Quebec: New Parental Union Patrimony Law Takes Effect June 2025

• Quebec's new "parental union" framework, effective June 30, 2025, automatically creates a parental union patrimony for certain de facto spouses.
• A parental union forms when de facto spouses become parents of the same child, or existing parents re-become de facto spouses, with specific limitations.
• The parental union patrimony includes family residences, household furnishings, and family vehicles, but excludes retirement plans and gifts/inheritances.
• Spouses can modify or opt out of the patrimony, but agreements to exclude property or opt out entirely must be executed by a notarial act to be valid.
• Legal professionals must now determine the precise formation date of parental unions and update advice on cohabitation, estate planning, and real estate transactions.

Crucially, any agreement specifically aimed at excluding property from the patrimony must be executed by a notarial act "en minute"; failure to adhere to this formal requirement renders such an agreement absolutely null.

Quebec is introducing a new legal framework, effective June 30, 2025, specifically designed for certain de facto spouses, termed "parental union." This regime, while not constituting a marriage or civil union, automatically triggers specific legal consequences, most notably the establishment of a parental union patrimony. This reform significantly impacts various areas of legal practice, including cohabitation agreements, estate planning, real estate transactions, and separation proceedings.

A parental union is formed under Article 521.20 C.C.Q. when de facto spouses become the parents of the same child. Alternatively, it can also be established if individuals who are already parents of a common child subsequently become, or re-establish themselves as, de facto spouses. However, certain restrictions apply: a new parental union cannot be formed if one of the spouses is already in a marriage, civil union, or another parental union, unless that prior union has been dissolved. Furthermore, this type of union is prohibited between individuals who are ascendants, descendants, or siblings relative to each other.

The application of this new regime varies based on timing. For spouses who become parents of the same child on or after June 30, 2025, the parental union and its associated patrimony apply automatically. Conversely, couples who were already parents of a common child before this date have the option to choose whether to be subject to these new provisions. This distinction means that legal practitioners must not only verify if the conditions for forming a parental union are met but also precisely ascertain the date on which the union was established.

A key automatic effect of a parental union is the creation of a parental union patrimony. Similar to the existing family patrimony, this new patrimony is established irrespective of which spouse holds legal title to the property it comprises. For instance, a residence owned solely by one spouse may still be included. However, the scope of the parental union patrimony is more limited than that of the family patrimony.

Under Article 521.30 C.C.Q., the parental union patrimony specifically includes family residences or rights granting their use, movable property used for furnishing or decorating these residences for household purposes, and motor vehicles utilized for family travel. Notably, it excludes certain assets that are part of the family patrimony, such as rights accrued under a retirement plan or earnings registered under the Québec Pension Plan. Additionally, property received by one spouse through succession or gift, whether before or during the union, is excluded, as is property belonging to a minor spouse until they reach the age of majority.

Upon liquidation of the patrimony, specific deductions are permitted. Article 521.36 C.C.Q. allows for the deduction of the net value of property that belonged to one spouse at the time the parental union was formed. Furthermore, any increase in value attributable to that initial net value during the course of the union can also be deducted from the property's net value upon partition, following the terms outlined in the Civil Code.

The legislature has granted spouses considerable autonomy concerning their parental union patrimony, as detailed in Article 521.31 C.C.Q. This allows them to modify its composition, either by incorporating additional property or by excluding assets that would typically form part of it. However, a critical requirement is imposed: any agreement specifically aimed at excluding property from the patrimony must be executed by a notarial act "en minute." Failure to adhere to this formal requirement renders such an agreement absolutely null.

Beyond modifying the patrimony's composition, spouses also have the option to completely opt out of the provisions related to the parental union patrimony. This flexibility, while significant, is similarly subject to strict formal requirements to ensure legal validity. Consequently, this new legal framework necessitates a thorough review and potential update of cohabitation agreements, estate planning strategies, and certain real estate transactions involving de facto spouses in Quebec.

This reform underscores the increased need for collaboration between legal professionals, particularly lawyers and notaries. Ensuring compliance with the new requirements, especially regarding the mandatory notarial acts for certain modifications or exclusions, is paramount. Such cooperation is essential to guarantee that any arrangements made by de facto spouses concerning their assets are legally sound, enforceable, and align with their intentions.

The introduction of the parental union framework marks a substantial evolution in Quebec family law, establishing automatic legal consequences for de facto spouses who are parents. This new regime demands a comprehensive re-evaluation of current legal advice and practices across various domains, including property rights, inheritance, and the division of assets upon separation.

Legal practitioners are now tasked with meticulously assessing not only whether the conditions for a parental union have been met but also with pinpointing the precise date of its formation. This level of precision is crucial for the correct application of the new rules, particularly given the automatic creation of the patrimony and the differing applicability for unions formed before or after June 30, 2025.

The automatic nature of the parental union patrimony, coupled with the stringent formal requirements for modifying or opting out of it, means that proactive and informed legal counsel is more vital than ever. Failure to properly address these new provisions could lead to unintended and potentially adverse consequences for de facto spouses, making expert legal guidance indispensable in navigating this complex new landscape.

Lawyers and compliance officers in Quebec must update their advice on cohabitation agreements, estate planning, and real estate transactions for de facto spouses, considering the new parental union patrimony and its automatic legal effects. They need to ascertain the precise formation date of such unions and ensure that agreements modifying or excluding the patrimony are executed by notarial act to avoid nullity.

Source: Original reporting based on legal analysis.