Child Custody Across Borders: Vietnam and International Law

The 1980 Hague Convention provides a streamlined return mechanism for children wrongfully removed or retained across borders between contracting states. A parent in a contracting state whose child has been taken to another contracting state can typically obtain a return order through expedited procedures, often within months, with the receiving state's courts focused narrowly on the return question rather than the merits of underlying custody.

Vietnam is not a contracting state. Neither is the Hague Convention as such recognised or applied by Vietnamese courts. A parent whose child has been brought to Vietnam without consent cannot invoke Hague return procedures; they must navigate Vietnamese family-law procedure on the merits. Conversely, a Vietnamese court order awarding custody to a Vietnamese parent does not benefit from Hague-style automatic recognition abroad — the foreign court will apply its own recognition principles, which vary by jurisdiction.

The practical consequences are considerable. Parents with concerns about possible abduction need to use prevention-focused tools — non-removal orders before the fact, careful travel-consent protocols, advance custody documentation — rather than relying on post-hoc Hague return. Parents whose children have been brought to or taken from Vietnam need merits-based litigation rather than streamlined return procedures. International planning needs to be more proactive because reactive remedies are weaker.

Vietnam's accession to the Hague Convention has been discussed periodically and remains a subject of legal-policy interest. As of 2026, no accession has occurred, and there is no firm timeline for one.

When parents separate across borders, the threshold question is which country's courts have jurisdiction over custody. Multiple courts may have jurisdiction simultaneously, and the choice of forum can affect every subsequent issue.

Vietnamese jurisdiction under the Civil Procedure Code 2015 attaches when: at least one parent or the child is a Vietnamese citizen; or the child is habitually resident in Vietnam at the time of filing; or both parents agree to Vietnamese jurisdiction. Habitual residence is a fact-based concept — it considers where the child has been living, schooling, receiving healthcare, and forming social ties. A short visit to Vietnam does not establish habitual residence; a year of resident schooling typically does.

Foreign jurisdiction typically attaches under similar principles in the foreign country: nationality, habitual residence, or consent. Where Vietnamese and foreign jurisdiction overlap, the result is a choice-of-forum decision.

The choice considerations are: where the child principally resides and what court is best placed to assess best interests; where each parent resides and the practical access to the court; whether one country's substantive law is more favourable on key issues (custody standards, relocation rules, support calculations); where any order will need to be enforced; and timing — Vietnamese proceedings can be fast or slow depending on the matter and the court, and the foreign proceedings have their own pace.

I work closely with foreign family-law counsel on this analysis. The right answer is rarely intuitive; the choice has long-term consequences and is one of the few decisions in international custody where outcomes can differ markedly depending on which court hears the case.

Article 131 of the Civil Procedure Code 2015 (interim and emergency measures in civil proceedings — read alongside the family-specific provisions of the Law on Marriage and Family) provides for protective orders in family matters, including non-removal orders preventing children from leaving Vietnam during proceedings. This is the single most important protective tool in Vietnamese cross-border custody practice.

When the order is appropriate: there is credible evidence that one parent may unilaterally remove the child from Vietnam, the removal would compromise the child's welfare or the other parent's ability to maintain meaningful contact, and the proceedings to determine custody on the merits are pending or about to be filed. The threshold is not formalistic — courts respond to specific facts (prior threats, recent passport applications, sudden booking of international flights, sale of Vietnamese property indicating departure preparations).

Procedure: the order can be applied for at the time of filing the divorce or custody petition or as a separate emergency measure. The application sets out the factual basis for concern, the proposed terms (typically: child to remain in Vietnam pending order; passports surrendered to court or counsel; airport authorities notified; specific exceptions for medical or family emergencies subject to court approval). Courts typically consider applications quickly when supported by clear evidence; ex parte issuance is possible in genuine emergencies.

Enforcement: the non-removal order is implemented by notification to immigration authorities at all departure points. Children whose names appear on the no-fly list (effectively, the implementing notification) are prevented from leaving Vietnam regardless of which parent is travelling. Passport surrender to a neutral party (the court, counsel, or a designated notary) reinforces the practical effect. Violation is a criminal offence (Article 380 of the Criminal Code, obstruction of judicial decisions).

Limitations: the order operates within Vietnam. If the child has already left Vietnam, the non-removal order has no extraterritorial effect; recovery requires foreign-law procedures (which, again, do not include Hague return). This is why timing matters — the non-removal order is most useful when applied for early.

International families benefit substantially from comprehensive parenting plans — both as a tool for cooperation while the relationship is intact (in case of accidents or unforeseen events) and as a framework if separation occurs. A good plan addresses everything that might be contested later, when emotion makes negotiation harder.

Core elements: primary residence designation; school choice and education-related decision making; medical care decision making; religious and cultural upbringing; international travel protocols (see below); communication during the other parent's time; holiday and special-occasion schedules; relocation protocols (notice periods, consent requirements, fallback procedures); and dispute-resolution procedures for plan modifications.

International travel protocols deserve particular attention. The standard structure: each parent provides advance written consent for the other parent's international travel with the child; specific notice period (often 30-60 days for non-routine travel); itinerary disclosure (flights, accommodations, return date); emergency contact protocols; return-trip booking before departure (a confirmed return ticket is one of the simplest abduction-prevention tools); and a specific protocol for any extended stay (longer than X weeks requires additional consent or court order). For travel to non-Hague jurisdictions, parents may agree on additional protections (escrow of passports, financial deposits returned on confirmed return, etc.).

Communication during the other parent's time is increasingly important for international families because physical access is intermittent. Specifying frequency (typically daily video call or otherwise as agreed), reasonable times accommodating time zones, the child's age-appropriate access to communication tools, and a no-disparagement provision are all helpful.

Documenting the plan is best done either as part of a divorce judgment (so it has the force of court order) or as a notarised standalone agreement (which can be enforced as a contract and is also admissible to support a later application for court orders).

A Vietnamese custody order is automatically valid throughout Vietnam. Its recognition abroad is a separate question and depends on the law of the country where recognition is sought.

Most Western countries apply general principles for recognition of foreign family-law orders: the court that issued the order had appropriate jurisdiction (typically habitual residence of the child), the parties had appropriate notice and opportunity to be heard, and the order does not violate the home country's public policy. Where these elements are present, recognition is generally available — but typically requires a separate proceeding in the home country, not automatic recognition.

Common challenges to recognition abroad: arguments that Vietnamese jurisdiction was inappropriate (the child was actually habitually resident elsewhere); arguments that one parent did not have adequate notice or opportunity (particularly where the parent abroad did not appear in the Vietnamese proceedings); arguments that the substance violates the home country's public policy (rare but possible where Vietnamese custody assessment differs markedly from home-country standards).

Strategies for orders that need to be recognised abroad: ensure both parents have meaningful opportunity to be heard in the Vietnamese proceedings (not just nominal service — actual participation, ideally with foreign counsel involvement); structure the order to be expressed in concepts that translate to the foreign forum (joint legal custody / primary residence rather than untranslated Vietnamese terminology); consider parallel consent proceedings in both countries (a Vietnamese order plus a foreign court's adoption of the same terms creates a dual-jurisdiction enforcement basis); document the welfare assessment thoroughly in the Vietnamese record so the substance is visible to a later foreign reviewing court.

I work routinely with foreign family-law counsel on these issues. For high-stakes cases, parallel proceedings in Vietnam and abroad — coordinated to produce consistent orders — are often the most secure approach.

Child support is awarded in Vietnamese custody orders based on the paying parent's income, the child's needs, and the cost of living in the relevant location. There is no strict formula. For international families, two scenarios commonly arise: the paying parent earns abroad, or the receiving parent and child move abroad after the order.

Paying parent abroad: Vietnamese courts can set support based on the paying parent's foreign income (with appropriate evidence — tax records, employer letters, bank records). Enforcement abroad is the practical challenge. Vietnam has bilateral judicial assistance treaties with several countries that facilitate recognition of support orders; for countries without such treaties, enforcement requires a separate proceeding in the paying parent's country to recognise and enforce the Vietnamese order, on principles similar to recognition of any foreign order. In some cases, a parallel support order in the paying parent's home country (issued at the same time as the Vietnamese custody order, or shortly after) provides more direct enforceability.

Receiving parent and child abroad: if the order is in Vietnamese dong, currency conversion and remittance need to be planned (foreign-exchange-control compliance for outbound transfers). The order can usually be modified to provide for direct payment in the receiving currency to a foreign bank account.

Modification over time: child support is modifiable as circumstances change. A parent moving abroad, a substantial change in income, or a substantial change in the child's needs can support modification. The Vietnamese court typically retains modification jurisdiction so long as it had original jurisdiction; foreign courts may also assert modification jurisdiction once the child has habitual residence in their country.

Practical advice: include in the Vietnamese order a clear payment mechanism (account, currency, due date), an annual review mechanism for cost-of-living adjustments, and an arbitration or mediation clause for support modifications. This reduces the need for return-to-court for routine adjustments.

Move before there is a problem. Most of the foreign-parent custody outcomes that go badly involve one parent who waited too long to take protective steps. Documentation, residence registration, school enrolment in the parent's preferred country, parenting plan execution — these are all done more easily before crisis than during. Couples in international marriages should treat parenting-plan documentation as a basic step alongside other estate-planning measures.

Coordinate with foreign counsel early. Cross-border custody matters almost always benefit from coordinated foreign and Vietnamese counsel. The foreign counsel handles home-jurisdiction proceedings, recognition strategy, and enforcement of any foreign orders; Vietnamese counsel handles the Vietnamese proceedings and Vietnamese-asset elements. The two should communicate from day one.

Mediation is often the right answer. Contested custody litigation across borders is expensive, slow, and rarely produces an outcome that either party is happy with. Mediation — in person or virtual, with appropriate professional support — frequently produces parenting plans that work for everyone. Where mediation is not possible, structured negotiation through counsel often achieves the same result more efficiently than full contested proceedings.

Be realistic about timelines. Cross-border custody matters take time. A Vietnamese contested custody case typically takes 9-18 months at first instance. Coordination with parallel foreign proceedings adds to this. The focus throughout should be on stability for the child during the process — interim arrangements that work, not just the final order.

Above all, the child. Every decision is more easily made — and better made — when the welfare and stability of the child is the genuine starting point. Vietnamese courts apply this standard rigorously. International families who approach disputes with the same orientation tend to reach better outcomes, in court and out of it.