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Thailand

Destination Guide

Korean Documents for Thailand

Thailand has acceded to the Hague Apostille Convention, and it enters into force on 28 February 2027. Until then, an apostille is not valid in Thailand and Korean documents need consular legalization; from that date they can be authenticated with an apostille. The current chain is: English translation of Korean-language documents with notarization (skip if the document is issued in English), Overseas Koreans Agency (OKA) authentication, legalization at the Thai Embassy in Seoul, Thai translation in Thailand, and certification by the Thai Ministry of Foreign Affairs. Required documents can differ between Thai receiving bodies, so check in advance. Our specialists can handle the Korean-side translation and legalization steps.

Requirements & key facts

Thailand has acceded to the Hague Convention, but it only enters into force on 28 February 2027 — until then apostille is NOT valid in Thailand and consular legalization is required
From 28 February 2027, Korean documents can be apostilled (OKA for public documents; the Ministry of Justice for notarized private documents)
Current chain: English translation with notarization (skip if issued in English) → OKA authentication → Thai Embassy in Seoul legalization → Thai translation in Thailand → Thai MFA Department of Consular Affairs certification
The Thai Embassy in Seoul only accepts documents whose Korean-side authentication is less than 3 months old; collection in person takes 4 business days according to the embassy
The Thai translation is made in Thailand and certified by the Thai Ministry of Foreign Affairs
For marriage at an Amphur, BOI company setup, or long-stay visas, check the required documents with the Thai receiving body

Apostille guides by document type

Step-by-step instructions for each Korean document you need apostilled for Thailand.

Birth CertificateDiplomaAcademic TranscriptMarriage CertificateCriminal Background CheckPower of AttorneyFamily RegisterCorporate Registration

Available services for Thailand

Embassy LegalizationCertified Translation

Frequently Asked Questions

Can I use an apostille for Korean documents in Thailand?

Not yet. Thailand has acceded to the Hague Apostille Convention, but it only enters into force on 28 February 2027, so until then apostille is not valid in Thailand. Until that date, Korean documents need OKA authentication and legalization at the Thai Embassy in Seoul, followed by Thai translation and Thai MFA certification in Thailand. From 28 February 2027 an apostille can be used.

What Korean documents do I need for marrying a Thai national in Thailand?

Required documents can differ by district office (Amphur), so check with the office you will visit first. Korean documents go through English translation with notarization (skip if issued in English), OKA authentication, and Thai Embassy legalization, then Thai translation and Thai MFA certification in Thailand. If you registered the marriage in Korea first, it cannot be registered again under Thai law; only the marriage fact can be recorded.

What Korean corporate documents need to be legalized for a business setup in Thailand?

Check the required Korean corporate documents with the Thai receiving body (including BOI). Private documents such as a power of attorney must first be notarized by a Korean notary before OKA authentication. Consular legalization applies until 28 February 2027, and an apostille after that date.

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