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Common-Law Partner Dies Without a Will in Ontario: Your Options

Unmarried spouses do not inherit on intestacy in Ontario. Learn what a surviving common-law partner can still claim, from estate support to pensions.

Family Law5 min readTSLBy the Treadstone Law Team · OntarioUpdated November 6, 2026
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Key takeaways
  • Under the intestacy rules, "spouse" means married spouses only, so a common-law partner does not inherit automatically.
  • A qualifying common-law spouse can apply for dependant's support from the estate, within six months of the grant of letters probate or letters of administration.
  • Pensions, the Canada Pension Plan and property contribution claims follow their own rules, so each one needs to be checked separately.

Losing a partner is hard enough without discovering that there is no will. Many people assume that years of living together gives them the same position as a married spouse. In Ontario, that is not how inheritance works when someone dies without a will.

This article explains what dying without a will (called dying intestate) means for an unmarried partner, and what options may still be open to you. The details depend on your facts, so treat this as a starting point and not a substitute for advice.

Why a common-law partner does not inherit automatically

When someone dies without a valid will, the Succession Law Reform Act decides who inherits under its intestacy rules. For those rules, "spouse" has the Family Law Act meaning, which covers married spouses only. The general Family Law Act definition reaches two people who are married to each other, or who entered a void or voidable marriage in good faith.

The result is blunt: a common-law partner does not inherit under the intestacy rules, no matter how long the couple lived together. That can be a shock if the home, the savings and the daily life were shared.

The door that stays open: dependant's support from the estate

A different part of the same Act works differently. A qualifying common-law spouse can apply for dependant's support from the estate. In Part V of the Succession Law Reform Act, "spouse" takes the Family Law Act s. 29 meaning.

Under s. 29, that includes two unmarried people who cohabited continuously for at least three years, or who were in a relationship of some permanence and are the parents of a child. If you have a child together, the three-year period is not required, as long as the relationship had some permanence.

QuestionIntestacy (inheriting)Dependant's support claim
Does an unmarried partner count as a spouse?No, married spouses onlyYes, if the s. 29 test is met
Is there an automatic entitlement?Not for a common-law partnerNo, you must apply
Is there a deadline?Not applicableSix months from the grant of letters probate or letters of administration

Other money and property that may be in play

Inheritance is only one piece. Several other entitlements use their own definitions of a partner, so you may qualify for some even though you do not inherit.

Common-law partners also have no statutory right to share or stay in a home owned by the other partner. If the home was in your partner's name alone, speak with a lawyer soon about your position.

How a cohabitation agreement or will would have helped

Unmarried people who are cohabiting, or intend to cohabit, may make a cohabitation agreement covering property, support and other matters, including on death. It is unenforceable unless it is in writing, signed by the parties and witnessed. If your partner signed one, find it early, because it may change the picture.

If you are reading this for your own planning, the lesson is simple: a current will and, where it fits, a cohabitation agreement are the clearest ways to protect an unmarried partner.

What to do next

Whether you qualify as a spouse can turn on detailed facts, so a lawyer can confirm your position before time runs out.

Frequently asked questions

Do I inherit if my common-law partner dies without a will in Ontario?

Not automatically. For the intestacy rules, "spouse" means married spouses only, so a common-law partner does not inherit under them. You may still be able to apply for dependant's support from the estate.

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

The application must be made within six months of the grant of letters probate or letters of administration. Because that clock starts on the grant, it is worth getting advice early.

Do we need three years together to qualify?

Unmarried partners can qualify as spouses for the estate support claim if they cohabited continuously for at least three years. Parents of a child can qualify if the relationship had some permanence.

Can I still get my partner's pension?

Possibly. The Pension Benefits Act definition of spouse includes qualifying unmarried partners, and the person who is the spouse on the date of death is entitled to the pre-retirement death benefit if the pension had not started. The plan and your facts matter, so confirm the details.

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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