Business Services

Register a Company in Thailand 2026 — Thai Ltd, BOI & Treaty of Amity

Thai Limited, BOI-promoted, US Treaty of Amity, Representative Office or Branch — registered with the DBD and trading-ready, with tax ID, VAT, social security and corporate bank account included.

Setting up a company in Thailand involves the Department of Business Development (DBD), the Revenue Department (corporate tax ID and VAT), the Social Security Office and — for most foreign owners — a corporate bank account, a Foreign Business Licence or BOI promotion, and work-permit-grade capitalisation. We have set up hundreds of Thai companies from our Pattaya office over the last 20 years, from one-shareholder SMEs to BOI-promoted manufacturers on the Eastern Seaboard, and we handle every filing, translation and government appointment end-to-end. Updated June 2026 for the latest DBD fee schedule, BOI A1–A4 incentive bands and the 2024 foreign-sourced income remittance rules.

Options

Available packages

Thai Limited Company (SME, 1+ shareholder)

The default structure since the 2023 Civil & Commercial Code amendment allowing single-shareholder Thai Limiteds. 51% Thai ownership, full trading rights, fastest path to a bank account and VAT registration.

7–14 business days
From ฿25,000

BOI-Promoted Company (100% foreign-owned)

Board of Investment promotion for A1–A4 activities (tech, manufacturing, R&D, EEC industries). 100% foreign ownership, 3–8 year corporate tax holiday, land ownership rights and fast-tracked work permits via the One Stop Service Center.

60–120 business days
From ฿75,000

US Treaty of Amity Company

100% US ownership for qualifying activities under the 1966 Treaty. No FBL required, no BOI conditions, but excludes communications, transport, banking, land and natural resources. Requires US Commercial Service certification.

30–45 business days
From ฿85,000

Foreign Business Licence (FBL)

Ministry of Commerce licence for 100% foreign ownership in restricted List 2 or List 3 activities. Slow, discretionary, but the only route for non-BOI, non-Treaty foreign control of restricted services.

90–180 business days
From ฿120,000

Representative Office

Non-trading extension of a foreign parent. Sourcing, quality control, market research, reporting — five permitted activities only, no revenue in Thailand, 3M THB capital remitted over three years.

30–45 business days
From ฿80,000

Branch Office

Trading extension of a foreign parent under an FBL. Same legal personality as the parent (unlimited liability), 3M THB minimum capital. Used where a separate Thai entity is undesirable.

60–120 business days
From ฿110,000
Compare

Thai company structures compared (2026)

Side-by-side comparison of the five routes foreign owners actually choose: Thai Limited, BOI promotion, US Treaty of Amity, Foreign Business Licence, and Representative Office.

Thai Limited

Foreign ownership
≤ 49%
Minimum capital
฿15/share (฿2M per work permit)
Setup timeline
3–14 days
Government fees (approx.)
฿6,000–฿31,000
Corporate income tax
20% standard
Land ownership
If Thai-majority
Work permits
1 per ฿2M capital, 4 Thai:1 foreign
Ongoing reporting
DBD annual + audit
Best for
Local trading, JV, restaurants
Our fee (from)
฿25,000

BOI-Promoted

Foreign ownership
100%
Minimum capital
Set by BOI activity
Setup timeline
60–120 days
Government fees (approx.)
฿5,500 + BOI fees
Corporate income tax
0% for 3–8 years, then 20%
Land ownership
Yes (BOI grants)
Work permits
Fast-tracked via OSOS
Ongoing reporting
BOI annual + DBD + audit
Best for
Tech, manufacturing, EEC, R&D
Our fee (from)
฿75,000

Treaty of Amity

Foreign ownership
100% (US only)
Minimum capital
฿2M (฿3M services)
Setup timeline
30–45 days
Government fees (approx.)
฿5,500 + USCS cert
Corporate income tax
20% standard
Land ownership
Generally no
Work permits
1 per ฿2M, 4:1 ratio
Ongoing reporting
DBD annual + audit
Best for
US-owned services & consulting
Our fee (from)
฿85,000

FBL

Foreign ownership
100%
Minimum capital
฿3M per restricted activity
Setup timeline
90–180 days
Government fees (approx.)
฿5,500 + ฿20,000+
Corporate income tax
20% standard
Land ownership
No
Work permits
1 per ฿2M, 4:1 ratio
Ongoing reporting
DBD annual + MOC review
Best for
Restricted services with no BOI path
Our fee (from)
฿120,000

Rep Office

Foreign ownership
100% (no trading)
Minimum capital
฿3M over 3 years
Setup timeline
30–45 days
Government fees (approx.)
฿5,500
Corporate income tax
Exempt (no revenue)
Land ownership
No
Work permits
Up to 2 foreign reps
Ongoing reporting
Annual remittance report
Best for
Sourcing, QC, market research
Our fee (from)
฿80,000
Eligibility

Requirements

  • Three proposed company names in priority order (English + Thai transliteration)
  • At least one shareholder (post-2023 SME rules) — two or more for a standard Thai Limited
  • Registered capital sized to your plan — minimum 15 THB/share legally, but 2M THB fully paid-up per foreign work permit is the practical floor (3M THB for an FBL/Branch)
  • Thai-to-foreign employee ratio: 4:1 for each work-permit-holding director or employee
  • Registered office address in Thailand with lease or landlord consent letter and house registration (tabien baan)
  • At least one director with passport or Thai ID
  • Defined business objectives matching DBD activity codes — we provide vetted templates for trading, consulting, restaurants, real estate brokerage, IT and 30+ other categories
Checklist

Document checklist

  • 1Passport copies (bio page + current Thai visa) of every shareholder and director
  • 2Proof of address for each shareholder (utility bill or bank statement, < 3 months old)
  • 3Thai ID and tabien baan for Thai shareholders
  • 4Office lease agreement (1 year minimum) + landlord consent letter + landlord ID + tabien baan
  • 5Map showing office location signed by the landlord
  • 6Memorandum of Association (MOA) — we draft and file
  • 7Articles of Association — we draft and file
  • 8Statutory meeting minutes appointing directors and auditor
  • 9Shareholder declaration of funds (and bank reference for Thai shareholders if foreigners hold 40%+)
  • 10Power of attorney for our team to file at the DBD, Revenue Department and Social Security Office
How it works

Our process

  1. 1

    Week 1 — Free consultation & structure decision

    We confirm the right structure (Thai Ltd vs BOI vs Treaty vs FBL vs Rep Office) against your activity, ownership goals and work-permit needs, and quote a fixed all-in fee.

  2. 2

    Week 1 — Name reservation

    Three proposed names filed at the DBD via the e-Registration portal. Approval typically 1–2 business days; reserved name held for 30 days.

  3. 3

    Week 1–2 — MOA filing & capital registration

    Memorandum of Association filed with the DBD. Government fee is 50 THB per 100,000 THB of registered capital (capped at 25,000 THB) plus stamp duty.

  4. 4

    Week 2 — Statutory meeting

    Shareholders formally adopt the Articles of Association, appoint directors and auditor, and acknowledge capital paid up. We prepare minutes in Thai and English.

  5. 5

    Week 2 — Company registration with the DBD

    Final registration at the DBD. Government fee 5,500 THB. You receive the Certificate of Incorporation, company affidavit and shareholder list — the company is legally formed.

  6. 6

    Week 3 — Corporate tax ID & VAT

    Tax ID registered with the Revenue Department within 60 days of incorporation. VAT registration (mandatory at 1.8M THB/year turnover, optional below) typically takes 5–7 days and unlocks the input-VAT credit.

  7. 7

    Week 3 — Social Security registration

    Mandatory within 30 days of hiring the first employee. We file the SSO 1-01 form and handle the monthly contributions setup.

  8. 8

    Week 3–4 — Corporate bank account

    We accompany the director(s) to Bangkok Bank, Kasikorn, SCB or Krungsri with the full DBD set. Accounts for Thai-majority companies open same-day; foreign-majority and BOI companies usually need a bank interview and 5–10 days.

  9. 9

    Week 4+ — Work permits, BOI promotion, FBL (if applicable)

    Once the company is trading-ready, we file work permits at the Department of Employment (10 working days), submit the BOI application, or lodge the FBL with the Ministry of Commerce.

FAQ

Frequently asked questions

Can a foreigner own 100% of a Thai company?

Yes, but only through one of four routes: (1) BOI promotion for a qualifying A1–A4 activity, (2) US Treaty of Amity if all foreign shareholders are US citizens or US-incorporated entities, (3) a Foreign Business Licence from the Ministry of Commerce for restricted List 2/3 activities, or (4) the activity falls outside the Foreign Business Act restrictions altogether (most manufacturing and export). A standard Thai Limited otherwise requires at least 51% Thai shareholding. Nominee Thai shareholders are illegal under Section 36 of the FBA — we never set them up.

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What is the real minimum registered capital?

Legally 15 THB per shareholder. Practically: 2M THB fully paid-up per foreign work permit you intend to sponsor, 3M THB for a Branch or FBL, and the BOI sets its own minimum per activity (often 1M THB plus 25% equity). Capital does not need to be deposited in a Thai bank for Thai-majority companies; foreign-majority companies and FBLs require bank-certified remittance.

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How long does Thai company registration actually take?

A Thai Limited can be registered in 3 working days if shareholders are in Thailand and documents are pre-signed; 7–14 working days is realistic for most clients. BOI promotion takes 60–120 days from filing to certificate. FBLs take 90–180 days and are discretionary. Bank account opening adds 1–10 days depending on ownership structure.

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Do I need a Thai office address, and can it be a virtual office?

Yes — the DBD, Revenue Department, Social Security Office and bank all need a verifiable address with a lease and landlord consent letter. Virtual offices are accepted by the DBD for registration but rejected by the Revenue Department for VAT and by most banks for account opening. We recommend a real serviced office in Pattaya, Bangkok or Chonburi for any company that will trade, sponsor work permits or register for VAT.

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What does it actually cost in 2026? (government fees)

Name reservation: free. MOA capital registration: 50 THB per 100,000 THB of capital, capped at 25,000 THB. Company registration: 5,500 THB. Stamp duty: ~200 THB. VAT registration: free. Tax ID: free. SSO registration: free. Bank account: 500–2,000 THB. Notary/translation (per page): 500–800 THB. Our all-in fee from 25,000 THB covers everything above plus drafting, filings, two company stamps and accompaniment.

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Thai Ltd vs BOI vs Treaty of Amity — which should I pick?

Thai Limited if you have a Thai partner or your activity is unrestricted: cheapest, fastest, no ongoing reporting beyond standard accounting. BOI if your activity qualifies (tech, manufacturing, R&D, agribusiness, EEC): tax holidays and 100% ownership, but heavier reporting and a 1-year promotion review. Treaty of Amity if all shareholders are US: 100% ownership without BOI conditions, but excludes broadcasting, transport, banking, land and natural resources. FBL only if none of the above work. See our comparison table above.

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What ongoing compliance does a Thai company have?

Monthly: PND 1/3/53 withholding tax (by the 7th), PP30 VAT (by the 15th), SSO contributions (by the 15th). Annually: corporate tax (PND 50, within 150 days of year-end), audited financial statements lodged with the DBD (within 1 month of AGM), AGM (within 4 months of year-end). Late filing penalties start at 200 THB per form and escalate fast. We handle the full compliance package — see our Accounting service.

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Can I register a company while on a tourist visa or DTV?

Yes — registration is permitted on any legal status. Trading and being employed by the company requires a work permit, which requires a Non-B visa and the company to first be capitalised at 2M THB per work permit with the 4:1 Thai staff ratio met. We sequence the visa conversion alongside registration.

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Why use a Pattaya-based firm instead of a Bangkok one?

If your business is on the Eastern Seaboard (Pattaya, Chonburi, Rayong, EEC) every filing — DBD Chonburi branch, Chonburi Revenue, Chonburi Social Security, Chonburi Immigration, EEC Office — is local to us. We file in person on the day of submission, not by courier, which cuts a week off most timelines and avoids the rejection-by-post loop that catches out remote agents.

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Ready to start your business registration?

Visit our office on Siam Country Club Road, call us, or send a quick enquiry. We typically reply within 12–24 hours.