Formation

Register a company in Thailand

Limited companies, joint ventures, branch offices, representative offices. We scope the right structure, file with the DBD, and stay on as your corporate secretary so the company keeps running cleanly after day one.

The basics

What does registering a company in Thailand involve?

Registration creates a Thai legal entity that can trade, hire, open a bank account, and sponsor visas. The mechanics are well-trodden; the judgement is in choosing the structure and ownership split before you file.

Every entity is registered with the Department of Business Development under the Ministry of Commerce — and since mid-2025 those filings run through the DBD's online Biz Regist platform with electronic identity verification. The DBD's published service standard for registering a limited company is one hour at the counter, and Biz Regist approves the filing on payment of the fee; in our experience a standard Thai limited company is live in roughly 7–10 business days end to end, once name reservation, drafting and shareholder signing are counted in. A representative office takes about a month and a branch office around three. What sets the timeline and the cost is rarely the paperwork — it is whether foreign ownership, a Foreign Business License, BOI promotion, or sector licenses come into play.

What's required

What every registration needs

A handful of building blocks set up the entity; a second set of registrations keeps it compliant from day one.

To register the company

  • A local registered business address
  • At least one director
  • At least two shareholders — the statutory minimum since 2023
  • Registered capital suited to the structure and to any foreign work permits
  • A corporate bank account once the entity exists

Capital rules of thumb: a Thai-majority company with no foreign staff has no fixed minimum; a company sponsoring foreign work permits needs about THB 2 million of capital per foreigner (THB 1 million if the foreigner is married to a Thai); a foreign-majority company in a restricted activity starts at THB 3 million.

Registrations & ongoing obligations

  • Tax ID, and VAT registration — mandatory once turnover passes THB 1.8 million a year, or when sponsoring foreign staff (depending on the province)
  • Social-security registration for employees
  • Any sector-specific business licenses
  • A Foreign Business License where the company is foreign-majority in a restricted activity
  • Monthly and annual bookkeeping, tax and withholding filings, and the annual audit
100% foreign ownership

Routes to full control as a foreigner

Foreigners can own 100% of a Thai company either by operating in an unrestricted activity or by using a specific structure or state incentive.

BOI promotion Popular

A company operating in an activity promoted by the Board of Investment. Alongside full ownership it can draw on tax incentives and other concessions.

US Treaty of Amity

US citizens can hold 100% of a Thai company under the bilateral Treaty of Amity between the United States and Thailand.

Foreign Business License

A limited company can reach full foreign ownership by securing a Foreign Business License — though its activities then remain bounded by the Foreign Business Act.

Representative, branch & regional offices

Other registrations for foreign-registered companies are possible, each with its own limits on operations and on earning revenue.

Export company

A limited company whose sole purpose is to export tangible goods or materials out of Thailand.

Manufacturing company

A limited company whose sole purpose is to manufacture goods and sell them outside Thailand.

The procedure

The registration process, step by step

From reserving the name to switching on visas and work permits — the official sequence a new company follows.

Reserve the company name

The name is searched and reserved with the DBD; the reservation holds for 30 days.

Prepare, sign & file

We gather the details, draft the memorandum and articles, collect signatures, and submit to the DBD.

Company registration

The DBD issues the registration documents and the company/tax ID; timing depends on the specifics of the business.

Open a corporate bank account

Bank, branch, account type, and authorised signatories are settled and the account opened.

VAT & Social Security applications

VAT is registered where foreign staff are employed or turnover exceeds THB 1.8 million; employees are enrolled with the Social Security Office.

Visas & work permits

Non-B visas and work permits are arranged for foreign directors and staff, with the visa extended to one year once the work permit is granted.

How Khonsu helps

How we help you incorporate

In our experience a company is live within about 7–10 business days of the documents being ready — the DBD registers the company itself in about an hour, so the rest is preparation. The harder question is which structure — and the answer changes how the business can be owned, taxed, and operated for years afterwards.

We start every engagement with a 30-minute conversation about what you actually plan to do — the activity, the ownership split between Thai and foreign shareholders, where the customers and revenue come from, and what visas the founders need. The right answer is sometimes a standard Thai Limited Company, sometimes a BOI-promoted entity, sometimes a Treaty of Amity company for US citizens, and occasionally a branch office or representative office.

Once the structure is locked, the incorporation itself is procedural. We prepare the name reservation, the Memorandum of Association, the statutory meeting, share allocation and the DBD filing, file the VAT application where applicable, and arrange the corporate seal. The DBD and the Revenue Department examine each filing and issue the documents. Bank account opening — historically the slowest step — is the one part we cannot guarantee, but we walk you through it with the right introductions.

What we do

  • Structure consultation — Thai Limited, BOI, Treaty of Amity, FBL, branch, or representative office
  • Name reservation with the DBD (up to three rounds)
  • Drafting the Memorandum of Association and Articles of Association
  • Statutory meeting of promoters and minutes
  • Share allocation and capital structuring
  • DBD registration and certificate issuance
  • Applications filed for tax ID, VAT, and SSO where applicable
  • Corporate seal and supporting documents
  • Bank account opening introductions and assistance
  • Optional add-ons: BOI application, FBL application, work permits, visas

What you get

  • Full set of documents in Thai
  • One named lawyer from scope to incorporation
  • Post-incorporation corporate secretarial available
  • VAT, SSO, and tax registrations included where required

How we work

Discovery call

A 30-minute conversation to understand the business, ownership, and visa needs. We propose a structure and confirm the scope.

Document collection

We send a tailored checklist — typically passport copies, shareholder details, registered address, and capital allocation.

Name reservation & drafting

We reserve the company name with the DBD and draft the Memorandum and Articles in Thai and English.

Statutory meeting & registration

Promoter meeting, signing, and DBD registration. The DBD certificate issues within a few business days.

Post-incorporation setup

Tax ID, VAT and SSO applications filed; corporate seal and bank introduction. Hand-over to corporate secretarial for ongoing compliance.

FAQ

Frequently asked

How long does company registration take?

In our experience a standard Thai Limited Company is registered within 7–10 business days of our having the documents — the DBD's own service standard for the registration step is one hour, so the time goes on preparation, not the registrar. BOI applications and Foreign Business Licenses take longer — typically 30–90 days depending on category.

Can a foreigner own 100% of a Thai company?

Only with BOI promotion, a Foreign Business License, Treaty of Amity protection (US citizens), or in activities not restricted under the Foreign Business Act. Otherwise the standard ratio is 49% foreign / 51% Thai shareholding. We help you choose the right route during the discovery call.

Do you arrange the bank account?

We make the introductions, prepare the supporting documents, and accompany you to the bank. The account itself is the bank's decision, and since 2025 it has become slower and more selective — in our experience usually around a month for a newly registered company, sometimes longer (see the next question).

How hard is it to open a corporate bank account in 2026?

Harder than it used to be, but very doable with the right preparation. Following the Bank of Thailand's tightening of AML and KYC rules — a response to fraudulent 'mule accounts' — banks now apply tighter KYC and source-of-funds checks to new corporate accounts, and generally want to see a properly registered, genuinely operating Thai company before they open one. This sits alongside the DBD source-of-funds rules, now in Central Registrar Order No. 2/2569 and in force from 1 August 2026. No bank publishes a processing time; in our experience you should allow roughly one month from a complete application, and some banks take longer. The application is made at a branch in Thailand by an authorised person and cannot be done online or from overseas; whether every authorised person must attend depends on the bank and on who will sign for payments and withdrawals. Companies with directors or shareholders from sanctioned or high-risk jurisdictions can face significantly more scrutiny, and occasionally refusal. Banks retain full discretion, so outcomes vary by branch. We prepare your documents, brief you on each bank's current stance, and accompany you to maximise your chances of a smooth opening. Information current as of August 2026 — please confirm the latest position with us.

Which bank do foreign-owned companies usually open with?

Bangkok Bank, Kasikorn (KBank), SCB, and Krungsri are the common choices. We match the bank and branch to your business and steer you toward those that have handled similar foreign-owned accounts smoothly, rather than leaving you to find that out at the counter.

Does a director have to be in Thailand to open the account?

Someone has to. The application is made at a branch by an authorised person with original identification; it cannot be done online or from abroad. What follows depends on the role and differs by bank — Kasikornbank, for example, lets an authorised person who will not sign for payments or withdrawals confirm their identity through K PLUS within 15 days of that branch request, while anyone who will sign for payments or withdrawals must attend a branch inside the same 15 days for their specimen signature. So plan on everyone who signs for money appearing in person. We book the appointment and go with you.

What does the bank need to see in 2026?

The company affidavit issued within the last 30 days, the MOA and shareholder list (Bor Or Jor 5), a board resolution naming the signatories, the corporate seal, and each signatory's passport. Under tighter Bank of Thailand and AMLO checks, banks now also ask about the source of funds, expected turnover, and the nature of the business before approving — so we prepare those answers with you in advance.

Can we open the account before the directors' work permits are issued?

Usually yes — the account can be opened on the registered company and the signatory's passport, often while they are still on a Non-B visa, with the work permit following. A few branches prefer to see the work permit first, so we confirm the requirement with the chosen bank before booking the appointment.

Do you handle the work permit for the directors at the same time?

Yes. Once the company is registered and the VAT registration is complete (depending on the province), we can begin the work permit and Non-B visa applications. The two flows are usually scoped together from the start.

What about the 2026 DBD source-of-funds rules?

Since 1 August 2026, under Central Registrar Order No. 2/2569, the Thai shareholders must evidence the source of their subscription funds on the incorporations the DBD has singled out: where foreign shareholders hold less than half the capital (the standard 49/51 structure), and where there are no foreign shareholders but a foreigner is a director with sole or mandatory joint signing authority. In practice that means around three months of bank statements from the account that actually paid for the shares, showing the matching transfer, a prescribed investment explanation letter, and a statement for the director's account that received the payment. Amendments are covered separately and more lightly — a covered amendment calls for an investment confirmation letter, and the fuller evidence only where the company was registered on or after 1 August 2026 and files that amendment within a year of registration. The Order replaced Nos. 2/2568 and 1/2569. We prepare and handle this capital-substantiation documentation as part of every such incorporation, so your filing meets the current requirement.

Reviewed by the Khonsu Legal team · 12 August 2026

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