Buying property as a couple in Canada — what the Family Law Act means for you, and the conversation most couples never have

Purchasing a home with a romantic partner is one of the most significant financial decisions two people can make together. It's also one of the most legally complex if the relationship ends. Most couples buying together focus on the mortgage, the neighbourhood, and the offer strategy — and skip the legal conversation that could save them significant financial harm down the road. This article is that conversation.

What happens to the property if the relationship ends?

This is the question almost nobody asks before buying — and the one that becomes extremely expensive to answer after the fact. The answer in Canada depends on three things: whether you are married or common-law, which province you're in, and whose name is on title.

And critically: not being on title does not necessarily mean you have no claim to the property.

Married couples — the matrimonial home rules

In most Canadian provinces, the home you live in as a married couple is classified as the "matrimonial home" or "family residence" — and it receives special treatment under family property legislation.

In Ontario, for example, under the Family Law Act, both spouses have equal rights of possession of the matrimonial home, regardless of whose name is on title. If the marriage breaks down, the matrimonial home is subject to equalization — meaning that even if only one spouse is on title and only one contributed to the purchase, the other spouse has a legal claim to a share of its value. The rules around the "excluded property" (money one spouse brought in from before the relationship or received as a gift or inheritance) are complex and the subject of significant litigation.

In British Columbia, the Family Law Act defines the family home as "family property" regardless of when it was acquired or who is on title. Both spouses have equal entitlement to family property unless there is a written agreement providing otherwise.

Common-law couples — rights vary dramatically by province

This is where Canadian law becomes genuinely complicated. Common-law couples do not have uniform property rights across Canada — the rules vary dramatically by province, and the differences can result in outcomes that feel deeply unjust to the party who didn't know what they were agreeing to.

Title — what it means and what it doesn't

Being on title gives you legal ownership rights. But as the province-by-province breakdown above shows, not being on title doesn't always mean you have no claim — particularly in provinces with strong common-law property rights like BC.

Couples sometimes structure title strategically — one person on title because they have better credit for the mortgage, or because one partner contributed more to the down payment. This can make sense from a financing perspective. But it can create serious complications if the relationship ends, particularly if the person not on title contributed significantly to the down payment, the mortgage payments, or the home's maintenance and improvement over the years.

The cost of getting it wrong

When a relationship breaks down involving jointly owned real estate, and there is no agreement governing how the property will be dealt with, the outcomes can include:

One party refusing to sell. Selling a jointly owned property when one owner doesn't consent requires a court order under the Partition Act (or provincial equivalent). This process can take months to over a year and cost tens of thousands of dollars in legal fees — often more than the equity being disputed.

Both parties stuck in the mortgage together. A mortgage is in both names regardless of relationship status. Both parties remain liable for payments whether or not they're living in the property or whether one party wants to leave. Breaking the mortgage to refinance into one name typically triggers an Interest Rate Differential (IRD) penalty.

Contested down payment contributions. If one party contributed the down payment from personal savings or an inheritance, and the relationship ends, recovering that specific contribution — rather than an equal split of the property — requires proving the contribution was intended as a loan or excluded property. Without documentation, this is very difficult.

What a cohabitation agreement actually does

A cohabitation agreement (for common-law couples) or a marriage agreement (for married couples — also called a prenuptial agreement if signed before marriage) is a legal document that sets out in advance how property will be divided if the relationship ends.

Specifically for home purchases, a well-drafted agreement can: document each party's down payment contribution and specify whether it's returnable; define how the home will be valued and sold if the relationship ends; specify how mortgage payments, maintenance, and improvement costs will be treated; and establish what happens if one party wants to buy out the other.

This is not pessimistic — it is prudent. The conversation is much easier, and much less expensive, before you sign the purchase agreement than during a breakup. A family law lawyer in your province can draft a tailored agreement, typically for $1,500–$4,000 — a fraction of the cost of contested litigation.

Disclaimer: This article is general educational content only — not legal advice. Canadian family law is governed by provincial legislation and varies significantly between provinces. The information here is a general overview and may not reflect recent legislative changes. Always consult a qualified family law lawyer in your province before making real estate decisions with a partner. Turning Keys is operated by Wise Victoria Mortgages (BCFSA Lic. #MB600614) and Nick Wise Personal Real Estate Corporation.