Thailand is not a Hague Convention member — apostille not recognized. Foreign documents for Thailand need: home country authentication → Royal Thai Embassy legalization → Thai translation (if required).
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What country issued your document?
Thailand has not joined the Hague Convention. Unlike neighboring China (which joined in 2023), Thailand still requires the full Embassy legalization chain for all incoming foreign documents. The Royal Thai Embassy in your home country is the key authentication step.
Thailand's Ministry of Labour requires legalized educational and professional credentials for work permit applications. Foreign nationals need Thai Embassy-legalized documents from their home country.
Foreigners marrying Thai nationals need personal status documents legalized through the Thai Embassy in their home country. Thai civil registry requires affidavit of freedom to marry from your home country embassy plus legalization of supporting documents.
Foreign companies registering with Thailand's Department of Business Development (DBD) or under BOI promotion need legalized corporate documents through the Thai Embassy chain.
| Document | Issuing authority | Estimated time | Notes |
|---|---|---|---|
| Original foreign document | Your home country issuing authority | Before process starts | Thailand is NOT a Hague Convention member. Apostille is not recognized in Thailand. Full consular legalization required for foreign documents used in Thailand. |
| Home country authentication | Apostille authority (Hague) or MOFA (non-Hague) | Varies by country | First authentication step before Thai Embassy submission. |
| Thai Embassy or Consulate legalization | Royal Thai Embassy in your home country | 5–15 business days | Final legalization by the Royal Thai Embassy. Thailand has embassies in Washington DC, London, and major cities worldwide. |
| Thai translation (if document is not in Thai or English) | Certified translator (Thai) | 3–5 business days | Thai authorities commonly require certified Thai translation. English-language documents may be accepted by some Thai authorities without translation. |
We confirm your home country authentication route and Thai Embassy requirements for your specific Thailand purpose.
We obtain apostille or MOFA attestation in your home country.
We submit to the Royal Thai Embassy in your home country for legalization.
Thai translation is arranged if required by the Thai authority. Complete document set delivered.
Information on this page is based on procedures from recognized government and intergovernmental bodies — not third-party estimates.
Reviewed by
Laura ChenLegal Document Expert
Specialist in documents for the English-speaking market with a focus on fast and secure processing.
No. Thailand has not ratified the Hague Apostille Convention. Foreign documents for use in Thailand must be legalized through the Royal Thai Embassy in the country of issue — apostille alone is not sufficient.
Thai work permits require legalized educational credentials (highest degree) and professional certificates. Thailand's Ministry of Labour accepts documents from the Royal Thai Embassy-legalized chain. Some employers also require Thai translation by a certified translator.
Foreigners marrying in Thailand typically need an affidavit or declaration of freedom to marry from their home country embassy in Thailand. This is separate from document legalization but both are required. We handle document legalization; the embassy affidavit is a separate step usually done in Thailand.
Home country authentication: 1–3 weeks. Royal Thai Embassy: 5–15 business days. Thai translation (if required): 3–5 days. Total: approximately 3–5 weeks.
Thai authorities vary. Some accept English-language documents (particularly for business registration), while others require certified Thai translation. We advise on translation requirements based on your specific Thai authority and purpose.
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