Core Service · US–Thai Treaty of Amity Certification
US–Thai Treaty of Amity Certification by Licensed Professionals
Certify a Thai company under the 1966 US–Thai Treaty of Amity and Economic Relations, allowing US nationals to hold 100 % of businesses otherwise reserved for Thais.
The 1966 Treaty of Amity is the sole exception permitting US nationals to conduct business in Thailand in almost every sector without a standard FBL, except six restricted activities (communications, land/water transport, land holding, agricultural commodity trading, banking/fiduciary, and domestic natural-resource exploitation). NYC Visa Legal secures the Amity Letter from the US Commercial Service, redrafts the MOA with the Amity clause, files Form Sor Or 2 with DBD, and liaises with AMCHAM and the US Embassy end-to-end — 30–60 days, Quoted per case.
Department of Business Development + US Embassy Bangkok (US Commercial Service)◊
Tailored quotation
สอบถามเจ้าหน้าที่
Turnaround Time
30 – 60 business days
Service Area
77 provinces · 50 Bangkok districts
Languages
ไทย · English · 中文 · 日本語
Contact
083-249-4999 · LINE @NYCV
HowTo · ขั้นตอน
How to obtain US–Thai Treaty of Amity Certification
Standard procedure — we handle every step on your behalf, no need to travel.
⏱ ใช้เวลาทั้งสิ้น 30 – 60 business days💰 งบประมาณ สอบถามเจ้าหน้าที่
1
Consult with our team
Call 083-249-4999 or LINE @NYCV. Send document details and destination country. Staff reply within 2 hours during business hours (Mon–Sat 09:00–18:00 Bangkok time); the quotation follows scope review.
⏱ 30 min
2
Prepare original documents
We send a checklist via LINE/email. Drop off at NYC Visa offices or use nationwide Kerry/Flash courier pickup.
⏱ 1 day
3
Process US–Thai Treaty of Amity Certification
We prepare the application and liaise with Department of Business Development + US Embassy Bangkok (US Commercial Service) under its published procedure, updating you when the status changes. The decision rests with the authority.
⏱ 30 – 60 business days
4
Accuracy check before handover
We check names, document numbers, dates, seals and signatures against the originals before handover.
⏱ 1 hr
5
Deliver completed documents
Collect at our only office, NYC Visa head office Ladprao 95, Bangkok, or agree a delivery method with staff; delivery cost is stated in the quotation.
⏱ 1 day💰 Free in BKK
Clients outside Bangkok
US–Thai Treaty of Amity Certification · 77 provinces
We work from a single head office at Ladprao 95, Bangkok. Clients elsewhere send details online and agree how originals are sent; some steps may still require the applicant to appear in person.
Frequently Asked Questions · US–Thai Treaty of Amity Certification
How much does US–Thai Treaty of Amity Certification cost?
Contact staff for a tailored quotation based on documents, language and recipient requirements. Official authority fees are separate from company service fees.
How long does US–Thai Treaty of Amity Certification take?
Standard turnaround is 30 – 60 business days. Express service can cut this in half (additional fees apply).
Do I have to visit the office?
No — NYC Visa picks up/delivers nationwide via Kerry/Flash/EMS. You only need to send a copy of your ID and a Power of Attorney.
What document types do you handle?
We cover 12+ document types: US passport / US corporate certificate, US Commercial Service Amity Letter, MOA / AOA with Amity clause, Shareholders list (majority US), Director appointment with US nationality proof, US Embassy notarization and more. Contact 083-249-4999 for special cases.
Which authority certifies US–Thai Treaty of Amity Certification?
Department of Business Development + US Embassy Bangkok (US Commercial Service) is the official body. NYC Visa acts as your authorized representative per government procedure.
Do you serve other provinces or overseas clients?
Yes — 77 Thai provinces plus 60+ countries internationally. Contact LINE @NYCT or WhatsApp +66815620444.
Where can the certified document be used?
Worldwide. For Hague Convention countries, Apostille applies (Thailand is not yet a party). For others, MFA Legalization + destination embassy procedure applies.
Is there a guarantee?
No. NYC Visa checks every file before delivery, but does not offer refunds; the final decision rests with the receiving authority.
How can I pay?
Bank transfer (KBank/SCB/BBL), Visa/Master, PromptPay, or cash at our office. Tax invoice in your company name is available.
Work permits, BOI/IEAT privileges, Treaty of Amity and APEC card — practical answers
First-party answers on Thai work authorisation: the standard Department of Employment route, BOI and IEAT channels for skilled experts, US company rights under the Treaty of Amity, and the APEC Business Travel Card for Thai nationals — including which supporting documents must be translated and legalised first. (19+ search topics covered)
Can dependants of a permit holder work?
Dependant status does not create work rights. A dependant who wants to work needs their own employer and their own work permit under the normal conditions. Family documents such as marriage and birth certificates usually need translation and legalisation for both immigration and labour filings.
How are foreign degrees and experience letters used for a Thai work permit?
They are normally authenticated by the competent authority in the issuing country and by the Royal Thai Embassy there, or by apostille once the Convention enters into force for Thailand on 28 February 2027 where accepted, then translated into Thai and legalised by the Department of Consular Affairs. Experience letters should state the position, exact dates, duties and the issuer's contact details, because verification enquiries do occur. Confirm the document list with the Department of Employment or the receiving office before preparing the file.
How do we get exact fees and timelines?
Processing times and official fees vary by application type, receiving office, document completeness and local queues, so fixed figures on a web page would be misleading. Our team quotes case by case after reviewing the actual documents — contact us by phone, LINE or email.
Which comes first, the visa or the work permit?
In the usual sequence, the foreign national first holds a non-immigrant visa consistent with the intended employment, then applies for a work permit under the law on managing the employment of foreign workers, administered by the Department of Employment. Continued stay afterwards is decided separately by the Immigration Bureau. The three systems are distinct but interlocking, and a gap in one blocks the next.
Can I keep my work permit after changing employer?
A work permit is tied to the employer and the described work. Changing employer or the nature of the work requires notification or a fresh authorisation within the timeframe set by the Department of Employment's rules. Working for a new employer before that is completed falls outside the scope of the permission and exposes both employee and employer to penalties.
Do I need a work permit for remote work for a foreign company?
This is fact-specific. The law addresses work performed within the Kingdom rather than only the location of the payer. Visas designed for remote workers carry their own conditions and do not automatically confer the right to work for a business in Thailand. Where Thai clients or a Thai entity become involved, obtain advice before starting to avoid regulatory exposure.
What must an employer prepare for a first foreign hire?
Typically current company records — registration certificate, shareholder list, financial statements and tax filings — together with social security registration for employees and an employment contract whose job title and scope match the permit sought. Ratio requirements for Thai employees or minimum registered capital may apply under the rules in force, so the corporate structure should be reviewed before filing begins.
Can dependants of a work-permit holder work?
Permission to stay as a dependant and permission to work are separate matters. Dependants admitted on the basis of the principal's status do not gain an automatic right to work; they need an employer and their own work permit application under the normal criteria. Children entering school require a separate process, including certified translations of academic records.
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Need your documents reviewed or your case assessed? Ask our team by phone, LINE, or email. We reply within two hours during business hours (Mon–Sat 9:00–18:00 ICT).
Case preparation desk at our Bangkok office — Service illustration; requirements depend on the document and receiving authority
Service Playbook
Thai work permit — company-side and employee-side documents
Work permits are issued by the Department of Employment and are tied to the employer, position and workplace. Changing job, role or location requires a new filing.
Documents to prepare
• Company side: current affidavit, shareholder list, financial statements, social security filings
• Employee side: passport, the correct visa category, and the required medical certificate
• Degrees and experience letters, legalised at source and translated for Thai use
• Employment contract and job description
• Workplace map and photographs where requested
• Power of attorney for the company's filing agent
Step-by-step process
1. Check company and role eligibility — Registered capital, Thai-to-foreign staff ratio and reserved occupations are verified first.
2. Prepare foreign documents — Qualifications and experience letters must be legalised abroad and translated before filing.
3. File the application — Through the Department of Employment, or a dedicated channel such as the BOI One Stop Service.
4. Collect and comply — Work only within the stated role and location, and renew before expiry.
Pitfalls and rejection causes
• Working outside the stated role or location breaches the permit conditions.
• A permit belongs to the employer — it cannot follow you to a new company.
• Visa and permit expire on different dates; track both.
• Company documents older than the accepted window must be reissued.
Tips from our team
• Set reminders at least 45 days before either expiry date.
• Maintain a standing company document pack to speed up future filings.
• BOI-promoted companies should use the dedicated channel to cut steps.
Prefer not to handle the queues yourself, or worried about a rejection? Send us photos of your documents for a free pre-check. We handle the full chain — obtaining certified copies, translation, certification and submission — and keep you updated at each step. Reach us on LINE, phone or email during business hours.
Route Comparison
Comparing Thai work permit routes
Different employer types use different channels, and each channel pairs with a different visa category.
Route
When to use
Certifying authority
Approx. duration
Rejection risk
Standard filing with the Department of Employment
The employer is an ordinary Thai company without BOI promotion
Department of Employment, Ministry of Labour
Variable, driven by how complete the employer's file is
Thai-to-foreign staff ratios and registered capital not meeting thresholds is the common refusal ground
BOI-promoted company channel
The employer holds a promotion certificate and the position is on the approved list
BOI together with the Immigration Bureau and Department of Employment
Generally faster than the standard route, still variable
A position that differs from the approved list requires an amendment first
Conditional or short-term work authorisation
Short assignments or job types covered by specific published rules
Department of Employment under the notification in force
Shorter than a full application
Working beyond the authorised scope is an offence even when a permit exists
Timelines above are practical estimates from live casework and can change with each authority's policy; confirm with the receiving authority before booking travel. If you would rather not test routes by trial and error, our advisers can assess which route fits your case.
Advisory Service
We do not just process documents — we advise you through the whole case
Our team has worked on cross-border documents, certified translation and government liaison since 2015. Most rejections we see are not caused by missing paperwork but by choosing the wrong route on day one, so we always start with a case assessment.
Route assessment
We look at your destination, purpose and deadline, then tell you which certification route applies — and which steps you can skip.
Pre-submission review
Name spelling, consistency across documents, document age and translation format are checked before anything reaches a counter.
Timeline planning
We sequence the steps around your appointment or travel date and flag bottlenecks in advance.
Rejection recovery
We read the refusal reasons, identify the underlying cause, and plan a resubmission that answers what the authority asked for.
Rather not learn by trial and error? Send your case details and document photos for a review — reach us on LINE, phone or email during business hours.
Practical Q&A
Practical questions · Near me / DIY / Required documents
Is there a service point near me?
Our only office is at Ladprao 95, Wang Thonglang, Bangkok. Clients elsewhere can send scans through LINE @nycvisa for an initial scope review, then agree how to provide originals if required. Contact us before visiting or sending documents.
Can I handle this myself?
Many steps can be done personally under the relevant authority's rules. What usually costs time is the wrong sequence, a translation format that does not match the requirement, or a source document version the recipient will not accept. Check the destination checklist before starting and ask us if anything is unclear.
Which documents should I prepare?
Generally the original document from the competent authority, the owner's ID or passport, a translation in the format the destination requires, and a power of attorney if someone acts for you. Details vary by service type — ask our team for a case-specific checklist.
Practical advice & cautions
Business, tax and legal work: advice and cautions
Before you start
Keep complete source documents
Tax invoices, receipts and contracts should be filed systematically per accounting period to support any later audit.
Use bilingual contracts with a governing version
Cross-border contracts should state which language version prevails and how disputes are resolved.
Check for sector-specific licences
Some activities need a licence from a specialist regulator before operating. Verify at the planning stage.
Assess tax residence before planning
Liability depends on tax residence and any applicable double-tax agreement; evaluate before moving funds or receiving cross-border income.
Common reasons documents get rejected
Improper nominee shareholding
Using nominees to bypass foreign business restrictions carries serious legal risk. Structure the company lawfully from the outset.
Failing to file changes
Changes of director, address or capital must be filed within the statutory period; omissions create mismatches that block other applications.
Treating a contract translation as legal advice
A translation conveys wording but does not assess legal risk. Have a lawyer review the substance before signing.
Wills that ignore cross-border assets
Assets in different countries may fall under different succession rules; ensure multiple wills do not contradict each other.
Requirements differ by authority and destination country and can change. Confirm current conditions with the receiving authority, or ask our team by phone, LINE or email.
Related services
What clients usually handle next
One document set often moves through several stages — translation, notarial certification, legalization and finally a visa filing. The links below follow that real sequence.
Authority requirements change. Verify with the receiving authority before filing, or ask our team by phone, LINE or email.
Choosing a document translation provider in Thailand
Pick a translation provider by the destination, not by turnaround alone. If the file goes to the Thai Department of Consular Affairs or an embassy, the translator must know the format that office accepts, not just the meaning. Verify three things: the certifier is named and identifiable, the destination accepts that certification format, and names, dates and document numbers match the passport character for character.
How to evaluate a provider
The certifier is named and identifiable — Consular offices and embassies check who certified the translation, not only the wording.
Knows the format the destination accepts — Each embassy differs: attached source copy, letterhead, or prior consular legalization.
Character-level verification — Mismatched name spelling and dates against the passport is the most common rejection cause.
Owns corrections after rejection — Submissions run on appointment dates; slow corrections cost the applicant the slot.
Documented custody of originals — Some civil registry documents are hard to reissue, so intake and return must be traceable.
Questions to ask before you commit
How can I track status, and who physically holds the original documents?
Who will certify this translation, and will the certifier be named on the document?
Does my destination require consular or embassy legalization afterwards?
How many working days does it actually take, counted from a complete file?
If the receiving authority rejects or asks for changes, do you correct it, and under what terms?
Your options, and who each suits
Option
Best for
What to know
Freelance translator
Informal use where no authority certification is required
Many embassies will not accept an uncertified translation.
Translation agency with certification
Visa, study and civil registry filings
Confirm the agency also handles the legalization step if the destination requires it.
End-to-end provider (translate + legalize)
Files with a fixed appointment deadline
Ask which steps are in-house and which are subcontracted.
FAQ on choosing a provider
Which translation service is recommended for embassy submissions?
Choose one that names the certifier on the translation, knows the exact format your embassy accepts, and verifies names and dates against the passport before certifying. Ask whether they also handle consular legalization so the file does not stall between two vendors.
Does a cheaper translation get rejected more often?
Rejection correlates with format and verification, not price. A translation is rejected when the certifier cannot be identified, the layout does not match the receiving office's requirement, or a name or date differs from the passport.
Information on this page references the official publications below. Requirements can change — always verify with the competent authority before filing.
