Prenups are no strangers to Vietnamese law — Articles 47 through 50 of the 2014 Law on Marriage and Family recognize a spousal property regime by agreement. But “having an agreement” and “having an agreement that survives divorce” are two different things. Many self-drafted prenups are declared void by courts for missing one of the five validity conditions below.
Five conditions for an enforceable prenup
One, mandatory form: notarized or certified writing. This is the hardest condition. Oral agreements, or signed private papers without notarization/certification, are void for defective form. Since 01/7/2025, notarization follows the 2024 Law on Notarization; agreements establishing the spousal property regime belong to the must-notarize group. Where one party is abroad, notarization can be done at a Vietnamese notarial practice when both are present, or through a valid authorization procedure.
Two, capacity and voluntariness. Both parties must have full civil act capacity and act entirely voluntarily. An agreement signed under pressure — one party threatening to cancel the wedding unless the other signs — may be voided for lack of voluntariness.
Three, content lawful and moral. The agreement may not evade child support duties, parental care duties, or dissipate assets to dodge debts. Article 48 frames permitted content: designation of marital and separate assets; each party’s rights and obligations; conditions, procedures, and principles for division when the regime ends.
Four, timing. The agreement may be made before or after marriage. A pre-marriage agreement takes effect from the marriage registration date. A point many get wrong: signing a prenup without registering the marriage means the agreement never takes effect.
Five, no ground for annulment. Courts may declare the agreement wholly or partly void when the above conditions are breached; the statutory regime applies to the voided part.
Amending a prenup after the wedding
Article 49 lets spouses amend the agreement during the marriage — and amendments must also be in notarized or certified writing. The typical case: after marrying, the couple buys significant real estate and wants it designated as one party’s separate asset. Without a notarized amendment, the new asset is marital by default.
Four mistakes that kill a prenup in court
Mistake one: only a foreign-language version, no certified Vietnamese translation. Vietnamese courts try cases in Vietnamese; an untranslated document is not accepted as evidence.
Mistake two: notarized abroad but never consular-legalized. A foreign notarized document needs consular legalization for use in Vietnam, unless exempted by treaty.
Mistake three: overreaching content — for example, a clause stripping all assets from an adulterous spouse. Penalty clauses for breaching spousal duties risk being judged contrary to social morals or the equality principle, voiding that part.
Mistake four: signing after disputes have erupted. A prenup signed when the marriage is already cracking, with one party preparing for divorce, is easily attacked as involuntary or as asset dissipation.
Frequently asked questions
Is a prenup signed abroad usable in a Vietnam divorce?
Yes, if it meets formal conditions (notarized/certified under the law of the place of signing), carries consular legalization and certified Vietnamese translation, and its content does not offend the fundamental principles of Vietnamese law. The court examines the document’s legality before applying it.
Without a prenup, which regime applies?
The statutory regime in Chapter III of the Law on Marriage and Family: marital property divided under Article 59 principles, separate property stays with each owner. This default covers every couple without a separate agreement.
Can a prenup exclude child support duties?
No. Child support is a statutory duty that cannot be contracted away. Any prenup clause aimed at evading support will be declared void by the court.
We want to amend the prenup but the other side disagrees?
Amendment requires both parties’ consensus plus notarized/certified form. One party cannot amend unilaterally. Without agreement, the existing regime stays in force until divorce or a new agreement.
Drafting spousal property agreements
FLAT Law Firm drafts and reviews property-regime agreements for internationally connected couples: satisfying all five validity conditions, aligning content with both Vietnamese and relevant foreign law, and notarizing under the new rules. Contact us before signing anything.
This article has been quality-reviewed by the FLAW AI Legal Council