Opening a Thai corporate bank account: documents needed and why some applications are refused
The documents and steps for a Thai corporate bank account, for Thai and foreign directors alike, plus why banks ask for more or decline.
Zura Labs & Business Hub Co., Ltd.
Corporate accounts are opened at a branch with the authorised director present. The core set is a recent company affidavit within the bank's accepted age, the shareholder list, a board minute authorising the account and the signatories, the company seal if you have one, and each director's ID or passport. Approval is the bank's decision under know-your-customer rules; they will ask about the nature of the business, the real premises and expected turnover, so prepare a consistent story with supporting documents.
Reviewed 2026-09-15 by the Zura Labs corporate services team.
- Who must attend
- The directors authorised in the affidavit; if two must sign jointly, both attend.
- Age of the affidavit
- Most banks accept only a recently issued affidavit, so request a fresh copy before your branch visit.
- Board minute
- It must name the bank, the account type, the signatories and the signing conditions.
- Foreign directors
- Banks usually ask for the passport, immigration evidence and, in many cases, visa or work permit documents.
- Documents that smooth approval
- The lease, photos of the premises, a company website, the VAT certificate and a first client contract.
- What nobody can promise
- Account approval is the bank's own decision; no provider can guarantee the outcome.
How this works in practice
- 01
Wait until registration documents are complete
You need the affidavit, shareholder list and tax ID first; going to a branch before that usually wastes the trip.
- 02
Pick the bank by how you will use it
Compare transfer fees, corporate online banking, and how it connects to your payment gateway and accounting software — not just which branch is nearest.
- 03
Hold the meeting and minute it
Record the bank, branch, account type, signatories and signing conditions exactly as you will present them.
- 04
Call the branch and confirm the list
Requirements differ slightly by bank and branch; asking ahead and booking a slot avoids repeat visits.
- 05
Answer the business questions consistently
Explain what you sell, who buys, how money arrives and the expected volume — matching your objectives and the documents you filed.
- 06
Keep company and personal money apart
Once open, route every company receipt and payment through it. Taking client money into a personal account tangles the books and tax for the whole year.
Reasons this gets delayed or rejected
Address that does not match the story
If the bank finds the premises are not used as described, it asks for more documents or slows the file. Describe how you actually work from the start.
Directors who cannot attend
Most banks must meet the authorised directors in person; a power of attorney works only in limited cases.
Objectives that read as high risk
Objectives covering finance, crypto or gambling raise the bank's scrutiny even if you never intend to do them.
Waiting on the account before starting
If you must take payment earlier, record every item and move it into the company account as soon as it opens, with documentation for each transaction.
Answers to the questions we hear most
Can a foreign director open the account?
Yes, though banks typically ask for more — passport, proof of stay, and often visa or work permit. Conditions differ by bank and branch.
Can I open an account with a virtual office address?
Many banks accept it when the documents are complete and you can explain how you operate, but some branches ask for extra proof of use — check with the branch first.
How much opening deposit is needed?
It differs by bank and changes over time — ask the branch directly. We do not publish a figure that can change at any time.
What if the bank declines?
Ask for whatever reason the bank can share, fix the missing documents or explanation, then apply to another bank whose conditions suit your business better.
This is general preparation information, not case-specific legal or accounting advice. Government fees, processing times and conditions change with official announcements. We review each guide on a schedule and show the review date on the page.