Director Changes & Signing Authority in Thailand

Identify the change and the decision required

Distinguish a new appointment, replacement, resignation, removal and a change to signing authority. They are not interchangeable. Read the company’s articles, existing registered authority and any shareholder agreement before preparing resolutions. A board’s ability to fill a vacancy does not mean it can approve every possible change to the board or signing powers.

The DBD director-change manual distinguishes appointments by shareholders from certain vacancy replacements by the board. It also explains that a change to signing authority normally requires the relevant shareholder decision unless the articles give the board the necessary authority. Obtain legal review where the facts, articles or authority are disputed.

Record the effective date and filing deadline

The DBD manual states that changes of directors must be registered within 14 days of the change. For resignation, preserve the written notice and evidence of when the company received it or when it takes effect, as applicable. Do not assume that the date of a new affidavit is the effective date of every underlying decision.

Prepare the decision and filing timetable before a director leaves the country or loses access to the signing process. Record the responsible filer, required identity documents and any authority-specific conditions. Registration does not replace the company’s own record of the appointment or resignation.

Build the document pack

• Current company affidavit, articles and existing signing-authority wording.
• Resignation notice or the proposed appointment/removal decision, with effective dates.
• Meeting notice, attendance, minutes and resolutions appropriate to the change.
• Identification and required particulars of incoming and signing directors.
• Relevant application and amendment forms, declarations and power of attorney where needed.
• Any sector-specific approval or additional evidence required by the registrar.

Check names, passport numbers, addresses and transliteration consistently across documents. Resolve differences before submitting. The DBD manual lists the registration and amendment documents; use the live portal’s current checklist rather than an old form bundle copied from an unrelated company.

Review signing authority as an operating control

Write the proposed authority precisely: which directors sign, whether a combination is required and whether the company seal is part of the registered wording. Consider the practical consequences for banking, contracts, tax submissions and urgent operational decisions. A familiar email signature is not evidence that someone has authority to bind the company.

The bank may require its own mandate, identification and approval process. Update those arrangements separately and obtain confirmation. Review procurement limits, payroll approvals and accounting sign-off so the change does not leave the business unable to authorise routine work.

Complete the management and access handover

Prepare an inventory of banking, accounting, government and business-system access. Transfer responsibility through the proper account-management process and remove access that is no longer authorised after continuity has been secured. Keep company records available to the company rather than only in a departing director’s personal email or device.

Reconcile director advances, loans, expense claims and amounts owed to or by the director. A resignation does not automatically settle those balances. Preserve supporting agreements and payment evidence, and assess any tax or employment consequences separately.

Connect the change to employment and company records

If the director is also an employee or a foreign national working in Thailand, review the consequences for employment, payroll, immigration and work permission with the responsible adviser. Changing a name on the company register does not automatically amend those records.

Use payroll administration, work-permit guidance and statutory records to plan the related steps. Keep a completion list showing which records are updated and which remain pending.

File through the current process

Use the current Ministry of Commerce announcement on DBD Biz Regist when planning the filing channel. It states that partnership and private limited company registration applications move to DBD Biz Regist from 1 November 2026. Older manuals may still show counter-filing arrangements. Check current identity, signing and evidence requirements before scheduling the transaction.

Corporate registration, accounting entries, tax notifications and bank mandates are separate workstreams. Agree which adviser prepares each document, who approves it and which authority receives it. The final file should include the signed approvals, submission evidence, updated records and any outstanding follow-up. A proposed change should not be treated as completed simply because a form has been drafted.

Frequently asked questions