If you are living, working, or getting married in Thailand as a foreigner, you have probably heard the term "certified translation" — but knowing exactly which documents require it can be confusing. This guide breaks it down clearly so you know what to prepare before visiting a government office, embassy, or district office.
What Is a Certified Translation?
A certified translation is a translation accompanied by a signed statement from a qualified translator confirming that the translation is accurate and complete. In Thailand, certified translations are typically required when submitting foreign-language documents to Thai government agencies, courts, or embassies.
The translation must be done by a professional translator and, in many cases, also notarised by a licensed Notarial Services Attorney.
Documents Commonly Requiring Certified Translation
1. Passport and Identity Documents
Your passport is the most frequently translated document. Thai government offices require a certified Thai translation of your passport's biographical page when applying for:
- Long-term visas (Non-Immigrant O, B, ED)
- Work permits
- Marriage registration
- Property purchase
2. Birth Certificates
A certified translation of your birth certificate is required for:
- Marriage registration at the district office (Amphoe)
- Applying for a Thai child's birth certificate
- Adoption proceedings
- Inheritance and estate matters
3. Marriage and Divorce Certificates
If you have been previously married, you will need a certified Thai translation of your marriage certificate or divorce decree when:
- Registering a new marriage in Thailand
- Applying for a dependent visa for a spouse
- Changing your name after marriage
4. Criminal Background Checks
A police clearance certificate from your home country — with a certified Thai translation — is required for:
- Non-Immigrant B (business/work) visa applications
- Teaching licence applications
- Certain professional licences in Thailand
5. Academic Certificates and Transcripts
Certified translations of degrees and transcripts are needed for:
- Work permit applications (especially for teachers and professionals)
- University enrolment
- Professional licence applications (medical, legal, engineering)
6. Power of Attorney Documents
If you are authorising someone to act on your behalf in Thailand — for property transactions, business registration, or legal matters — a certified translation of the power of attorney is required.
7. Company and Business Documents
Foreign businesses operating in Thailand often need certified translations of:
- Articles of incorporation
- Shareholder agreements
- Board resolutions
- Financial statements (for BOI applications)
8. Medical Records
Certified translations of medical records may be required for:
- Health insurance claims
- Medical visa applications
- Legal proceedings involving personal injury
Does Every Translation Need Notarisation?
Not always. The level of certification required depends on the receiving authority:
- Thai government offices (immigration, district office): Usually require a certified translation with the translator's signature and stamp.
- Thai courts: Require notarisation by a Notarial Services Attorney.
- Foreign embassies in Thailand: Requirements vary by country — always check with the specific embassy.
- Ministry of Foreign Affairs legalisation: Required when documents will be used abroad.
How Long Does It Take?
Most standard certified translations are completed within 1–2 business days. Urgent same-day service is available for most document types. Complex legal or technical documents may take longer.
Tips Before You Come In
- Bring the original document — not a photocopy — whenever possible.
- Check with the receiving authority (embassy, government office) about their specific requirements before ordering your translation.
- If your document needs to be used in multiple countries, ask about apostille or legalisation services at the same time.
Get Your Documents Translated in Pattaya
Our team at Pattaya Certified Translation handles all types of official document translation with fast turnaround and competitive pricing. We are located in Pratamnak, Pattaya, and serve clients from all nationalities. Contact us today for a free quote.