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

Challenging a Joint Account or Title After a Parent Dies in Ontario

Think a joint account or property should belong to the estate? Learn Ontario's resulting trust test, the evidence courts weigh, and how to proceed.

Wills & Estates4 min readTSLBy the Treadstone Law Team · OntarioUpdated November 6, 2026
← All articles
Key takeaways
  • When an adult child is added to a parent's account or asset without paying, the law presumes the child holds it in trust for the parent and, on death, the estate.
  • Courts look at the bank documents, who controlled the money, and other evidence of what the parent intended.
  • A joint asset that is held on resulting trust for the estate does not escape estate administration tax.

A parent dies, and the bank account or house that you expected to be part of the estate was in joint names with one sibling. That sibling says it is now theirs. You think your parent only added them for convenience.

This is a common dispute, and the law has a starting point that helps people in your position. This article explains the test, the evidence that matters, and the practical steps.

The starting point: a presumption of resulting trust

For gratuitous transfers, the Supreme Court of Canada has said the presumption of resulting trust is the general rule. The person receiving the transfer bears the onus of showing a gift was intended. An adult child added to a parent's account or asset without payment is presumed to hold it in trust for the parent and, on death, for the estate.

The exception is minor children, where a presumption of gift applies. Financial dependency of an adult child does not trigger it, though it can be strong evidence against a resulting trust.

What evidence courts consider

The question is what the parent intended when the transfer was made. Courts can consider:

There is a wrinkle with joint accounts. Survivorship rights vest when the account is opened, so the gift is made during life, and what is gifted is the survivor's interest in the balance at death. Federal guidance notes that heirs may challenge the survivor, who may need to show the deceased intended the funds as a gift.

Spouses are treated differently

If the joint owner was the parent's spouse, the analysis changes. Between spouses, property held as joint tenants is proof, without evidence to the contrary, that they intended to own it jointly, and money on deposit in both spouses' names is deemed held as joint tenants. Challenging a surviving spouse's joint holdings is therefore harder, and a lawyer can advise on what evidence might apply.

Other routes and the money at stake

A resulting trust argument is not the only path. If you were a dependant, you may apply for support from the Superior Court of Justice, and certain joint assets are deemed part of the net estate for that claim. The claimant must prove the funds belonged to the deceased, and a dependant who was the other party must prove their own contribution. The application deadline is six months after the certificate is granted, with a possible exception for undistributed property.

If the estate's value is for estate administration tax, property held in another person's name that belongs to the deceased is included, and a joint asset held on resulting trust for the estate does not escape the tax. Above $50,000, the tax is $15 for every $1,000 or part of the estate's value. Whether to include a disputed asset is something the estate trustee and a lawyer should address.

RouteBasic idea
Resulting trustAsset held for the estate unless a gift was intended
Dependant supportCourt may order provision from the estate
Partition or saleAny joint tenant may be compelled to partition or sell land

What to do next

Frequently asked questions

Does a joint account automatically belong to the surviving holder?

Not always. Many joint accounts carry survivorship, but heirs may challenge the survivor, who may need to show the deceased intended the funds as a gift. For an adult child added without payment, the law presumes a trust for the estate.

What if my sibling says our parent was financially supporting them?

Financial dependency of an adult child does not create a presumption of gift, although it can be strong evidence against a resulting trust.

Which court handles a dependant support claim?

The Superior Court of Justice, on application, and the application is generally subject to a six-month deadline. Other disputes also depend on the facts, so a lawyer can confirm the right process.

Can the bank freeze the account if I object?

Payments under these transactions may continue unless a certified copy of a suspensory order has been personally served on the holder. Raise the issue with a lawyer before funds are paid out.

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 →