Notarization, Apostilles & Consular Legalization

We prepare Japanese documents for overseas use, arranging notarization and Ministry of Foreign Affairs or consular authentication according to the country, receiving authority and document type.

Authentication for documents used overseas

Family registers, registration certificates, graduation certificates, powers of attorney, affidavits and contracts may require authentication of the author or official seal when submitted overseas. The procedure depends on whether the destination is a party to the Hague Convention and how the receiving authority classifies the document.

Apostilles and official-seal authentication

An apostille is a certificate issued by Japan’s Ministry of Foreign Affairs for eligible Japanese public documents used in Hague Convention countries. Official-seal authentication is primarily used for non-member countries and may be followed by legalization at the destination country’s embassy or consulate in Japan.

Private documents

Powers of attorney, affidavits, privately signed documents and translations may first require notarization, then certification of the notary’s seal by the Legal Affairs Bureau and authentication by the Ministry of Foreign Affairs. One-stop services at notarial offices may be available in Tokyo, Kanagawa, Osaka and certain other areas.

A power of attorney may be unnecessary when we apply on your behalf

The Ministry’s application form allows certain authorized professionals, including administrative scriveners, to omit the power-of-attorney section when filing for a client. We check the document and applicant details first. Where no power of attorney is required, this can avoid mailing the original authorization and reduce postage and turnaround time.

Please note:A separate power of attorney may still be required, for example when a company applies on behalf of an employee for that individual’s family register or graduation certificate. We check the documents and application method and explain what is needed.

Services we provide

• Check authentication requirements and document conditions
• Explain how to obtain family registers and corporate certificates
• Prepare powers of attorney, affidavits, consents and minutes
• Prepare translations and translation certificates
• Submit to notarial offices and the Ministry of Foreign Affairs
• Arrange consular legalization at embassies and consulates in Japan
• Check consistency, binding requirements and validity periods

How the process works

1. Confirm destination, receiving authority, purpose and deadline
2. Check prescribed forms and authentication requirements
3. Obtain originals and prepare documents and translations
4. Arrange notarization, seal authentication, apostilles or consular legalization
5. Review and deliver the completed documents

Check the requirements before starting

Even within one country, authorities may require originals, documents issued within three months, particular translator qualifications or a specific authentication sequence. Confirming current conditions with the receiving authority before starting helps prevent repeat work and missed deadlines.

Eligibility, required documents and review periods vary by nationality, receiving authority and circumstances. We assess your situation at the initial consultation and explain the appropriate approach.