Prenuptial Agreements (Marriage Contract) in Quebec: Protecting Your Future Before Saying “I Do”
Prenuptial Agreements (Marriage Contract) in Quebec: Protecting Your Future Before Saying “I Do”

Why Discussing a Prenup Shows Responsibility
In Quebec, marriage is both a personal and a legal union. Alongside emotion and commitment, marriage creates financial and legal obligations that the law automatically applies once two people say “I do.” Yet, few couples discuss what those obligations really mean.
Talking about a prenuptial agreement (or marriage contract) is not a sign of mistrust, it is a sign of maturity and transparency. It allows couples to define how they wish to manage property, protect assets, and plan for the future, no matter what happens.
At Guzun & Associates Lawyers, our family lawyers in Montreal help couples understand their rights and responsibilities under Quebec law. We draft customized prenuptial agreements that reflect fairness, security, and mutual respect not fear or control.
What Is a Prenuptial Agreement in Quebec?
Unlike other provinces in Canada, Quebec follows a civil law system. Here, the concept of a “prenuptial agreement” exists under the name “marriage contract” (contrat de mariage) and is governed by the Civil Code of Quebec (articles 431–440).
By default, couples in Quebec are subject to the partnership of acquests regime meaning that most property acquired during the marriage is divided equally if the couple separates.
A marriage contract allows future spouses to replace this default regime with another, such as separation as to property, or to specify unique arrangements for managing their finances.
Essentially, a prenuptial agreement gives couples control over their own financial destiny instead of relying on the default legal formula.
Legal Requirements Under Quebec’s Civil Code
For a prenuptial agreement in Quebec to be valid and enforceable, it must meet specific legal conditions under the Civil Code:
- Written form: It must be a formal, written document.
- Signed before marriage: The contract takes effect only once the marriage occurs, but it must be signed before the wedding ceremony.
- Voluntary consent: Both parties must sign freely and without any pressure or coercion.
- Full disclosure: Each partner must provide an honest and complete list of assets and debts. If one hides financial information, the contract can later be challenged in court.
- Notarization: The document must be signed before a notary in Quebec and registered to be legally recognized.
If any of these requirements are not met, the contract can be declared invalid or unenforceable which is why having a marriage contract lawyer in Montreal is essential.
What Can Be Included and Excluded
You Can Include:
- Ownership and management of property, real estate, or investments;
- Division of future assets and savings;
- Responsibility for personal and joint debts;
- Rules for running or protecting a family business;
- Provisions for spousal support or financial maintenance (although the court may review them for fairness);
- Inheritance or succession clauses to clarify what happens upon death.
You Cannot Include:
- Decisions about child custody or child support these matters are always decided by the court in the child’s best interest;
- Any clause that contradicts public order, equality, or fundamental rights;
- Punitive or moral conditions, such as “penalties” for infidelity.

The Role of Family Patrimony in Quebec
Even with a marriage contract, certain assets remain subject to family patrimony (patrimoine familial), a concept unique to Quebec’s legal system.
Family patrimony includes:
- The family residence and its furniture;
- Vehicles used for family purposes;
- Registered pension and retirement savings plans.
These assets are divided equally between spouses if the marriage ends, regardless of what is written in the contract. Understanding this rule is essential to avoid unpleasant surprises later.
A knowledgeable family lawyer in Montreal can explain how your marriage contract interacts with family patrimony and ensure that your intentions align with the law.
Common Myths About Prenuptial Agreements
“Prenups are only for wealthy people.”
False. Any couple who owns property, has savings, or runs a business can benefit from a marriage contract. It helps prevent disputes, no matter the size of the estate.
“Signing a prenup means expecting divorce.”
Not at all. A marriage contract is about clarity, not pessimism. Just as people buy insurance without expecting an accident, couples sign prenups to ensure stability and fairness.
“We can just write it ourselves.”
While online templates exist, they often fail to meet Quebec’s strict legal requirements. Without notarization and legal review, such documents may not hold up in court.
“A prenup only protects one person.”
When properly drafted, a marriage contract protects both spouses by clearly defining expectations and preventing future conflict.
Why You Should Work With a Lawyer
The Civil Code of Quebec gives couples freedom to define their financial relationship, but that freedom comes with complexity. A family lawyer in Montreal ensures your contract is both fair and enforceable.
At Guzun & Associates, our lawyers:
- Explain the different matrimonial regimes and their long-term consequences;
- Negotiate and draft the terms of your agreement to ensure your interests are protected.
- Collaborate with a notary who will formalize your agreement into a legally binding marriage contract.
- Advise on how to protect assets, businesses, or inheritances.
A simple mistake — such as failing to disclose an asset or misunderstanding family patrimony can invalidate parts of your agreement. Legal advice at the drafting stage prevents those risks entirely.
How Guzun & Associates Helps Couples
With over 20 years of combined experience, Guzun & Associates Lawyers provides personalized legal guidance for couples preparing for marriage in Quebec.
Our team combines professionalism, empathy, and discretion to help partners define financial boundaries that strengthen, not weaken, their relationship.
We ensure that every prenuptial agreement we draft is:
- Clear and legally binding;
- Balanced and fair to both parties;
- Consistent with your life goals and family circumstances.
Book a Consultation to Discuss Your Marriage Contract Today
Whether you are recently engaged or already planning your wedding, it’s never too early to think about your legal and financial future.
📞 Call us: +1 (514) 842-7414
📧 Email: office@avocatguzun.com
📍 Visit: 105-1 rue McGill, Suite 15B, Montreal, Quebec
A well-drafted prenuptial agreement in Quebec offers clarity, peace of mind, and lasting protection.
At Guzun & Associates, our experienced marriage contract lawyers in Montreal will help you secure your future before saying “I do.”
