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Domestic Contract in Alberta: Which Marriage Agreements Count?

See which agreements Alberta recognizes instead of a domestic contract: prenups, postnups and cohabitation agreements, and the statute behind each.

Family Law4 min readTSLBy the Treadstone Law Team · AlbertaUpdated November 6, 2026
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Key takeaways
  • Alberta property agreements between spouses or adult interdependent partners are governed by sections 37 and 38 of the Family Property Act.
  • Spousal support agreements fall under a different statute, the Family Law Act, section 62.
  • Agreements cannot bind a court on parenting, and child support is set by the guidelines rather than by private agreement alone.

If you have searched for a domestic contract, you have probably landed on material from another province. The phrase is a handy umbrella label for written agreements between couples, but it is not how Alberta usually organizes the topic.

In Alberta, different kinds of agreements sit under different statutes. This article explains which agreements are recognized, which law each one comes from, and what each can and cannot do.

This article covers the law of Alberta.

Why the label looks different in Alberta

A domestic contract is a general term for a written agreement between people in a couple, such as a prenup, a cohabitation agreement or a separation agreement. When you look for those agreements in Alberta, you find them spread across more than one law, depending on whether the agreement deals with property, spousal support, children or all three.

So the useful question is not whether Alberta has a domestic contract. It is which topic your agreement covers and which statute controls that topic.

The agreement types Alberta recognizes

AgreementWhat it can coverWhere the rules sit
Prenuptial agreementProperty on separation or dissolution of the marriageFamily Property Act, ss. 37-38
Postnuptial agreementProperty, made after the weddingFamily Property Act, ss. 37-38
Property agreement between spouses or adult interdependent partnersHow property is distributed on separation or on becoming former adult interdependent partnersFamily Property Act, ss. 37-38
Spousal support agreement or releaseSupport paid, or released, between spouses or partnersFamily Law Act, s. 62
Child support agreementChild support, but it does not stop an application for an orderFamily Law Act, s. 53

The Family Property Act applies to married spouses and to adult interdependent partners, so the same property rules cover both kinds of couples. How these rules apply to other kinds of relationships depends on your situation, so it is worth confirming with a lawyer.

What makes a property agreement enforceable

A written agreement that meets section 38 replaces the default division rules for the property it covers. To meet section 38, each party must acknowledge in writing, apart from the other party, that they understand the nature and effect of the agreement, understand their possible future claims and intend to give them up as the agreement provides, and are signing freely and voluntarily.

Each acknowledgment must be made before a lawyer other than the lawyer acting for the other party. This is the Alberta form of independent legal advice for property agreements.

If an agreement does not meet section 38, it does not displace the default rules, and a court can still consider its terms as one factor. For property acquired during the marriage, the default is that the Court distributes it equally unless that would not be just and equitable. Exempt property, such as gifts from third parties, inheritances and property acquired before the marriage, is excluded at its market value, although the Court distributes any increase in value of that property in a just and equitable manner.

Support and children are treated differently

Spouses or adult interdependent partners may agree in writing to pay support or to release each other from it. A court may still depart from the agreement if it is inequitable and a listed circumstance exists, such as the challenging spouse having signed without independent legal advice. A support agreement also cannot vary an existing support order.

If a couple divorces, the Divorce Act lets a court make a spousal support order and requires it to take into account any agreement relating to support. A waiver is weighed against the objectives the Act sets for spousal support.

Children's matters are more limited. A child support agreement does not prevent anyone from applying for a child support order, and an order ends the earlier agreement. On parenting, the court looks only at the best interests of the child, so parents cannot bind the court in advance.

The independent legal advice ground for support agreements and the lawyer-witnessed acknowledgment for property agreements are separate tests, so one does not automatically satisfy the other.

What to do next

Frequently asked questions

Does Alberta have something called a domestic contract?

Alberta law does not generally use that single label. Property agreements are dealt with under the Family Property Act and support agreements under the Family Law Act.

Can a couple make an agreement after they are already married?

Yes. A postnuptial agreement is recognized through the same provision as a prenup, and it must meet the same section 38 formalities.

Can an agreement decide parenting time in advance?

Not in a way that binds the court. The court considers only the best interests of the child when making parenting decisions.

What happens if my agreement does not meet section 38?

It does not replace the default rules, so those rules can apply. The court may still treat the agreement's terms as one factor.

Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Alberta laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a lawyer who practises in Alberta. Reach us at 1-844-900-1070 or send our Team a message.

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