Useful resources
Government links
Official Thai government portals our SME and foreign-business clients use most often.
Revenue Department
Income tax · VAT · withholding tax
rd.go.th ↗e-Filing (RD)
Online tax filing system
efiling.rd.go.th ↗DBD
Department of Business Development — registry
dbd.go.th ↗TFAC
Federation of Accounting Professions
tfac.or.th ↗Immigration Bureau
Visa · 90-day report · extensions
immigration.go.th ↗e-Work Permit
Department of Employment
doe.go.th ↗Customs Department
Import · export · tariff codes
customs.go.th ↗Social Security Office
SSO · workmen's compensation
sso.go.th ↗BOI Thailand
Investment incentives for foreign business
boi.go.th ↗