Is There a Time Limit to File for Divorce in Ontario?

If you separated years ago and never got around to formally divorcing, you might be wondering if you've missed some window to do it. It's a reasonable worry — Ontario family law is full of deadlines. The time limit to file for divorce, though, isn't one of them, and understanding why helps clarify a lot of confusion about what actually has a clock attached to it.

The short answer: there is no fixed deadline for applying for a divorce itself. You can be separated for one year or twenty and still file. What does carry real time limits are certain other claims that often travel alongside a divorce — most importantly, dividing property. Mixing those two up is one of the most common and costly misunderstandings in Ontario family law.

Divorce Itself: No Filing Deadline

Getting divorced under the federal Divorce Act requires proving that your marriage has broken down. In the vast majority of Ontario cases, that's shown by living separate and apart from your spouse for a period of time; a smaller number of cases proceed on the basis of one spouse's adultery or cruelty making continued cohabitation intolerable.

There's no statute-of-limitations clock on when you must apply once that ground exists. Married couples who separate are not required to divorce at any particular point — separation and divorce are legally distinct states, and plenty of people live separated for a long time, resolve support and parenting matters, and only formalize the divorce later, or not at all.

A few practical notes:

• The court granting your divorce must be satisfied there's a jurisdictional connection to Ontario — generally, that you or your spouse have been habitually resident in the province for at least a year immediately before starting the application (figures like this can shift, so confirm the current requirement before relying on it, as of mid-2026).
• The court must also be satisfied that reasonable arrangements have been made for the support of any children of the marriage before granting the divorce.
• You can apply jointly with your spouse or file alone — the process doesn't require your spouse's active agreement, only proper notice.

What Actually Has a Deadline: Dividing Property

This is where people get caught off guard. Married spouses in Ontario are generally entitled to equalize their net family property under the Family Law Act — but a claim to equalize property is subject to a limitation period. That period is tied to a combination of factors: how long it's been since separation, since a divorce is finalized, or since a spouse's death, whichever comes first under the Act's rules.

The exact number of years and months involved is specific and strict, and it's not something to estimate on your own — the precise calculation depends on your dates and circumstances, and getting it wrong can mean permanently losing a property claim. If you've been separated for a meaningful length of time and haven't resolved property issues, that's the deadline to get in front of, not the divorce filing itself.

Why this distinction matters in practice

Common Situations That Prompt This Question

• You separated years ago and never divorced. You can still file. The bigger question is whether any property claims are still open — that's worth checking promptly.
• You want to remarry. You must be divorced (not just separated) to legally remarry in Ontario, but there's still no deadline forcing you to file — only your own plans set the timeline.
• Your ex has already remarried without formally divorcing you. This isn't legally possible — a person cannot remarry while still legally married to someone else. If this comes up, get advice quickly, since it points to a serious legal problem rather than a simple oversight.
• You're worried you "waited too long." For the divorce itself, there's no such thing. For property claims, it's worth confirming your position rather than assuming either way.

Frequently asked questions