TREADSTONE LAW · ONTARIO · DIGITAL LEGAL SERVICES · EST. MMXXI ·TSL
Learn/Ask a Lawyer/Family/How does divorce work in…
Family

How does divorce work in Ontario?

TSL Written by the Treadstone Law team· Updated June 2026

Divorce in Canada is governed by the federal Divorce Act, which applies uniformly across all provinces including Ontario. To get a divorce, at least one spouse must have lived in Ontario for at least one year before starting the court application. The sole ground for divorce is marriage breakdown, which is established in one of three ways: one year of separation, adultery, or physical or mental cruelty. The vast majority of divorces proceed on the one-year separation ground.

You start the divorce by filing a court application in the Ontario Superior Court of Justice. The court reviews the application, and if children are involved, the judge must be satisfied that reasonable arrangements have been made for their support. Once approved, the court issues a divorce order, which typically takes effect 31 days later — after which either spouse can request a Certificate of Divorce.

The process can be straightforward if both spouses agree on all issues, or it can involve contested hearings if property, support, or parenting is disputed.

Key takeaways

  • Divorce in Ontario is governed by the federal Divorce Act.
  • The most common ground is one year of separation.
  • One spouse must have lived in Ontario for at least one year before filing.
  • The divorce order takes effect 31 days after it is issued.
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.
Was this helpful?Share:

Go deeper

Still have questions?

Search 2,500 answers, or send yours to a Treadstone lawyer — we answer in plain language.

All answersStart a File →