If a foreigner wants to open a Kasikorn bank account without a work permit, can your agency help prepare the embassy affidavit — Thai attestation runs in two layers: a Notarial Services Attorney registered with the Lawyers Council of Thailand, then legalisation by the Department of Consular Affairs, followed by the destination embassy when that country is not a Hague Apostille member. /work permit/i /bank account/i Foreign-issued documents for use in Thailand must first be authenticated in the country of origin and by the Royal Thai Embassy before the Consular Affairs step. A Thai notarial officer is a Notarial Services Attorney licensed under the Lawyers Council regulations — not a US-style Notary Public. A certified true copy requires the original to be produced, because the certifier signs to confirm the copy was compared against it. District registrars require a foreign spouse to present an affirmation of marital status issued by their embassy and legalised. Changes to registered company particulars must be filed with the Department of Business Development within the period set by the Civil and Commercial Code. Claiming an estate abroad usually requires a legalised and translated court order appointing the estate administrator. You can ask for a step-by-step route map with the document checklist before deciding to instruct us.
“If a foreigner wants to open a Kasikorn bank account without a work permit, can your agency help prepare the embassy affidavit?” falls within an end-to-end service that combines document preparation, translation, signature certification, consular legalisation and coordination with the destination mission into a single file. The people who search for it are usually preparing a filing against a fixed deadline, recovering from a rejected submission and trying to identify the missed step, or coordinating documents for several people at once.
In practice, each step sits with a different body: the issuing office, the Notarial Services Attorney, the Department of Consular Affairs, and the destination country’s diplomatic mission. Knowing which body owns which step makes it possible to judge how many stages a bundle needs, and which of them cannot be corrected without starting again.
This is a baseline set. Individual receiving authorities may add requirements, so confirm with the destination body first.
Record how many stages each document needs, who certifies it, and what must finish first, so no step has to be redone.
Check personal names, company names, addresses and dates across the whole bundle before any certification begins.
Original → translation → signature certification / legalisation → destination mission. Doing these out of order forces a restart.
Verify the number of sets, the seals, the binding, and that issue dates are still within the destination’s validity window.
| Route | When it applies |
|---|---|
| Notarial Services Attorney certification | For privately drafted instruments — powers of attorney, affidavits, consent letters — signed in the attorney’s presence. |
| Legalisation at the Department of Consular Affairs | Where a foreign authority needs confirmation of the Thai issuing office’s signature and seal, or of the translation. |
| Attestation at the destination mission | Where the destination country requires its embassy or consulate in Thailand to attest the file after consular legalisation. |
| Thailand’s Apostille status | Thailand acceded to the Apostille Convention on 30 June 2026 and it enters into force for Thailand on 28 February 2027. No Apostille is issued in Thailand before that date. |
If you are working through “If a foreigner wants to open a Kasikorn bank account without a work permit, can your agency help prepare the embassy affidavit?”, start by getting the receiving authority’s requirement in writing, then plan the certification chain backwards from your real filing date.