Legal service for foreign clients
Corporate Document Certification for Cross-Border Deals and Foreign Registrations in Thailand
Cross-border deals stall on one corporate document that was never certified to the right level.
Quick answer
Banks, investors, and foreign registries routinely ask for the company affidavit, shareholder list, board resolutions, and mandates, certified by someone outside the company. We assemble the corporate pack, verify signing authority against the current affidavit, certify copies and directors' signatures, arrange certified translation, and carry the pack through consular and embassy authentication. From THB 12,000 per pack.
From THB 12,000 — From THB 12,000 per corporate pack; registry, retrieval, and embassy fees are billed at cost. · Pack and certify in 3–5 business days; full chain 1–3 weeks
Who this is for
- Thai companies registering a subsidiary or branch overseas
- Companies onboarding with an overseas bank or investment platform
- Shareholders certifying documents for a cross-border share transfer
- Companies bidding or registering as a vendor with a foreign body
- Groups sending the same pack to several reviewers
What you receive
- A checklist of exactly what the destination needs and in what order
- Verification of signing authority and seal conditions under the articles
- Draft board or shareholder resolutions supporting the transaction
- Certification of registry copies and directors' signatures
- Certified translation plus consular and embassy authentication
Documents to prepare
- A company affidavit issued within the last thirty days
- Memorandum, articles, and the shareholder register
- Minutes and resolutions relevant to the transaction
- Identity documents of the signing directors
- The recipient's form or document checklist
How it works
5-step process
- 1
Pull a fresh affidavit first
Most recipients count registry documents in days, and using an old one means redoing the entire chain.
- 2
Check which directors may sign under the articles
Joint-signature and seal conditions are the first thing an overseas reviewer checks.
- 3
Draft resolutions that cover the whole transaction
A resolution approving account opening but not the payment signatories leaves an account that exists but cannot be used.
- 4
Complete the pack before starting authentication
Feeding documents through one at a time costs visibly more in fees and days than filing the set together.
- 5
Keep a master set for next time
Cross-border transactions repeat in the same shape, and a master set halves the time on the next round.
FAQ
Frequently asked questions
The bank wants a certificate of incumbency — what is that?
It confirms who currently serves as director and who holds shares; in Thailand we combine the company affidavit, the shareholder list, and a lawyer's certificate to match the expected format.
The director is overseas — how do they sign?
Before a notary in that country with onward Thai embassy authentication, or in our office when the timetable allows.
Must the whole pack be translated?
Usually only what the recipient names, though a foreign registry generally wants the full set so the details reconcile.
Are self-certified company copies enough?
Often enough domestically, but nearly every cross-border matter wants an external licensed certifier.
Can resolutions be backdated?
No, and doing so carries civil and criminal exposure; the correct fix is a ratifying resolution passed today.
How does a foreign company use its documents in Thailand?
Authenticate at source and at the Thai embassy, then translate into Thai and certify the translation before filing with the commercial registrar or other agency.
Related services
Corporate & M&A Lawyer — Due Diligence, Joint Venture
Mid- to large-cap deals under FBA, BOI, JV — structuring and protection.
Powers of Attorney That the Land Office, Banks and Courts Actually Accept
A mandate drafted too widely endangers the grantor; drafted too narrowly it leaves the attorney unable to act.
Consular and Embassy Legalisation — The Whole Chain, From Translation to Destination
Thai documents are rarely refused on content; they are refused because one layer of authentication was skipped.
Written by: Thai Law & Accounting Services — attorneys and licensed accountants
Reviewed by: Reviewed by a Notarial Services Attorney registered with the Lawyers Council of Thailand.
Last updated: 2026-08
Information as of August 2026. Government fees and processing times change — verify with the relevant agency before acting, or let our team verify for you.