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/Family Law
№ 77 Family Law

Is a Common-Law Breakup a Divorce in Ontario? What Changes

Unmarried in Ontario? Learn why a common-law breakup needs no divorce, and how property and spousal support rights differ from those of married spouses.

Family Law6 min readTSLBy the Treadstone Law Team · OntarioUpdated November 1, 2026
← All articles
Key takeaways
  • No divorce is needed when an unmarried couple separates, because only married couples can divorce.
  • Unmarried partners are not legally required to split property acquired while living together, but a partner who contributed to the other's property may have to go to court to recover that contribution.
  • For spousal support, Ontario's Family Law Act can treat some unmarried partners as spouses, including those who lived together continuously for at least three years.

If you and your partner lived together without marrying and the relationship is ending, you may wonder whether you have to get a divorce. You may also wonder whether you have the same rights as a married person. The short answer to the first question is no. The answer to the second is more mixed.

This article explains why a divorce is not part of a common-law breakup. It also compares how property and support generally work for married and unmarried couples. Every situation is different, so treat this as a starting point and confirm the details with a lawyer.

Why there is no divorce for common-law partners

A divorce is a legal process that ends a marriage. Only married couples can divorce, so an unmarried couple has nothing to divorce from. How the rest of your separation is handled depends on your situation, so it is worth confirming with a lawyer.

For married spouses the picture is different. A divorce takes effect on the 31st day after the judgment granting it is made, and once it takes effect it ends the marriage and has legal effect throughout Canada. Married spouses also have to meet rules such as one year of living separate and apart in most cases. None of this applies to you if you were never married.

That does not mean a common-law breakup has no legal side. Property, support, the home and any children can all still need to be sorted out. The difference is that different rules apply.

Property: the biggest difference

When married spouses separate, Ontario's Family Law Act uses an equalization process. In general, the spouse with the smaller net family property is entitled to one-half of the difference between the two spouses' net family property.

Unmarried couples are not legally required to split property acquired while living together. How property is sorted out between you depends on your situation, so it is worth confirming with a lawyer. There is an exception to keep in mind: a partner who contributed to the other's property may have to go to court to recover that contribution.

TopicMarried spousesUnmarried partners
Ending the relationshipA divorce ends the marriage once it takes effectNo divorce, because only married couples can divorce
PropertyThe spouse with the smaller net family property is entitled to half the differenceNo legal requirement to split property acquired while living together
Contributions to the other's propertyHow this applies depends on your situation, so it is worth confirming with a lawyer.May need a court claim to recover the contribution
Spousal supportCourt can order reasonable support in a divorcePossible if you meet the Family Law Act definition of spouse

Because the rules differ, it matters a great deal what you paid for, who is named on title or accounts, and what you can show about your contributions. Gather that paperwork early.

Spousal support after a common-law relationship

Support is one area where unmarried partners are not left out. For spousal support under the Family Law Act, "spouse" also includes unmarried people who lived together continuously for at least three years, or who are in a relationship of some permanence and are the parents of a child.

Meeting that definition does not decide whether support will be ordered or how much. How a court weighs your circumstances depends on your facts, so it is worth confirming with a lawyer. Ontario guidance says the Spousal Support Advisory Guidelines are only guidelines, though lawyers and judges often use them to help set the amount and length of support.

The home, children and other loose ends

Who stays in the home, and what happens to the children, are separate questions from property. The rules in this area can depend on whether you were married, who owns or rents the home, and your children's circumstances. A lawyer can confirm how they apply to you. Do not assume the married-couple rules cover you, or that they leave you out.

A few other points are worth checking, even though no divorce is involved:

What to do next

No divorce is needed to end a common-law relationship, and taking a few practical steps now can protect you later.

Mediation can help you reach an agreement without a court fight. On-site mediation is free on the day a matter is scheduled in court, and off-site mediation is charged on a sliding scale. A lawyer can also tell you whether any deadlines apply to a claim in your situation.

Frequently asked questions

Do I need a divorce if we were never married?

No. Only married couples can divorce, so an unmarried couple does not need one. How the rest of your separation is handled depends on your situation, so it is worth confirming with a lawyer.

Do common-law partners split property equally?

Not automatically. Unmarried couples are not legally required to split property acquired while living together. A partner who contributed to the other's property may have to go to court to recover that contribution.

Can I claim spousal support if we were common-law?

Possibly. For spousal support under the Family Law Act, spouse includes unmarried people who lived together continuously for at least three years, or who are in a relationship of some permanence and are the parents of a child. Whether support is ordered depends on your circumstances.

Does a sponsorship undertaking end when we separate?

No. A spousal sponsorship undertaking lasts 3 years from the day the sponsored person becomes a permanent resident (outside Quebec), and separation does not end the sponsor's financial responsibility. A lawyer or IRCC can confirm how it applies to you.

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 family law question

Start a file online — flat, published fees, reviewed by a licensed lawyer before a dollar is owed.

ContactStart a File →