirely, or the property can end up back with the person who tried to create it, rather than going where they intended.

Does a trust deed need to be filed anywhere, like a will?

Generally, no. A private trust deed itself doesn't go through a public court filing the way a will does after probate, though transfers of specific assets, like real property, still need to be registered through the usual channels.

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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