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 since 2010, from two-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.
Available packages
Thai Limited Company (SME, 2+ shareholders)
The standard structure under the Civil and Commercial Code, with a minimum of 2 shareholders. Where Thai-majority ownership is required, the shareholding must be genuine and compliant with the Foreign Business Act.
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.
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.
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.
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.
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.
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
- Typically 7–14 days
- Core DBD registration fees
- ฿500 MOA + ฿5,000 establishment
- Corporate income tax
- 20% standard
- Land ownership
- If Thai-majority
- Work permits (extension-of-stay criteria)
- ฿2M paid-up per foreigner, 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
- Core DBD registration fees
- ฿500 MOA + ฿5,000 establishment; BOI costs vary
- Corporate income tax
- 0% for 3–8 years, then 20%
- Land ownership
- Yes (BOI grants)
- Work permits (extension-of-stay criteria)
- 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
- Core DBD registration fees
- ฿500 MOA + ฿5,000 establishment; US certification extra
- Corporate income tax
- 20% standard
- Land ownership
- Generally no
- Work permits (extension-of-stay criteria)
- ฿2M per foreigner, 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
- Core DBD registration fees
- ฿500 MOA + ฿5,000 establishment; FBL costs vary
- Corporate income tax
- 20% standard
- Land ownership
- No
- Work permits (extension-of-stay criteria)
- ฿2M per foreigner, 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
- Core DBD registration fees
- Authority fees vary by filing
- Corporate income tax
- Exempt (no revenue)
- Land ownership
- No
- Work permits (extension-of-stay criteria)
- Up to 2 foreign reps, ratio relaxed to 1:1
- Ongoing reporting
- Annual remittance report
- Best for
- Sourcing, QC, market research
- Our fee (from)
- ฿80,000
| Requirement | Thai Limited | BOI-Promoted | Treaty of Amity | FBL | Rep Office |
|---|---|---|---|---|---|
| Foreign ownership | ≤ 49% | 100% | 100% (US only) | 100% | 100% (no trading) |
| Minimum capital | ฿15/share (฿2M per work permit) | Set by BOI activity | ฿2M (฿3M services) | ฿3M per restricted activity | ฿3M over 3 years |
| Setup timeline | Typically 7–14 days | 60–120 days | 30–45 days | 90–180 days | 30–45 days |
| Core DBD registration fees | ฿500 MOA + ฿5,000 establishment | ฿500 MOA + ฿5,000 establishment; BOI costs vary | ฿500 MOA + ฿5,000 establishment; US certification extra | ฿500 MOA + ฿5,000 establishment; FBL costs vary | Authority fees vary by filing |
| Corporate income tax | 20% standard | 0% for 3–8 years, then 20% | 20% standard | 20% standard | Exempt (no revenue) |
| Land ownership | If Thai-majority | Yes (BOI grants) | Generally no | No | No |
| Work permits (extension-of-stay criteria) | ฿2M paid-up per foreigner, 4 Thai:1 foreign | Fast-tracked via OSOS | ฿2M per foreigner, 4:1 ratio | ฿2M per foreigner, 4:1 ratio | Up to 2 foreign reps, ratio relaxed to 1:1 |
| Ongoing reporting | DBD annual + audit | BOI annual + DBD + audit | DBD annual + audit | DBD annual + MOC review | Annual remittance report |
| Best for | Local trading, JV, restaurants | Tech, manufacturing, EEC, R&D | US-owned services & consulting | Restricted services with no BOI path | Sourcing, QC, market research |
| Our fee (from) | ฿25,000 | ฿75,000 | ฿85,000 | ฿120,000 | ฿80,000 |
Requirements
- Three proposed company names in priority order (English + Thai transliteration)
- At least 2 shareholders for an ordinary Thai Limited Company
- Registered capital sized to your plan — minimum 15 THB/share legally; for an ordinary business extension of stay, Immigration generally requires 2M THB fully paid-up per foreigner (3M THB for an FBL/Branch)
- Thai-to-foreign employee ratio of 4:1 per foreigner under Immigration's business extension-of-stay criteria, relaxed to 1:1 for specified categories such as representative, regional and branch offices
- 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
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
Our process
- 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
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
Week 1–2 — MOA filing & capital registration
Memorandum of Association filed with the DBD. The DBD registration fee for the Memorandum is a flat 500 THB, plus stamp duty.
- 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
Week 2 — Company registration with the DBD
Final establishment registration at the DBD. Government fee 5,000 THB. You receive the Certificate of Incorporation, company affidavit and shareholder list — the company is legally formed.
- 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
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
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
Week 4+ — Work permits, BOI promotion, FBL (if applicable)
Once the company is trading-ready and all required documents are complete, we file work permits at the Department of Employment, typically taking approximately 10 working days, submit the BOI application, or lodge the FBL with the Ministry of Commerce. Timings remain subject to the relevant authority and any requests for additional documents.
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.
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.
How long does Thai company registration actually take?
A Thai Limited is typically registered within 7–14 working days once shareholders are confirmed and all required documents are complete. Timing remains subject to DBD processing, document readiness and the circumstances of the case. BOI promotion typically takes 60–120 days from filing to certificate. FBLs typically take 90–180 days and are discretionary. Bank account opening can add 1–10 days depending on ownership structure.
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.
What does it actually cost in 2026? (government fees)
Name reservation: free. Memorandum of Association registration: 500 THB. Limited company establishment registration: 5,000 THB. Certificate: 40 THB per item. Registration certificate: 100 THB per copy. Certified copies of registration documents: 50 THB per page. 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.
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.
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.
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 and a Non-B visa. For the related ordinary business extension of stay, Immigration criteria generally require at least 2M THB paid-up capital per foreigner and a ratio of 1 foreign employee to 4 permanent Thai employees. Specified categories, including representative, regional and overseas-company branch offices, may qualify for relaxed criteria. We sequence the visa conversion alongside registration.
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.
How to Register a Thai Limited Company
Two-shareholder structure, capital requirements, work-permit ratios, DBD timeline and the real cost of full setup vs. nominee structures.
Read the business guide (9 min read)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.
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