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Does a Common-Law Partner Inherit If There Is No Will in Ontario?

In Ontario, a common-law partner gets nothing automatically when there is no will. Learn what routes remain: joint property, dependant support and planning.

Family Law5 min readTSLBy the Treadstone Law Team · OntarioUpdated November 1, 2026
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Key takeaways
  • A common-law partner does not inherit under Ontario's Succession Law Reform Act when there is no will, because "spouse" there covers married spouses only.
  • Jointly owned property with a right of survivorship, and a dependant support claim against the estate, may still help a surviving partner.
  • A dependant support application generally has a six-month deadline after probate or letters of administration.

Losing a partner is hard enough without finding out that the law treats your relationship differently from a marriage. If you lived with someone for years and they died without a will, you may assume you inherit. In Ontario, that is not how the default rules work.

This article explains why a common-law partner does not inherit on an intestacy, how that compares with a married spouse, and the routes that can still be open to you. The details turn on the facts, so a lawyer can confirm how they apply to your situation.

Why a common-law partner gets nothing when there is no will

When someone dies without a valid will, the Succession Law Reform Act decides who inherits. A common-law spouse does not inherit under that Act if there is no will, because outside Part V the word "spouse" takes its meaning from section 1 of the Family Law Act, which covers married spouses only.

That definition covers two people who are married to each other, or who entered into a marriage that is voidable or void. It does not include unmarried partners. Living together for decades does not change this for inheritance on an intestacy.

What a married spouse receives, for comparison

The contrast is sharp. If a person dies without a will leaving a married spouse and no children or other descendants, the spouse is entitled to the whole estate. If there are descendants, the spouse first takes a preferential share set by regulation. The amount of that share is set out in the regulation, so check the current figure rather than relying on memory.

There is also an exception for married spouses who were separated at the time of death: the intestacy entitlements for spouses do not apply to them. That rule applies to married spouses and should not be read as applying to common-law partners.

Routes that may still be open to a surviving partner

Not inheriting under the intestacy rules does not always mean being left with nothing. Two routes are worth knowing about.

How a home or account was held is often the first thing to check, because it may decide what passes outside the estate altogether.

Dependant support claims under Part V

For dependant support, "spouse" has a wider meaning. It takes the Family Law Act section 29 meaning, so it includes unmarried partners who cohabited for three years or who had a child together in a relationship of some permanence. A dependant includes a spouse the deceased was supporting, or was legally obliged to support, immediately before death.

The court considers, among other factors, the dependant's contributions to the deceased's welfare, including indirect and non-financial contributions. For a spouse, it also considers how long they cohabited.

IssueWhat the law says
DeadlineAn application may not be made more than six months after the grant of letters probate or letters of administration.
Late applicationThe court may allow one at any time, but only for the part of the estate not yet distributed.
Assets countedJoint accounts, property held in joint tenancy and life insurance the deceased owned can count as part of the estate for the claim.
DistributionOnce notice is served, the personal representative must not distribute the estate until the court decides, unless everyone entitled to apply consents or the court orders otherwise.
AdvancesReasonable advances for support may still be made to dependants who are beneficiaries.

What to do next

Timing matters, so act early. If you are a surviving partner, or you are the person administering an estate with a partner in this position, these steps can help.

For the future, a will and a cohabitation agreement are the main ways to plan ahead. Unmarried partners who are cohabiting, or intend to, may make a cohabitation agreement about their rights and obligations. It must be in writing, signed and witnessed to be enforceable.

Frequently asked questions

Does a common-law partner inherit anything if there is no will in Ontario?

Not under the intestacy rules. A common-law spouse does not inherit under the Succession Law Reform Act when there is no will. You may still have rights through jointly owned property or a dependant support claim.

How long do I have to claim dependant support from the estate?

An application may not be made more than six months after the grant of letters probate or letters of administration. The court may allow a late application, but only for the part of the estate not yet distributed.

Who counts as a partner for a dependant support claim?

For this purpose, unmarried partners are included if they cohabited for three years or had a child together in a relationship of some permanence. The deceased must also have been supporting you, or been legally obliged to support you, immediately before death.

Can the estate be distributed while my claim is pending?

Once notice of the application is served, the personal representative must not distribute the estate until the court decides, unless everyone entitled to apply consents or the court orders otherwise. Reasonable advances for support may still be made to dependants who are beneficiaries.

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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