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Family Law Act Ontario: What It Covers and Who It Applies To

Learn what Ontario's Family Law Act deals with, how it differs from the federal Divorce Act, and why married and common-law couples are treated differently.

Family Law4 min readTSLBy the Treadstone Law Team · OntarioUpdated October 28, 2026
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Key takeaways
  • The federal Divorce Act applies to married spouses only, so other couples rely on Ontario's provincial laws.
  • Ontario's property rules split property equally between married spouses, but common-law couples are not legally required to split property.
  • A divorce is granted on breakdown of the marriage, and the Superior Court of Justice hears divorce and property division, which the Ontario Court of Justice does not.
  • Whether someone counts as a spouse for a particular claim depends on the statute and the facts, so it is worth confirming with a lawyer.

If you are separating in Ontario you will hear about two main laws: the Family Law Act, which is Ontario's own statute, and the Divorce Act, which is federal. People often mix them up, and which one applies depends on whether you are married and what you are asking for.

This article explains the general split between the two, how married and common-law partners are treated, and where the rules overlap. It does not replace advice on how the law applies to you.

Two laws, two roles

The Divorce Act is a federal law. It governs divorce itself, which is granted on breakdown of the marriage, established when the spouses have lived separate and apart for at least one year immediately before the determination. Under the Divorce Act, parenting time may be allocated by schedule and decision-making responsibility may be allocated in whole or in part.

The Family Law Act is Ontario's provincial statute, and it is a separate law from the Divorce Act, which applies to married spouses only.

Divorce ActFamily Law Act
Level of lawFederalOntario (provincial)
Who it coversMarried spouses onlyDepends on the statute's definition of spouse; confirm with a lawyer
Ends a marriageYes, on breakdown of the marriageDepends on your situation; confirm with a lawyer

Who counts as a spouse?

Under the Divorce Act, only married spouses are covered, and in certain sections the word spouse includes a former spouse. That means a common-law partner cannot obtain a divorce.

How the Family Law Act treats an unmarried partner depends on your situation, so it is worth confirming with a lawyer before you rely on it.

Property: married versus common-law

Property is where the married and unmarried treatment differs most. Married spouses must generally split property acquired during the marriage equally when the marriage ends, and the family home is shared at full value even if it was owned before the marriage, gifted or inherited. The court can divide differently only in very special situations.

The equalization payment is the larger net amount minus the smaller, divided by two. To have a court decide the payment, you must apply within six years from the day of separation or two years from the day the divorce is final, whichever comes first.

Common-law couples are not legally required to split property acquired while living together. A partner who contributed to property the other owns may have a right to part of it, and may need to go to court to recover that contribution.

Support, parenting and which court

Child support and spousal support, and parenting time and decision-making, can be dealt with by both the Superior Court of Justice and the Ontario Court of Justice. The Superior Court of Justice hears divorce, division of family property, family home claims, and trust and unjust enrichment claims, while the Ontario Court of Justice does not hear divorce or property division.

The Family Court Branch of the Superior Court sits in 25 locations, including Barrie, Lindsay and Peterborough, and can hear all types of family law cases.

What to do next

Frequently asked questions

Does the Family Law Act apply if we were never married?

How it applies depends on your facts and the claim you are making, so it is worth confirming with a lawyer. The Divorce Act does not apply to you because it covers married spouses only.

Do common-law partners split property equally?

Not automatically. Common-law couples are not legally required to split property acquired while living together, though a partner who contributed to property the other owns may have a right to part of it.

Can I get a divorce under the Family Law Act?

No. A divorce is granted under the federal Divorce Act on breakdown of the marriage, shown by living separate and apart for at least one year. It is heard in the Superior Court of Justice.

Is there a deadline to claim an equalization payment?

Yes. You must apply within six years from the day of separation or two years from the day the divorce is final, whichever comes first. Talk to a lawyer early so you do not miss it.

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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