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

Constructive Trust Claims Against an Estate in Ontario Explained

Learn how a caregiver or someone who contributed to property may claim a share of an Ontario estate through unjust enrichment, and what usually matters.

Wills & Estates5 min readTSLBy the Treadstone Law Team · OntarioUpdated October 28, 2026
← All articles
Key takeaways
  • Claims based on your care or contributions to a parent's property are not written down anywhere, so they depend heavily on the facts and the evidence you can gather.
  • It is a different idea from a resulting trust, which is the presumption courts apply to some gifts from parents to adult children and to joint accounts.
  • The estate trustee is the person who collects assets, pays debts and taxes, and distributes what remains.
  • Whether a claim is realistic depends heavily on the facts and the evidence, so it is worth speaking to a lawyer early.

You may have looked after a parent for years, moved in to help, or put money or work into a house that stayed in the parent's name. Now the parent has died, and the will or the law sends the estate somewhere that does not reflect what you gave. It is natural to ask whether you can claim something back.

One way people try to do this is a claim based on unjust enrichment and a constructive trust. This article explains in plain terms how it differs from other trust ideas that come up in estates, and what to gather and do next. It cannot tell you whether your own claim will succeed, because that turns on the details.

What a constructive trust claim means in plain words

Unjust enrichment and constructive trust are terms lawyers use when someone says their care, money or work benefited a person or a property and should be recognized. How those terms apply to your situation depends on the facts, so it is worth confirming with a lawyer.

Who tends to raise these claims

These claims commonly come from people whose contribution was never written down. Typical situations include:

Whether any of these situations leads to a claim depends on your facts and the evidence, so it is worth confirming with a lawyer.

How it differs from resulting trusts and joint accounts

People often mix up constructive trusts with resulting trusts. Both involve a court treating property as held for someone, but they start from different places. The Court of Appeal for Ontario has applied a presumption of resulting trust to a gratuitous transfer from a parent to an adult child, including bank accounts put into joint names with a right of survivorship. Under that presumption the person who received the transfer bears the onus, and it is rebutted by evidence of the parent's contrary intention to make a gift, proven on a balance of probabilities.

In a joint account dispute, the question is who owns the right of survivorship, and the court looks at the parent's actual intention when the account was made joint. That is about what the deceased meant to do with the asset, not about whether you earned a share by contributing.

IdeaStarting questionTypical setting
Constructive trust (unjust enrichment)Depends on the facts, so worth confirming with a lawyerCaregiving, money or work put into property
Resulting trustDid the deceased actually intend a gift when transferring the asset?Parent putting an account or property into an adult child's name
Joint account survivorshipWho owns the right of survivorship?Joint bank accounts held with a parent

Who handles the claim and what to expect

An estate trustee is responsible for collecting the estate's assets, paying taxes and debts, and distributing the remainder under the will and the law. In Ontario a court may appoint an estate trustee where there is no will, no trustee is named, or the named trustee asks for confirmation.

If the estate includes a minor or an unborn or unascertained person with an interest, the Office of the Children's Lawyer must be served on an application to pass estate accounts. The Office can also ask an estate trustee for accounts and supporting records. This is one reason a claim can affect more people than the family members you have in mind.

Claims against an estate can be affected by deadlines, and by the type of claim and the court procedure used. Because those rules depend on the facts, confirm them with a lawyer as soon as you can rather than waiting.

What to do next

Early organization makes a real difference, because the strength of this kind of claim rests on evidence. Consider these steps:

Frequently asked questions

Can I claim against an estate if I cared for my parent and nothing was written down?

Whether you have a claim depends on your facts and the evidence of what you contributed. It is worth confirming with a lawyer who can assess your situation.

Is a constructive trust the same as a resulting trust?

They are different ideas. A resulting trust looks at whether the deceased intended a gift when transferring an asset, such as a parent putting a bank account into an adult child's name. Whether a constructive trust applies to your situation depends on the facts, so it is worth confirming with a lawyer.

What if my parent made me joint owner of a bank account?

In a dispute over a joint account, the court looks at the parent's actual intention when the account was made joint. For a transfer from a parent to an adult child, the recipient bears the onus of showing a gift was intended.

Who do I deal with when I make a claim?

Usually the estate trustee, who collects assets, pays debts and taxes, and distributes the remainder under the will and the law. If the matter goes to court, other people with an interest may also need to be involved.

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 →