Vietnam Joins the Apostille Convention: What Changes for International Documents on 11 September 2026?

One of the most significant expansions in international document circulation in recent years is approaching. On 31 December 2025, Vietnam officially acceded to the Hague Convention of 5 October 1961 Abolishing the Requirement of Legalisation for Foreign Public Documents (the Apostille Convention). With this accession, the number of contracting parties rose to 129, and the Convention will enter into force for Vietnam on 11 September 2026. For anyone exchanging documents between Turkey and Vietnam for education, employment or trade purposes, this date is a turning point. In this post, we take a step-by-step look at what the new era brings, the pitfalls of the transition period, and how the translation–legalization chain should be structured.

What Is Changing?

Until now, official documents sent to or received from Vietnam required multi-stage consular legalization. In the new era, a single apostille certificate issued by the competent authority of the country where the document was drawn up will replace the multi-layered consular process that required repeated approvals in both the issuing and the receiving country. Fewer procedural steps mean lower notary, consular, translation and courier costs. Once the Convention enters into force, public documents originating from Vietnam will be directly accepted in other member states with an apostille certificate; likewise, foreign documents bearing the apostille of another member state will be recognized in Vietnam.

Preparations on the Vietnamese side are also moving quickly. The Consular Department in Hanoi under the Ministry of Foreign Affairs and the Department of External Relations in Ho Chi Minh City have been designated as the competent authorities for issuing apostilles. An implementation plan signed on 25 February 2026 calls for preparations — including public information campaigns, document verification, and the online submission of apostille applications through the national public service portal — to be completed by 11 September 2026. In other words, Vietnam is preparing for the system not only legally but also in terms of technical infrastructure, which strengthens the expectation that procedures will begin relatively smoothly from the entry-into-force date.

What Exactly Does an Apostille Certify?

Before moving on to the new era, it is worth clarifying the concept. An apostille is an international certification procedure applied under the Hague Convention of 5 October 1961, which allows a document to gain official validity in another country after being certified by the competent authorities in the country where it was issued. An important detail: the apostille does not certify the content of the document; it certifies that the signature, seal or stamp on the document is genuine. In other words, an apostilled diploma does not confirm the accuracy of your grades, but the authenticity of the signature and seal of the authority that issued the diploma.

In Turkey, apostille certificates are issued not by translation agencies but by the authorized official bodies: provincial governor's offices (valilik) and district governor's offices (kaymakamlık) are competent for administrative documents, while judicial authorities are competent for judicial documents. The role of a translation agency lies in translating the document into the target language to sworn translation standards and planning the legalization chain in the correct order. Knowing this division of responsibilities saves you time when asking, "Where do I get the apostille?"

Caution During the Transition Period: An Early Apostille May Be Rejected

The most critical point is timing. Since the Convention will enter into force for Vietnam on 11 September 2026, until that date the use of foreign documents in Vietnam is, barring exceptional circumstances, only possible through consular legalization. The most confusing aspect of the transition period is that even though apostilles can be obtained quickly in third countries, apostilled documents that appear procedurally correct may be refused because Vietnam's accession has not yet taken effect. Before the entry-into-force date, the existing legalization route remains valid; the apostille system will only begin to replace consular legalization for public documents from member states after that date. In other words, for documents to be submitted before September, the old-style legalization chain is still mandatory.

To give a concrete example from other countries: in the United Kingdom, documents destined for Vietnam have until now required two-stage legalization — first an FCDO apostille, then certification by the Vietnamese Embassy in London. The logic is the same for documents sent from Turkey: until the entry-into-force date, the chain of notarization followed by approval from the Ministry of Foreign Affairs (Dışişleri Bakanlığı) and certification by the Vietnamese diplomatic mission continues to apply. In addition, contracting states have a six-month period to object to Vietnam's accession; no objection has been recorded to date. Considering past cases in which Turkey did not object to similar accessions, the process is expected to proceed as planned; even so, it is best to verify the current status before applying.

What It Means for Individuals and Companies in Turkey

Turkey became a party to the Hague Apostille Convention in 1985; accordingly, from September onwards, Turkish documents will be valid in Vietnam with a single certificate. Moreover, thanks to Turkey's e-Apostille (e-Apostil) system, apostille procedures for certain document types can also be carried out electronically — an additional convenience that reduces the burden of in-person applications. The new mechanism is expected to translate into shorter processing times, lower legalization costs and reduced administrative burden for businesses and individuals. The following groups in particular will benefit from the new era:

• Students: Diplomas, transcripts and equivalency documents will be processed with a single apostille.
• Employees: In work permit files, a single apostille will replace multi-step legalization, reducing processing time and administrative burden.
• Companies: Consular queues will disappear for trade registry documents, powers of attorney and contract annexes.
• Family law procedures: The process will be simplified for birth, marriage and civil status certificates.

The gains in the opposite direction are also significant. Documents coming from Vietnam to Turkey — for example, a diploma from a Vietnamese university, a Vietnamese business partner's signature circular, or a civil status certificate required for marriage procedures — currently go through a long consular chain. From September 2026, these documents will be accepted in Turkey with an apostille from the Vietnamese authorities; before being submitted to institutions in Turkey, they will generally need a notarized translation into Turkish.

Step by Step: Preparing Documents from Turkey for Vietnam

Let's walk through a concrete scenario: as of the publication date of this post, an Istanbul-based company sending a power of attorney to a company in Vietnam first has the document drawn up at a notary, then completes, in order, the steps of sworn translation and notarization, approval by the Ministry of Foreign Affairs (Dışişleri Bakanlığı), and certification by the Vietnamese diplomatic mission. After 11 September 2026, the route shortens for the same company: following the notarial procedure and sworn translation, a single apostille certificate obtained from the provincial or district governor's office will suffice. The difference is significant in terms of both timeline and budget:

An important point to note is that the sequence may vary depending on the document type and the receiving institution's requirements. Some institutions want the apostille affixed to the original document, others to the notarized translation; getting the order wrong can force the entire process to be repeated from scratch. For this reason, obtaining written confirmation from the institution to which the document will be submitted before starting the official document legalization process is the cheapest insurance you can get.

Which Documents Are Covered — and Which Are Not?

Typical public documents eligible for an apostille include birth certificates, marriage certificates, criminal record extracts, diplomas and transcripts. Official documents such as powers of attorney, court decisions, notarial deeds and trade registry records can be added to this list. For students planning to study abroad, coordinating the apostille and academic translation processes for diplomas and transcripts helps prevent disruptions to the enrollment timeline.

On the other hand, the scope has its limits. Diplomatic documents and documents relating directly to commercial or customs operations fall outside the scope of apostille certification. For such documents, the procedure required by the receiving institution must be researched separately. For texts such as commercial contract annexes, technical specifications and product certification files, the quality of legal translation and technical translation requiring subject-matter expertise is decisive regardless of legalization; even if the legalization chain is flawless, a faulty translation can render the document useless.

An Apostille Does Not Eliminate the Need for Translation

A common mistake is assuming that an apostille also removes the translation requirement. Since the apostille only certifies the authenticity of the signature and seal, ensuring that the document's content is intelligible in the receiving country's language is a separate requirement. Even if your document is apostilled, the receiving institution will most often request a sworn translation into the target language; structuring the translation–notarization–apostille sequence correctly is also decisive in preventing your application from being rejected. Two procedures must be distinguished here: sworn translator certification is the sworn translator's declaration of the translation's accuracy with their signature and stamp, whereas notarization is the notary's authentication of the signature of a translator whose oath is on file with that notary. The two are not the same, and which one is required by which institution must always be clarified in advance.

Language planning also matters specifically for Vietnam. Since Vietnamese is a relatively rarely practiced language in Turkey, many institutions accept English translations; in that case, proceeding with an English translation can be both faster and more economical. At Ziya Tercüme, we plan the sworn translation, notarization and apostille stages for documents headed abroad — including to Vietnam — according to the destination country's current rules, and we provide support with document scheduling to help you avoid the date traps of the transition period.

Common Mistakes and Next Steps

The mistakes we see most often during transition periods are these: settling for an apostille before the entry-into-force date and skipping consular legalization; having the apostille affixed to the wrong document (without asking whether it should go on the original or the translation); commissioning only an English translation instead of Vietnamese (or vice versa) without confirming the receiving institution's language preference; and starting the process too close to the deadline. Especially for applications falling around September 2026, since the date on which the document will be submitted to the institution in Vietnam is the sole criterion determining the legalization route, the timeline must be planned backwards. For those running short on time, urgent express translation options can pull the process together on a compressed schedule; however, it should be remembered that the processing times of the certifying authorities are not within the translation agency's control.

In summary: for Vietnam-bound documents, the process becomes considerably simpler after September 2026 — but until that date, the old procedure applies. Choosing the correct legalization route based on your submission date prevents losses of both time and money. Once you have clarified your document type, target institution and submission date, consolidating the translation and legalization steps into a single timeline is the smartest move you can make during this transition period.

Sources

• HCCH (Hague Conference on Private International Law) — Viet Nam accedes to the 1961 Apostille Convention
• EY Vietnam — Vietnam accedes to the Apostille Convention: Simplifying legalization process from 11 September 2026
• Rödl & Partner — Vietnam joins The Hague Apostille Convention: Simplifying cross-border paperwork
• Erickson Immigration Group — Vietnam Joins Apostille Convention Effective September 2026
• Turkish Translators Association (TÜÇED — Türkiye Çevirmenler Derneği) — Apostille Contracting States