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Changing a Trust in Ontario: Court Approval Under the Variation of Trusts Act

Learn how the Ontario Superior Court of Justice can approve changes to a trust for minors, unborn or incapable beneficiaries, and what the benefit test requires.

Wills & Estates5 min readTSLBy the Treadstone Law Team · OntarioUpdated November 1, 2026
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Key takeaways
  • The Superior Court of Justice can approve an arrangement that varies or revokes a trust, or enlarges the trustees' powers, on behalf of people who cannot consent themselves.
  • For a minor, incapable or unborn person, the court will not approve a variation unless it appears to be for that person's benefit.
  • The Office of the Children's Lawyer must be served where a minor or unborn person has an interest, and it represents the child, not the parents.

A trust written years ago may no longer fit. The trustees may need wider powers, the beneficiaries may want the terms changed, or the whole arrangement may have outlived its purpose. The difficulty is that a trust often has beneficiaries who cannot agree to a change: children, people who lack capacity, or people not yet born.

In Ontario, the Variation of Trusts Act gives the Superior Court of Justice a way to approve a change on behalf of those people. This article explains who the court can speak for, the test it applies, who must be told, and a related option for trustees who just need guidance.

What the Variation of Trusts Act allows

Under the Variation of Trusts Act, the Superior Court of Justice may approve an arrangement that varies or revokes a trust, or that enlarges the trustees' powers. The court gives that approval on behalf of people who cannot consent for themselves.

In plain words, the court can step in for a beneficiary who is unable to say yes. What a change would mean without that approval depends on the trust and the people involved, so it is worth confirming with a lawyer.

Who the court can approve a change for

The Act names four groups the court can consent for:

An adult with capacity who has a clear interest is generally able to give their own consent. The court's role is aimed at the people who cannot. Whether a particular beneficiary falls into one of these groups depends on the wording of the trust and the facts, so it is worth confirming with a lawyer.

The benefit test

The court will not approve a variation on behalf of a minor, incapable person or unborn person unless it appears to be for that person's benefit. It is not enough that the adults all want the change or that it helps the family as a whole.

This means a proposal should be able to show what the vulnerable beneficiary gains. Typical questions a court might expect you to address include how the person's share is affected, whether any protection is lost, and why the change is better for them than leaving the trust alone.

The benefit test, as the Act states it, applies to minors, incapable persons and unborn persons. How it is applied to people with possible interests under a discretionary power depends on the facts of the case.

Why the Office of the Children's Lawyer is involved

The Office of the Children's Lawyer (OCL) must be served with an application to vary a trust where a minor or unborn person has an interest. The OCL represents the child and does not take instructions from the parents.

That can surprise families. Even if a parent supports the proposed change, the OCL looks at the matter from the child's side. A minor in Ontario is a person under 18. A child generally receives their share at 18, or at the age stated in the will or beneficiary designation, so it is worth checking what the trust says about when a child's share is paid.

Widening trustee powers, and the advice and direction option

The Trustee Act sets out investment powers for trustees, but they do not authorize or require a trustee to act inconsistently with the terms of the trust. If the trust document limits what a trustee can do and the trustees need broader room, the arrangement may need to be varied to enlarge their powers.

A different tool applies when the trustee does not want to change the trust but needs direction. A trustee may apply to the Superior Court of Justice, without starting an action, for the court's opinion, advice or direction on managing trust property.

OptionWhat it doesWho it suits
Variation of Trusts Act applicationCourt approves a change, revocation or wider trustee powers for those who cannot consentParties who want the trust terms themselves changed
Trustee Act application for advice and directionCourt gives its opinion, advice or direction on managing trust propertyA trustee unsure how to act under the existing terms

What to do next

Before approaching the court, get clear on what you want changed and who is affected. A lawyer can tell you whether a variation, a request for directions or another route fits your situation.

Frequently asked questions

Can the court change a trust if everyone but a child agrees?

The court may approve an arrangement on behalf of a minor who cannot consent. It will not do so unless the change appears to be for the child's benefit.

Do parents decide for their child in a trust variation?

Not alone. The Office of the Children's Lawyer must be served where a minor or unborn person has an interest, and it represents the child and does not take instructions from the parents.

Can trustees give themselves wider investment powers?

Not on their own. The Trustee Act's investment powers do not authorize a trustee to act inconsistently with the trust's terms. A variation approved by the court can enlarge trustees' powers.

What if a trustee only needs guidance, not a change?

A trustee may apply to the Superior Court of Justice, without starting an action, for the court's opinion, advice or direction on managing trust property.

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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