Q1. Which corporate documents usually need legalisation?
Certificates of incorporation, good standing certificates, board resolutions, powers of attorney, articles of association and signature specimen forms are the documents most often requested by Thai registrars and banks.
Q2. What is the current authentication route for foreign corporate documents?
Notarisation in the country of issue, authentication by that country's competent authority, legalisation by the Royal Thai Embassy or Consulate, then certified Thai translation on arrival. From 28 February 2027 the Hague Apostille Convention enters into force for Thailand and will simplify the chain between contracting states.
Q3. Does the translation come before or after legalisation?
For documents used in Thailand, the foreign document is authenticated first and the Thai translation is prepared afterwards, then certified where required. Reversing the order usually forces the file to be redone.
Q4. How long are legalised corporate documents valid?
The certification itself does not expire, but Thai registrars and banks typically want company extracts issued within three to six months. Plan the sequence so the extract is still fresh at filing.
Q5. Can a power of attorney be signed digitally?
Thai registrars and most banks still expect wet-ink originals with notarisation. Electronic signatures are accepted in a growing number of private contracts but not yet reliably for registry filings.
Q6. What language must contracts be in?
Parties are free to contract in English, but documents filed with Thai authorities or produced in a Thai court require a Thai translation, and the Thai text will generally govern in proceedings.
Q7. Are foreign judgments enforceable in Thailand?
Foreign judgments are not directly enforceable. A claimant must bring a fresh action in the Thai courts, using the foreign judgment as evidence. Foreign arbitral awards, by contrast, are enforceable under the New York Convention.
Q8. Should a cross-border contract choose arbitration?
Arbitration is often preferred where enforcement across borders matters, because awards travel more easily than judgments. The clause must name the seat, the rules and the language clearly to be effective.
Q9. What is needed to open a corporate bank account?
Registration documents, the shareholder list, board resolution, identification for all authorised signatories, evidence of the office, and often a director present in person. Compliance review of foreign shareholders can add several weeks.
Q10. How are transfer pricing rules applied?
Companies above the statutory revenue threshold file a disclosure form with the annual return and must be able to produce documentation showing that related-party transactions were priced at arm's length.
Q11. What due diligence should a buyer run before acquiring a Thai company?
Verify the registered extract and share register, review audited accounts and tax filings, check land and lease titles, confirm licences are current and transferable, review employment obligations, and search for litigation and encumbrances.
Q12. Can employment contracts be governed by foreign law?
In practice Thai labour protection applies to work performed in Thailand regardless of the stated governing law, so mandatory provisions on severance, working hours and termination cannot be contracted away.
Q13. What obligations arise under the personal data protection law?
Companies processing personal data need a lawful basis, a privacy notice, records of processing, security measures and a breach response process. Cross-border transfers require an adequate destination or approved safeguards.