หนังสือรับรองผู้ประกันตน ม.40 (อาชีพอิสระ) SSO-M40

A working guide to Work Authorization Letters in Thailand

Work Authorization Letters is treated as an evidence file, not a translation ticket. Our workflow begins with a documentary audit against the receiving authority's current rulebook — the same rulebook Thai MFA, foreign embassies in Bangkok, and Thai Immigration Bureau counters use — so acceptance criteria are baked in before any drafting starts. Every Work Authorization Letters matter is scoped by a senior specialist on LINE Official @NAATI or by email at ilc@thainotary.co.th before any file moves.

How the workflow runs end-to-end

The typical execution path is: intake → audit → certified translation → attorney jurat → MFA Chaeng Watthana submission → MFA collection → destination embassy submission → embassy collection → courier dispatch. Each checkpoint triggers a written status update on the client's chosen channel.

Who this service is for

Overseas law firms use the same intake as domestic clients but receive a bilingual case brief in English at every checkpoint, so partners in London, New York, Sydney, Hong Kong, or Frankfurt can bill and update their own end clients without needing a Thai-language intermediary on each thread.

Coverage, fees, and turnaround

Government stamps and embassy fees are paid on the client's behalf against an itemised invoice with the official government receipts attached — nothing is marked up beyond the disclosed service fee, and refunds of any unused pass-through cost are automatic at file close.

Quality assurance and confidentiality

Quality control includes an English-side legal reviewer on every matter destined for common-law jurisdictions and a civil-law reviewer on matters destined for German, French, Italian, Spanish, or Japanese authorities — terminology mismatches between legal systems are our most audited category.

Start your Work Authorization Letters matter today

Reach ILC on LINE Official @NAATI, email ilc@thainotary.co.th, or phone 080-5578887. Office hours are Monday to Sunday, 08:30 to 20:00 Bangkok time. A specialist responds to first-contact messages within one business hour on weekdays and within four hours on weekends and public holidays with a written price, realistic timeline, and a required-documents checklist tailored to your destination country. There is no charge for the initial consultation, and no obligation to proceed after receiving the quote — ILCearns repeat business by delivering the first Work Authorization Letters matter cleanly and on time, not by locking clients into open-ended retainers.