How to Get Japanese Documents Accepted Abroad: Apostille or Authentication?

2026年10月21日

How to Get Japanese Documents Accepted Abroad: Apostille or Authentication?

Start by asking the overseas office exactly which certification it requires. An apostille is the usual route for eligible Japanese public documents going to a country where the Apostille Convention applies. Authentication is generally the first step toward legalisation by the destination country’s embassy or consulate in Japan.

The difference matters: choosing the wrong route can leave you with a certified document that the receiving office will not accept. Japan’s Ministry of Foreign Affairs (MOFA) tells applicants to confirm the requirement before applying. MOFA explains the two certifications here.

This guide is for foreign residents and families preparing Japanese documents for overseas marriage registration, study, employment or other official procedures. Information was checked on October 8, 2026.

What you need to know:

The destination office determines the required document and certification route.
Public documents and private documents can require different preparation.
MOFA certification is free, but document issuance, postage, translation and notarisation can add costs.
Tokyo counter applications now require an online appointment; certified documents are returned by post.

TOC

Choose the route before ordering documents

The receiving office’s instructions should determine what you obtain in Japan.

Ask for written answers to these questions:

What is the exact document name, and is an original required?
Is an apostille required, or authentication followed by embassy legalisation?
How recently must the document have been issued?
Is a translation required, and who may prepare or certify it?
How many originals are needed?

This is particularly useful when an overseas office uses a broad label such as “marriage certificate.” Ask which Japanese document it accepts before paying for issuance or translation.

Apostille: the convention route

An apostille, アポスティーユ (aposutīyu), replaces embassy or consulate legalisation under the Apostille Convention where that route applies.

However, MOFA warns that a receiving office may require legalisation even when the destination is a convention country. Country membership alone is therefore not enough to decide your application.

Authentication: an additional embassy step

Authentication of official seals, 公印確認 (kōin kakunin), is MOFA certification used before legalisation by the destination country’s embassy or consulate in Japan.

For this route, receiving the document back from MOFA does not finish the process. You must arrange the embassy or consulate stage before submitting it abroad. Requirements for that stage need to be checked separately. See MOFA’s explanation of authentication and apostilles.

ここがポイント: Confirm the route with the office that will receive your document. An apostille and authentication are different procedures, and neither replaces the receiving office’s document requirements.

Check whether your document can go directly to MOFA

A document’s issuer and official seal determine whether direct certification is available.

MOFA’s basic requirements for directly certifiable public documents are:

An original showing its issue date, normally within the previous three months.
The issuing agency’s name and the issuer’s name and title.
An official seal, rather than only a personal seal or signature.

A photocopy does not qualify for direct certification simply because the original came from a public authority. MOFA also warns against removing staples or altering documents. Keep the issued document intact. Check the certifiable-document requirements before applying.

University documents need special attention

A university’s name does not settle the question. MOFA distinguishes direct authentication from direct apostille eligibility: documents from private universities and incorporated national or public universities cannot receive a direct apostille, although a notarised route may be available.

For an older diploma issued only once, ask about the exception to the normal three-month rule before ordering a replacement. MOFA’s FAQ covers university documents and older originals.

Private documents require preparation first

Private documents generally need notarisation, followed by certification of the notary’s seal by the relevant legal affairs bureau, before MOFA certification.

The offices you may encounter are:

公証役場 — kōshō yakuba: notary public’s office.
法務局 — hōmukyoku: legal affairs bureau.
外務省 — Gaimushō: Ministry of Foreign Affairs.

Send the notary the receiving office’s instructions before arranging an appointment. That gives the notary a chance to explain the required format and supporting documents. MOFA’s procedure flow sets out the notarial route.

Use regional shortcuts only when they cover your document

Some notary offices can combine stages, but the service is not nationwide.

MOFA lists a full one-stop service in:

Hokkaido, within the Sapporo Legal Affairs Bureau’s jurisdiction.
Miyagi, Tokyo, Kanagawa and Shizuoka.
Aichi, Osaka and Fukuoka.

On request, these offices can combine the notarial document, legal affairs bureau certification and MOFA authentication or apostille. Authentication still requires the subsequent embassy legalisation step.

A more limited combined service is available in Saitama, Ibaraki, Tochigi, Gunma, Chiba, Nagano and Niigata: the notarial and legal affairs bureau stages can be handled together, but MOFA certification remains separate.

Confirm the service, price and timing with the notary before travelling. MOFA lists the regional arrangements here.

Prepare the application and choose how to submit it

Postal submission lets residents apply without travelling to Tokyo or Osaka.

For a standard postal application, prepare:

The original document to be certified.
The correct authentication or apostille application form.
A power of attorney if applying through a representative, where required.
A trackable, prepaid return envelope with the return address completed.

Download the current form through MOFA’s certification portal. Include a daytime telephone number so staff can contact you about problems.

Applications may be sent to either MOFA’s Tokyo headquarters or Osaka Liaison Office. MOFA does not accept international postal applications or return documents overseas. For postal applications, the return recipient and address must match the applicant’s details. Read the submission instructions before sending originals.

Tokyo: appointments required from October 5, 2026

Tokyo counter applications require an online reservation. There is no walk-in service. Bring your appointment confirmation, identification, application documents and prepared return envelope.

Osaka: no advance appointment required

MOFA’s current instructions say Osaka does not require an advance appointment. Bring identification and the application materials, including a trackable return envelope.

Counter submission does not provide same-day collection. If an application is complete, MOFA states that it normally posts the certified documents after three business days—for example, a Monday receipt followed by Thursday afternoon dispatch. Postal transit takes additional time. See the current counter and postal procedures.

Budget for the whole process, not just certification

MOFA charges ¥0 for authentication or apostille certification, but preparation and delivery may cost money. MOFA confirms the fee in its FAQ.

Build your budget around the stages you actually need:

Document issuance: ask the issuing organisation about charges.
Postage: include outgoing and return delivery.
Notarisation: request a quote for your document and language.
Translation: obtain a quote after confirming the recipient’s requirements.
Embassy legalisation: check the destination mission’s fee and appointment rules.

For deadlines, work backwards from the overseas submission date. Allow time for document issuance, any notarial stages, MOFA processing, postal delivery and any embassy appointment. A counter visit does not remove those later stages.

Avoid mistakes that force you to start again

The biggest avoidable expense is preparing the wrong document or certification package.

Before paying or posting, check for these problems:

Choosing by destination country alone: obtain the recipient’s exact certification instructions.
Sending a photocopy for direct certification: check whether an original or notarised route is required.
Assuming an English document needs no further work: language and certification are separate requirements.
Booking travel before checking the counter rules: Tokyo now requires an appointment.
Leaving the embassy stage until the deadline: authentication may still need legalisation after MOFA returns it.

Translation deserves its own check. MOFA does not translate documents; recipients may accept an applicant’s translation, require notarisation or specify a translator. Get that answer before commissioning the work. MOFA explains translation requirements in its FAQ.

Check the latest rules before sending originals

Recent changes affect both counter visits and destination-country checks.

MOFA’s current portal records:

Tokyo’s appointment requirement from October 5, 2026, with return by post.
Vietnam’s Apostille Convention entry into force on September 11, 2026.
Algeria’s entry into force on July 9, 2026.
Online authenticity verification for apostilles issued on or after June 1, 2026.

These updates make older instructions worth rechecking, particularly if a school, employer or adviser supplied a checklist months ago. See MOFA’s current certification notices.

For questions about Japanese certification, MOFA’s published contact is 0570-011000, with English available by pressing 2, then 5. For overseas calls and some IP phones, use +81-3-5369-6577. Hours are weekdays, 9:00–17:00, excluding holidays. Contact details and office addresses are listed here.

Before sending an original, have three things in writing: the accepted document, the required certification route and the translation requirements. Those answers determine which Japanese office you need next—and which fees you can avoid paying twice.

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