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What happens to our property if we are neither married nor in a parental union?

Verified 31 July 2026 Law of Quebec and Canada General information, not legal advice

Short answer

In Quebec, de facto spouses who are not in a parental union share nothing automatically: each item of property belongs to the person who bought it. If both contributed to the purchase, they are co-owners in equal shares, unless they agreed on different proportions in writing.

In detail

The rules of the Civil Code of Quebec on the family patrimony do not apply to de facto spouses. JuridiQC states the rule simply: “the owner of the property is generally the person who bought it”.

This is where proof becomes decisive. JuridiQC notes that proof of purchase, such as an invoice, helps identify the owner. Without a document, an item bought by you but used by both can become difficult to claim, and conversely an item you paid half of but that was invoiced in the other's name can be contested.

A cohabitation agreement is the tool designed to avoid this: it lets you set out in advance what belongs to whom and how property will be divided if the relationship ends.

What to document

For each significant item of property: the invoice, the bank or credit card statement showing who paid, and each person's share. If you contributed without being named on the invoice (payments, Interac transfers, mortgage payments), keep every trace with the date and the amount. Years later, that is often all that is left.

Put your facts in writing, free. Writing your version down early, keeping your documents dated and preparing your questions for a lawyer: the tool is there to document, never to advise.

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Official sources

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What this page is not

This is general legal information about the law of Quebec and Canada, dated and sourced. It is not legal advice, not a strategy, and not a prediction about the outcome of a case. In Quebec, only lawyers and notaries may give legal advice (Act respecting the Barreau du Québec, ss. 128 and 133). Laws and amounts change: the official source always prevails over us.