Address and Setup for Foreign Companies and Representative Offices

ที่ตั้งสำนักงานสำหรับบริษัทต่างชาติและสำนักงานผู้แทน · § Foreign
Quick answer
Review the Thai subsidiary, branch or representative-office route before selecting an address. Check parent-company document requirements and request a quotation.
Timeline: Starts with notarising and translating parent-company documents; setup timing depends on required licences and authority review
Who this is for
- Foreign companies testing the market before full investment
- Groups incorporating a Thai subsidiary for regional clients
- Investors preparing investment-promotion or Foreign Business Licence applications
Documents required
- Parent-company certificate, legalised and translated into Thai
- Power of attorney to the Thailand representative
- Board resolution approving the Thai establishment
- Passports of foreign directors and shareholders

Three ways a foreign company enters Thailand
Foreign groups usually choose between a Thai limited company, a representative office and a branch of the foreign company. Trading rights, licensing and tax exposure differ sharply, and switching later means rebuilding the structure.
A Thai limited company trades and issues tax invoices freely. A representative office may only carry out non-revenue activities such as sourcing, quality inspection and market reporting. A branch may trade but exposes the parent to Thai taxation on that activity.
Parent-company documents pass three stages
- Certify at origin: Notary or registry certification of the corporate documents
- Apostille or Thai embassy legalisation: As of 9 October 2026, the Convention is not yet in force for Thailand (scheduled for 28 February 2027). Do not assume an origin-country Apostille replaces Thai embassy legalisation; confirm the receiving authority’s requirements
- Translate and certify in Thailand: Confirm which documents, Thai translations and certification level the DBD or receiving authority requires; not every file follows an identical chain
Common mistakes and how we avoid them
More questions we are asked
- Can a representative office sell in Thailand?
- No. It is limited to non-revenue activities such as sourcing, quality control and reporting to the parent. Selling requires a company or a branch.
- How long does the whole process take?
- It is driven mainly by how quickly the parent company's documents are certified and legalised abroad, then by any licence the Thai entity needs. We map the steps with you before starting.
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Check the receiving authority’s requirements
Check incorporation and foreign-business rules with the DBD, and tax requirements with the Revenue Department. For parent-company documents issued abroad, confirm legalisation with the Thai embassy in the issuing country and the Department of Consular Affairs before dispatching originals.
Ask our team for a quotation — Call 083-2494999 · LINE @NYC168 · contact@nyclegal.co.th
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Official sources
The information on this page follows the official sources below. Always check the latest version before you file.
- Department of Consular Affairs — document legalisation— Ministry of Foreign Affairs
- Immigration Bureau — visas, 90-day reporting, TM.30— Immigration Bureau
- Department of Provincial Administration — civil & family registration— Department of Provincial Administration
- Lawyers Council of Thailand — Notarial Services Attorneys— Lawyers Council of Thailand
- Office of the Council of State — Thai law database— Office of the Council of State
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Contact us by phone, LINE or email for a free initial enquiry and a quote after document review. Timing depends on the work and relevant authorities.
General information before proceeding: Confirm current requirements with the receiving authority before using your documents. This page is not a legal opinion for your individual case — meet the team · editorial policy
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