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№ 77 Family Law

Can a Prenup Protect an Inheritance or Gift in British Columbia?

See how a British Columbia agreement can deal with an inheritance or gift, what the court can set aside, and what to confirm with a lawyer first.

Family Law4 min readTSLBy the Treadstone Law Team · British ColumbiaUpdated November 13, 2026
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Key takeaways
  • Spouses can agree to include or exclude items from family property, and an inheritance is given as an example of something that can be addressed.
  • Default property rules apply unless an agreement or order provides otherwise.
  • A properly signed and witnessed agreement can still be set aside or replaced on limited grounds.

If you expect an inheritance or a family gift, you may want to be sure it stays with you if your relationship ends. In British Columbia, a written agreement between spouses can address this, working alongside the default rules in the Family Law Act.

This article explains what an agreement can say about an inheritance or gift, how to make it more reliable, and where the court can step in. How the default rules treat a specific inheritance or gift depends on the facts, so that is worth confirming with a lawyer.

This article covers the law of British Columbia.

How the default rules and an agreement fit together

Spouses are presumptively entitled to family property and responsible for family debt, and each has a right on separation to an undivided half interest in family property as a tenant in common. This is expressly subject to an agreement or order that provides otherwise.

Spouses may also make agreements about dividing property and debt despite the usual Part 5 rules, subject to the court's power to set those agreements aside. In practice, the default rules are the starting point, and a valid agreement can change the result.

An agreement can remove that uncertainty by stating clearly how the asset is to be treated.

What an agreement can say about an inheritance or gift

If your goal is protection, spouses may agree under s. 92 to exclude as family property or family debt items that would otherwise be included, such as a business or a home. If you are the partner of someone expecting money, you may instead want certain items included, which the Act also permits.

It helps to describe the asset clearly, and to say what happens if it is mixed with other property, such as being used to buy a home. These drafting details are best settled with a lawyer.

Making the agreement reliable

A written agreement is one in writing that is signed by all parties. The court's set-aside regime applies to a written property agreement with each spouse's signature witnessed by at least one other person, and the same person may witness both signatures. The Act does not require notarization, a commissioner or a lawyer's signature.

If the agreement is signed but not witnessed, the court may still apply the set-aside rules if satisfied it is appropriate in all the circumstances. The Province's guidance advises getting legal advice before any final decisions about division of property and debt.

Limits: when a court can change the agreement

The Supreme Court may set aside or replace all or part of a witnessed property agreement only if certain circumstances existed when it was made. They include a spouse failing to disclose significant property or debts, taking improper advantage of the other's vulnerability, or not understanding the nature or consequences of the agreement. Other circumstances that make a contract voidable at common law also count.

The court may decline to act if it would not replace the agreement with an order substantially different from its terms. It may also set aside or replace an agreement that is significantly unfair, considering the time since it was made, the spouses' intention to achieve certainty, and the degree to which they relied on its terms.

If you expect a gift or inheritance, disclosing that expectation to your partner before signing can reduce the risk of a later argument about non-disclosure.

What to do next

If you are not married, the property division rules apply only once you have lived in a marriage-like relationship for at least two years, and a written agreement can opt out of the default rules.

Frequently asked questions

Does an inheritance count as family property?

That depends on the facts and is worth confirming with a lawyer. What the Act does allow is for spouses to agree to include as family property an item that would not otherwise be included, such as an inheritance, or to exclude items that would otherwise be included.

Can a court ignore my agreement about a gift?

In limited situations, yes. The court may set aside or replace all or part of an agreement for reasons such as non-disclosure, or if it is significantly unfair.

Do we need to be married to have an agreement?

No. The same rules apply to spouses whether married or not, but the property division rules apply to unmarried couples only after they have lived in a marriage-like relationship for at least two years.

Does the agreement need to be notarized?

No. The Act does not require notarization, a commissioner or a lawyer's signature; the requirement is a signed written agreement with each signature witnessed by at least one other person.

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. British Columbia 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 British Columbia. Reach us at 1-844-900-1070 or send our Team a message.

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