Does a Prenup Need to Be Witnessed or Notarized in British Columbia?

This answer covers the law of British Columbia.

A prenup does not need to be notarized, but for the court's property set-aside rules to apply, each spouse's signature must be witnessed by at least one other person. The agreement must be in writing and signed by both spouses, and the same person can witness both signatures. The Act does not require notarization, a commissioner, a lawyer's signature or independent legal advice.

Spousal support terms follow the same witnessing rule, and the court cannot make a support order if a witnessed agreement exists unless it is set aside. An unwitnessed signed agreement is not automatically void, because the court may still apply these rules if appropriate, but it is less secure.

Skipping a lawyer or full disclosure matters in practice because a court may set aside an agreement if a spouse failed to disclose significant property or debts, took improper advantage of the other's vulnerability, or did not understand it. How skipping advice plays out is a matter of court practice, not a signing rule. The Province advises getting legal advice before making final decisions about property and debt. Unmarried partners become spouses for property purposes only after 2 continuous years of living together in a marriage-like relationship.