Apostille for Thailand — Thai Embassy Legalisation Now, Apostille from 28 February 2027

Thai Embassy legalisation until February 2027

The Royal Thai Embassy in Singapore publishes a "non-Thai document verification" service for documents issued in Singapore. Its checklist asks for:

• The original document and a copy, bearing the seal of a Singapore notary public
• Legalisation by the Singapore Academy of Law (SAL)
• A copy of every page of the original
• A completed application form from the embassy website
• The fee of SGD 30 per document, cash only
• Documents in English, or with an English translation

Submissions are Monday to Thursday, 9:30 to 11:30am, with no appointment. Collection is Monday to Thursday, 2:00 to 3:00pm, and processing takes 3–5 working days. A representative can submit with an authorisation letter and copies of both the owner's and the representative's identity cards, which is how we submit for you.

Because this checklist refers to a notary's seal, we usually route even public documents, such as a ROM marriage certificate, through a notarised certified copy before SAL. That follows the embassy's requirement, not SAL's. Other embassy services differ: its translation-verification and birth registration pages accept Singapore government documents with SAL authentication alone, so we confirm the format with the embassy for your document before starting.

The order is always: notary, then SAL (SGD 87.20 for a notarised document), then the Royal Thai Embassy.

What changes when Thailand joins the Apostille Convention

Thailand deposited its instrument of accession on 30 June 2026, and the Convention enters into force for Thailand on 28 February 2027. From that date, Singapore public documents, including notarised documents authenticated by SAL, need only the SAL apostille for use in Thailand. No Royal Thai Embassy step should be required.

What will not change:

• Private documents still need a notary before SAL.
• Thai translation will still be required by most Thai offices. The Convention removes legalisation; it does not remove language requirements.
• The receiving office still decides. District offices and agencies may take time to update their checklists, so confirm before you skip the embassy.

If your document is needed before 28 February 2027, use the embassy route now. For the general non-Hague process, see our embassy legalisation service.

Marriage and child registration documents for Thailand

Marrying in Thailand

A Singaporean marrying in Thailand registers at a Thai district office (amphur or khet). There is no Singapore "no impediment" letter, so the usual proof is an ROM marriage records search result, often with a statutory declaration of single status. There are two routes:

• From Singapore: notarise the documents, then SAL, then the Royal Thai Embassy, then translate into Thai.
• In Bangkok: the Singapore Embassy in Bangkok certifies a copy of the ROM search result and your passport, which is then translated into Thai and legalised by Thailand's Ministry of Foreign Affairs before you go to the district office with two witnesses and an interpreter.

Registering a Singapore marriage or a child's birth

Thai nationals who married in Singapore may need their ROM marriage certificate legalised to update Thai records. A Thai parent registering a Singapore-born child at the Royal Thai Embassy needs the original ICA birth certificate authenticated by SAL, either directly or after a notary. The embassy adds SGD 30 per page for SAL-only documents, or SGD 30 per notarised set, and takes about 7 working days. See our marriage certificate apostille and birth certificate apostille pages for the SAL side, or apostille for marriage abroad for other countries.

Company power of attorney for Thailand

Singapore companies appoint Thai lawyers, accountants or managers to register companies, open bank accounts, sign leases or deal with the Revenue Department. The Thai side usually asks for:

• A power of attorney signed by a director
• A board resolution authorising the POA
• ACRA Business Profile or Certificate of Incorporation
• Passport copies of the signing directors

The POA and resolution are private documents, so a notary witnesses the director's signature, SAL authenticates the notary, and the Royal Thai Embassy legalises. An ACRA extract could carry an SAL e-Apostille, but until 28 February 2027 the Thai Embassy route needs paper, so we obtain paper documents. See company documents apostille and power of attorney apostille for details.

We also help companies preparing supporting documents for Thai long-stay visas such as the Destination Thailand Visa, following the same notary, SAL and embassy order. The visa checklist comes from the Thai authorities, so we work from the list you receive.

Thai translation and certification in Bangkok

Most Thai government offices want documents in Thai. You have two options:

1. 1Verification at the Royal Thai Embassy in Singapore. The embassy verifies English-to-Thai translations of civil, educational and company documents that have been authenticated by SAL. Its published fee is SGD 60 per document (contracts and court papers are charged by word count), processing takes about 4–6 days, and there is no express service.
2. 2Translation and legalisation in Bangkok. A Thai translator translates the embassy-legalised document, and the translation is legalised by the Department of Consular Affairs at the Ministry of Foreign Affairs in Bangkok, on Chaeng Watthana Road. The department's published fee is 200 baht per certification (400 baht per page for contracts and court papers), usually within 2 working days.

Before any translation, we check that every name matches the passport exactly. Thai transliterations of Singapore names vary, and a mismatch between documents can stop a district office from registering a marriage. Ask the Thai office which route it prefers.

Thailand legalisation price and time

A one-signer company POA for Thailand therefore starts from about SGD 314 all-in (SGD 215 + SGD 69 + SGD 30). Allow 1–2 working days for notary and SAL, then 3–5 working days at the embassy, which takes documents Monday to Thursday only. See our apostille price page for packages.