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Family

Can an Unmarried Partner Claim Spousal Support in Ontario?

TSL Written by the Treadstone Law Team· Updated November 1, 2026

Yes, an unmarried partner can claim spousal support in Ontario if they meet the Family Law Act's wider meaning of spouse for support. That covers two unmarried people who have cohabited continuously for at least three years, or who are in a relationship of some permanence and are the parents of a child. Parents do not need the three years, but the relationship must still have some permanence.

Qualifying is only the first step, because support is not automatic. You must also show a basis for it, such as caregiving or career sacrifices during the relationship, need after separation together with the other spouse's ability to pay, or an agreement that provides for support. The court weighs all the circumstances, including each person's means, age, health and steps toward self-support.

For a spouse, it also looks at how long you cohabited, housekeeping and child care work, and the effect of caring for a child on earnings and career. Lawyers and judges often use the Spousal Support Advisory Guidelines for amount and length, but they are only guidelines. Whether you qualify depends on your facts.

Key takeaways

  • Unmarried partners can qualify as spouses for support after cohabiting continuously for at least three years.
  • If you are parents of a child together, you can qualify without the three years, as long as the relationship has some permanence.
  • Support is not automatic, because you must show a basis such as caregiving, career sacrifices, need and ability to pay, or an agreement.
  • There is no limitation period for a proceeding to obtain support under the Family Law Act.
This is general information, not legal advice. It doesn’t create a lawyer–client relationship, and the rules can change. For advice on your situation, a Treadstone family lawyer can help.

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Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

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