Work Permit + Social Security (SSO) Compliance
จัดการ Work Permit + ประกันสังคม (SSO) — Compliance รายเดือน · § Advisory
Quick Answer
Verify 4:1 Thai-foreign ratio · file WP-3/WP-1 · SSO within 30 days · monthly SPS 1-10 + 1-03.
Timeline: New WP 7 days · renewal 3 days · SSO registration 5–10 days · monthly filing by 15th.
Official fee: New WP THB 3,000/yr · renewal 3,000/yr · SSO no employer fee · 2%/mo penalty.
Legal Basis
Alien Employment Emergency Decree B.E. 2560 · fines THB 5k–50k/head + imprisonment · Social Security Act B.E. 2533 · employer contributes 5% (max 750/mo) + monthly SPS 1-10 filing · 2%/mo late penalty.
Who Needs This
Companies hiring 1+ expat · new SMEs (30-day registration) · HR outsourcing clients.
Required Documents
- Passport + visa
- 6-mo company affidavit
- Latest financial statement
- Thai job-posting proof.
Common Pitfalls
- Hiring expat before WP = THB 5k–50k fine + deportation.
- 4:1 ratio needs THB 2M capital per expat · BOI exempt.
- Skipped SPS 1-10 = 2%/mo penalty + 10-yr backfile requirement.
Typical Use-cases
- Tech startup hiring foreign CTO
- BOI factory hiring 20 expats
- Int'l school hiring 50 teachers.
FAQ
- Expats pay SSO?
- Yes · 5% same as Thais · refundable on repatriation (per agreement).
- WP tied to role?
- Yes · role/duty change requires WP-6 filing within 15 days.
- BOI exempt from 4:1?
- Exempt · but still file WP via e-Expert system.
Other Legal Services
Request a quote — Call 083-249-4999 · LINE @NYC168 · contact@ilc.ltd






