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For consular legalization at the Royal Thai Embassy in Tokyo, the handling differs between corporate documents and personal / civil status documents. Based on a meeting between our office and staff at the Embassy's Consular Section, corporate documents may be submitted by a proxy (agent), while personal / civil status documents — such as the Koseki Tohon (family register), marriage-related documents, and divorce-related documents — require the document holder to submit the application in person.
As a result, even where a Koseki Tohon or similar document is described elsewhere as eligible for full proxy consular legalization, an in-person application by the document holder may in fact be required. Rather than relying solely on the Embassy's website or on other providers' information, we recommend verifying the current handling for this type of document before engaging any service provider.
For personal / civil status documents, we do not offer the final Embassy application itself as a proxy service. Instead, we provide full support up to the point of your in-person visit — document confirmation, translation, notarization, Ministry of Foreign Affairs authentication, Thai translation, and appointment booking — so that the visit to the Embassy is the only step you need to handle yourself.
In practice, this means that for clients residing in Japan, we handle everything through authentication by the Ministry of Foreign Affairs, English translation, Thai translation, and Embassy appointment booking, so that all you need to do afterward is visit the Royal Thai Embassy in Tokyo and submit the application yourself. For clients residing overseas, we handle obtaining the required documents in Japan, English translation, and Thai translation, so that all you need to do afterward is complete a notarization procedure in Thailand or in your country of residence. Please see below for details.
Last reviewed: 2026-09-09 | Supervised by: Masakazu Sugita, Principal Administrative Scrivener, Immigration Lawyer SUGITA International Office
When a Japanese birth certificate is needed for use in Thailand — for example, for overseas birth registration, nationality acquisition procedures, and visa applications for children born to a Japanese parent — it must go through consular legalization, since Thailand is not a member of the Hague Apostille Convention.
Japan does not issue a single official document called a “Birth Certificate.” This page explains, specifically for Thailand, which Japanese document is typically used instead, how the consular legalization procedure works at the Royal Thai Embassy in Japan, and how translation requirements are handled. For a full explanation of the different Japanese documents that can serve as a birth certificate, please see our Birth Certificate guide. For general information about consular legalization for Thailand covering all document types, please see our Thailand country page.
Which Document Counts as a Birth Certificate?
Koseki Tohon and Related Documents
Which Document Counts as a Birth Certificate?
Koseki Tohon and Related Documents
・Family Register Certificate / Koseki Tohon (戸籍謄本)
This is one of the most common Japanese documents used to prove a person's birth, parent-child relationship, and other basic family status information. In most cases, this document alone is sufficient.
・Certificate of Acceptance of Birth Registration (出生届受理証明書)
This document certifies that a birth registration was officially accepted by a municipal office in Japan. It is often used as direct proof that the birth was properly reported and recorded in Japan.
・Certificate of Registered Matters of Birth Registration (出生届記載事項証明書)
This document certifies the information contained in the original birth registration submitted to the municipal office, including the date and place of birth, as well as the parents' details.
In practice, a Koseki Tohon is sufficient in many cases. However, some receiving authorities specifically require documentary proof of the birth itself rather than proof of family status, in which case a Certificate of Acceptance of Birth Registration or a Certificate of Registered Matters of Birth Registration may be requested instead.
The appropriate document depends entirely on the requirements of the authority in Thailand requesting it. We recommend confirming this with the receiving authority before starting the process. For a full explanation of each document type, please see our Birth Certificate guide.
* The above is the base price per single document. The total increases depending on the number of documents, translation, and notary/consular legalization fees.
Consular Legalization Procedure at the Royal Thai Embassy for a Birth Certificate
Step-by-Step Procedure for Thailand
Consular Legalization Procedure at the Royal Thai Embassy for a Birth Certificate
Step-by-Step Procedure for Thailand
Consular legalization for Thailand generally follows these steps:
- Notarization by a notary public (required for private documents, or if a translation is to be bound with the original as one set)
- Authentication by the Ministry of Foreign Affairs of Japan
- Consular legalization by the Royal Thai Embassy in Japan
Based on a meeting between our office and staff at the Consular Section of the Royal Thai Embassy in Tokyo, the document used as a birth certificate is treated as a personal/civil-status document, and the final application for consular legalization must be submitted in person by the document holder — an agent cannot submit this final application on the holder's behalf, even with a power of attorney. This in-person requirement applies specifically to personal/civil-status documents; for corporate documents, our office is able to handle the entire process, including the final Embassy submission, on your behalf.
Because of this, our support for birth certificate legalization for Thailand covers everything up to your embassy visit:
- Confirmation of the required documents
- Domestic acquisition of the document on your behalf, if needed
- English translation
- Notarization by a notary public
- Authentication by the Ministry of Foreign Affairs of Japan
- Thai translation, if required (see the note below)
- Support in booking your appointment through the Royal Thai Embassy's online reservation system
- Guidance on what to bring and how to apply on the day of your visit
- Advance delivery of the finished documents and translations before your appointment
With this support, in principle the only step you need to carry out yourself is the final in-person visit to the Embassy of Thailand in Tokyo to submit the application.
Since the document is issued in Japanese, it must be translated into English as part of the Japan-side preparation before the embassy visit.
On the day of your appointment, please bring a printed copy of the online appointment confirmation, the original document (already authenticated by the Ministry of Foreign Affairs), a black-and-white copy of the document, the completed application form, and a self-addressed Letter Pack if you would like the legalized document returned by mail. The embassy application fee is JPY 3,000 per legalization seal.
If you live overseas, please note that since the document is a personal/civil-status document, the embassy requires the in-person visit described above. Based on what the embassy confirmed to us, your options generally include a temporary return to Japan to complete the application yourself, or pursuing a Thailand-side procedure such as local notarization instead. If you are considering a Thailand-side procedure, we can still prepare the necessary Japan-side materials for you in advance — including acquiring the document, English translation, notarization, and Ministry of Foreign Affairs authentication, as well as the Thai translation — and send the finished materials to you. Please feel free to consult us about which option best fits your situation.
Translation Requirements
What Is Required for Thailand
Translation Requirements
What Is Required for Thailand
An English translation is generally required as part of the Japan-side process, since Japanese birth-related documents are issued in Japanese. Whether a further Thai translation is also required depends on where the document will be submitted. There is no absolute rule, but as a general tendency, government authorities in Thailand are more likely to require a Thai translation, while private institutions such as companies more often accept an English translation alone. Since this varies by case, we recommend confirming with the receiving authority in Thailand before starting the process.
Since these documents are issued only in Japanese, requirements for the Royal Thai Embassy can vary by case. We strongly recommend confirming in advance with the receiving authority in Thailand whether a translation is required, and if so, whether the original and translation must be bound together as one set.
Documents We Handle
Organized by Category
Documents We Handle
Organized by Category
Documents subject to Apostille or consular legalization are wide-ranging. Below is an overview of the documents we handle, organized by category.
※ Documents marked "View Details" have their own dedicated guide page.
※ The exact documents required and whether certification is necessary can vary depending on the destination country, receiving institution, and the nature of the document. Please feel free to contact us to discuss your specific case.
Birth Certificate
Common uses: Proof of birth for overseas birth registration, nationality acquisition, and visa applications
View Details→ 02Family Register (Koseki Tohon)
Common uses: Proof of family relationships for marriage, inheritance, and nationality matters (includes certificates of marriage/birth registration entries and certificates of divorce acceptance)
View Details→Certificate of Legal Capacity to Marry
Common uses: Proof of eligibility to marry for international marriage procedures overseas
Certificate of Celibacy / Single Status
Common uses: Proof of single status for marriage procedures and visa applications overseas
Legal Heir Information List
Common uses: Inheritance procedures for overseas assets, estate division discussions, and submissions to financial institutions
Passport Copy
Common uses: Certified identity document attached to contracts, registrations, and visa applications
Residency Certificate
Common uses: Proof of current address for visa applications/renewals and local account opening
Police Certificate
Common uses: Work visa and permanent residency applications, overseas immigration screening
Diploma / Transcript
Common uses: Study abroad, work-qualification screening, and academic credential recognition
View Details→Japanese Language Proficiency Certificate / Score Report
Common uses: Proof of Japanese language ability for overseas work and study visa applications
Resume / Curriculum Vitae
Common uses: Overseas work visa applications, submission to local employers
Certificate of Enrollment
Common uses: Proof of school enrollment for study visa applications
Certificate of Employment
Common uses: Proof of current employment for work visa applications
License / Permit (Various)
Common uses: Overseas submission of driver's licenses and other qualification licenses, local proof of qualification
Pension Certificate
Common uses: Overseas pension-benefit procedures, residency status screening
Tax Payment Certificate
Common uses: Overseas investment and immigration screening, proof of financial standing for local account opening
Certificate of Registered Matters
Common uses: Proof of company existence for overseas local entity formation, branch registration, and contract signing
Articles of Incorporation (Copy)
Common uses: Proof of the parent company's governing rules for overseas branch or local entity formation
Minutes of the Board of Directors Meeting
Common uses: Proof of major overseas resolutions such as officer appointments and capital increases
Letter of Acceptance of Directorship
Common uses: Director appointment procedures at an overseas local entity
Financial Statements
Common uses: Overseas investment screening, proof of financial standing for local entity formation and tender procedures
Contract / Agreement
Common uses: Signing contracts with overseas business partners, filings with local authorities
Deed of Consent to Transfer
Common uses: Submission to overseas parties in connection with the transfer of shares, equity, or other rights
Power of Attorney
Common uses: Delegating procedures to an agent overseas (real estate, corporate registration, litigation, etc.). Also covers SPA (Special Power of Attorney), Authorization Letters, and equivalent delegation documents
Affidavit
Common uses: Sworn statements of fact (single status, dependency status, etc.), evidentiary material for administrative and legal proceedings
Court Documents (Judgment / Certificate of Case Closure, etc.)
Common uses: Overseas litigation-related procedures, recognition and enforcement of judgments
Official Gazette
Common uses: Proof of statutory public notices such as company dissolution or capital reduction announcements
Certificate of Origin
Common uses: Import/export customs procedures, proof of origin in trade transactions
Commercial Invoice
Common uses: Import/export customs clearance, trade settlement documentation
National Diet Library Article Certification, etc.
Common uses: Proof of existence of published materials or articles, submissions for academic or research purposes
We may be able to assist with other documents not listed above. If your document isn't listed, please contact us — we're happy to discuss your specific case.
Reference Pricing for Birth Certificate Legalization for Thailand
Example Pricing and Conditions
Reference Pricing for Birth Certificate Legalization for Thailand
Example Pricing and Conditions
Our office provides consular legalization agency services for documents used in Thailand, including a Birth Certificate. We are also able to accommodate special procedures not listed in the pricing table below, so please feel free to contact us if you have any concerns.
| Base fee | 44,000 JPY〜 / per document + consular fee (For private documents, an additional notary fee of 12,500 JPY per document applies) |
|---|---|
| Additional identical documents (same destination country) |
11,000 JPY / each additional document + consular fee (For private documents, an additional notary fee of 12,500 JPY per document applies) |
| Translation | Quotation provided depending on the content and volume |
|---|---|
| Certified Translation | Quotation provided depending on the content and volume |
| Retrieval of documents issued by Japanese government offices |
11,000 JPY / per document |
| Retrieval of documents issued by universities or educational institutions |
11,000 JPY / per document |
| Domestic return | Included in the fee (via Letter Pack Light) |
|---|---|
| International standard shipping (EMS) | Quotation provided depending on the delivery country |
| International express shipping (DHL) | Quotation provided depending on the delivery country |
Please note that this is only a representative example, not a fixed quote. The actual price depends on a number of factors, including the number and type of documents, whether translation is required, whether the document needs to be shipped internationally, and whether you would like a scanned copy of the legalized document sent to you in advance of the physical delivery. Please contact us for an exact quote based on the details of your specific case.
* The above is the base price per single document. The total increases depending on the number of documents, translation, and notary/consular legalization fees.
About Japan Apostille Center (JAC)
Who we are
About Japan Apostille Center (JAC)
Who we are
Japan Apostille Center (JAC) is a specialized document authentication service that handles apostille applications issued by the Ministry of Foreign Affairs of Japan, as well as consular legalization procedures at foreign embassies and consulates in Japan.
We provide comprehensive support for the entire authentication process, including verification of country-specific procedures and application requirements, translation into English and other languages, notarization at notary offices, authentication by the Ministry of Foreign Affairs, submission to embassies and consulates, and international shipment of the documents after legalization.
Our center was established based on the practical experience in international documentation gained through our administrative scrivener practice, which handles immigration and residency matters for foreign nationals in Japan.
With expertise and extensive practical experience in the field of document authentication, we have handled a wide range of cases related to international business transactions, overseas relocation, visa applications, marriage procedures, study abroad, company establishment, and other matters requiring document authentication. As a result, we have built a strong reputation as a specialized service provider for international document authentication.
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Director's Message
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Principal Administrative Scrivener, Immigration Lawyer SUGITA International Office