Legal service for foreign clients
Signature Certification for Bank, Broker and Overseas Agency Forms in Thailand
Plenty of overseas forms fail at one box only: the line that reads signed before me.
Quick answer
Signature certification confirms that the person signing is the person shown in the identity document and that the signature was made in front of the certifying lawyer. It is used for overseas bank onboarding, share transfer forms, pension life certificates, and financial-institution identity checks. We review the form before the appointment, mark what must be signed and what must be left blank, then attach a certificate. From THB 2,500 per document.
From THB 2,500 — From THB 2,500 per document, with a reduced rate for additional documents in the same appointment. · Completed within a single 30–45 minute appointment
Who this is for
- Foreign residents verifying identity to a bank back home
- Pensioners filing an annual life certificate
- Shareholders signing transfer forms for a foreign company
- Thais onboarding with an offshore investment or crypto platform
- Insurance and fund claimants whose forms require a witnessing officer
What you receive
- A pre-check of the form and a list of the boxes the certifier must complete
- Identity verification with certified copies of the identity documents
- Certification wording citing the licence number and the exact time of signing
- Several documents certified in one appointment to keep costs down
- Guidance on sending the originals overseas safely
Documents to prepare
- The original unsigned form
- A current passport or Thai ID card
- Proof of current address where the form calls for it
- The completion instructions issued by the receiving institution
- The relevant account or policy reference
How it works
5-step process
- 1
Do not pre-sign
A form already signed cannot be certified, because the whole point is witnessing the pen touch the paper.
- 2
Check which certifier the recipient accepts
Some institutions name lawyers only, others accept a bank officer or doctor, and checking first saves a wasted trip.
- 3
Come with the full set of originals
Copies without the originals to compare against cannot be certified as true in the same sitting.
- 4
Photograph the pack before it ships
A photo set of the certified pack settles queries instantly when the courier is late or the parcel disappears.
- 5
Keep the certification record
When the bank calls to verify, we need the register number and the recorded time to hand.
FAQ
Frequently asked questions
My overseas bank asked for a notarised copy — what is that?
It means a copy that an authorised person confirms matches an original they have seen; in Thailand a notarial services attorney does this with dated certifying wording and a seal.
Can this be done over video call?
Not where the signing itself must be observed, since the wording states that the signatory was physically present.
I have ten documents — how many appointments?
One is enough if the files are sent ahead for checking and every original arrives on the day.
The signatory is a company — who attends?
The director authorised in the latest company affidavit, bringing the corporate seal if the articles require one.
Does the form need a Thai translation first?
No, provided the signatory understands the content, and we always walk through the substance before signing.
What if the recipient rejects the certification?
Send us the stated reason; most are cured by adjusting the wording or adding the next layer of authentication, and we reissue without charging the certification fee again.
Related services
Affidavits and Sworn Statements Before a Notarial Services Attorney
What makes a statement usable abroad is not elegant drafting but a deponent who swore it correctly in front of someone entitled to take the oath.
Certified True Copies for Filing With Thai and Foreign Authorities
The original should stay with you; the certified copy is what ought to travel.
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.
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.