Quick Overview
- No. Ontario law does not give common-law couples the same property rights as married spouses, regardless of how long they’ve lived together
- The word “spouse” doesn’t mean the same thing everywhere in Ontario law. Some statutes include common-law partners, others don’t, and the difference matters enormously
- Property division and the matrimonial home are reserved exclusively for married spouses. Support obligations extend to common-law partners who meet specific thresholds
- A common-law partner can be required to leave a home they don’t own. A married spouse has an equal statutory right to possess the matrimonial home no matter whose name is on title, and can only be excluded by court order
- Other laws, covering healthcare decisions, estate administration, and dependant support, use their own separate definitions of “spouse” that don’t line up with the property rules
- This gap affects a genuinely large number of people. Common-law relationships have grown dramatically across Canada over the past few decades
The Short Answer Is No, and It’s Not Close
People often assume that living together long enough eventually creates the same legal footing as marriage. In Ontario, it doesn’t, not for property. Married spouses get an automatic statutory right to share equally in the wealth built during the marriage. Common-law spouses get nothing close to that, no matter how many years they’ve spent together or how deeply their finances have become intertwined.
“Spouse” Doesn’t Mean One Thing Under Ontario Law
This is the part that trips people up the most. Ontario’s Family Law Act actually uses two different definitions of “spouse” depending on which part of the law is being applied. For property division and matrimonial home rights, “spouse” means only someone legally married, full stop. But for support obligations, the definition widens considerably, including common-law partners who’ve lived together continuously for three years, or who have a child together and have been in a relationship of some permanence.
So a common-law partner can genuinely qualify for spousal support while having zero right to a share of property, these are entirely separate legal questions governed by entirely separate rules within the same piece of legislation.
Where the Gap Actually Shows Up
Property division. Married spouses get equalization, a formula that generally divides the financial growth of the marriage equally. That claim still has to be brought, and time limits apply — generally two years after a divorce judgment or six years after separation, whichever comes first. A court can also order an unequal division in limited circumstances where equal division would be unconscionable. Common-law partners get none of this. Property simply belongs to whoever’s name is on it. A common-law partner who contributed money or years of unpaid labour toward an asset owned by their partner has no automatic claim to any of it, they’d need to pursue a separate equitable claim through the courts, an entirely different, more difficult process than the automatic protections married spouses receive.
The matrimonial home. This is where the disparity is most stark. Married spouses have an equal right to live in the home regardless of whose name is on title, and neither spouse can sell or mortgage it without the other’s consent. Common-law partners get none of this. If the home is owned solely by one partner, the other has no statutory right of possession at all. Unless both partners are on title, a non-owning common-law partner can be required to leave — though the owner normally has to go to court to get that order rather than simply changing the locks.
Spousal support. Unlike property, this one is available to common-law partners who meet the three-year cohabitation threshold, or the shorter “relationship of some permanence with a shared child” threshold. Meeting the threshold is what makes a claim possible — entitlement and amount are separate questions a court decides on the facts. Courts look at the real substance of the relationship, whether the couple lived as a unit, integrated their finances, presented themselves publicly as a couple, to determine whether support is actually owed and how much.
Other Laws Play by Their Own Rules Too
The inconsistency doesn’t stop at the Family Law Act. Several other Ontario statutes define “spouse” their own way, and none of them line up neatly with each other.
Under the Succession Law Reform Act, the rules for dying without a will mirror the strict, married-only definition, a common-law partner inherits nothing automatically if their partner dies intestate. But the same act’s dependent’s support provisions use the broader definition, meaning a common-law partner who qualifies can still bring a claim against the estate even though they’d get nothing automatically.
Healthcare and incapacity laws use yet another standard entirely, generally recognizing a common-law partner as a spouse for medical decision-making after one year of cohabitation, immediately if they share a child, or immediately if they’ve signed a cohabitation agreement — a considerably lower bar than the three years required for spousal support. That recognition ends, though, once the partners are living separate and apart because the relationship has broken down. Estate administration is more inclusive again. The Estates Act lets a person who was living with the deceased in a conjugal relationship outside marriage apply to administer the estate — though Ontario courts have held that this provision sets out who may apply, not a ranking that places them ahead of the next of kin.
The upshot is that a common-law partner might be fully recognized as a spouse for one purpose and completely excluded for another, all under Ontario law, at the same time.
How Courts Actually Decide Who Qualifies
Since “cohabitation” and “relationship of some permanence” aren’t always obvious from the outside, courts look at the real, lived substance of a relationship rather than just the label. Did the couple share a home, or maintain separate residences for practical reasons while still functioning as a unit? Did they present themselves publicly as spouses? Was there real economic integration, shared accounts, shared expenses, or did they keep things carefully separate? None of these factors decide things alone, but together they paint the picture a court actually relies on.
If Property Rights Don’t Exist Automatically, What Can Common-Law Partners Actually Do?
Two main paths exist. The first, and by far the more reliable one, is a cohabitation agreement, a private contract signed in advance that spells out exactly how property and support will be handled if the relationship ends. The second, for partners without an agreement, is pursuing a claim called unjust enrichment, potentially supported by what’s known as the joint family venture doctrine, a more complex, evidence-heavy process that can result in a genuine share of accumulated wealth, but only after proving specific things about how the relationship actually functioned financially and practically. The Supreme Court of Canada set out this framework in Kerr v. Baranow, 2011 SCC 10, and Ontario courts have applied it to award unmarried partners a share of accumulated wealth. But it requires real litigation, not the entitlement married spouses have from the start.
How Many People This Actually Affects
This isn’t a small or unusual situation. Statistics Canada data shows common-law relationships have grown dramatically across the country over the past four decades, and Canada now has the highest rate of common-law partnerships among G7 nations. Many of those couples are raising children together or hold significant shared assets, all under a legal framework that offers far less built-in protection than marriage does.
Understanding This Gap Before It Becomes a Problem
The honest takeaway here is that assuming common-law status eventually equals marriage-level protection is a mistake that can genuinely cost someone their home or their fair share of a relationship’s financial growth. If you’re in a common-law relationship in the Ottawa area and want to understand where you actually stand, contact LMS Lawyers to discuss your situation.
FAQs
Do common-law couples automatically get half the property if they separate?
No. Property stays with whoever holds legal title, unless there’s a cohabitation agreement or a successful equitable claim proving otherwise.
Can a common-law partner be forced out of a home they don’t own?
Yes. Without joint ownership, a common-law partner has no automatic right to remain in the home, unlike a married spouse.
Is spousal support the same as property rights for common-law partners?
No, they’re completely separate. A common-law partner who has cohabited for three years may be able to claim support, but still has no automatic claim to property.
Does “spouse” mean the same thing in every Ontario law?
No. Property law, estate law, and healthcare law all use different definitions of spouse, so common-law status can apply in one context and not another.
What can common-law couples do to protect themselves?
The most reliable option is a cohabitation agreement signed in advance. Without one, a partner would need to pursue a court claim for unjust enrichment instead.
Summary
Common-law couples in Ontario do not have the same property rights as married couples, and the gap is significant. Property division and matrimonial home protections apply exclusively to married spouses, while spousal support extends to common-law partners who meet specific thresholds, an entirely separate legal question. Beyond family law, other Ontario statutes covering estates and healthcare each define “spouse” differently, meaning common-law status can be recognized in one legal context and ignored in another. Without a cohabitation agreement or a successful equitable claim, a common-law partner’s rights to property built during the relationship remain far more limited, and far more uncertain, than what marriage automatically provides.
This article is intended for general information purposes only and describes Ontario law as of September 2026. It does not constitute legal advice and does not create a lawyer-client relationship between LMS Lawyers and the reader. For advice specific to your situation, please consult a licensed lawyer.
