Thailand business reference

Glossary

Core business, tax, customs and registry terms used across the portal.

AHTNASEAN Harmonised Tariff Nomenclature used in customs classification workflows.BOIBoard of Investment promotion layer used for eligible activities and incentive analysis.Foreign Business ActThe legal layer used to review whether foreign participation is restricted or requires a separate route.Social Security OfficeAuthority and contribution framework for payroll-linked social security obligations.TINTax Identification Number format used in tax and compliance workflows.TSICThailand Standard Industrial Classification, the core activity classification used across Thai business reference workflows.VATValue Added Tax in Thailand, usually reviewed together with thresholds and exemptions.WHTWithholding tax layer applied to selected payments rather than a flat rule for every invoice.

Core business, tax, customs and registry terms used across the portal.

What this section covers

Static HTML pages generated before crawl time, not client-side placeholders.
Primary source links, review dates and visible trust notes in the published HTML.
Internal links to related codes, rules, calculators and province pages.

Popular pages in this section

TSICThailand Standard Industrial Classification, the core activity classification used across Thai business reference workflows.Foreign Business ActThe legal layer used to review whether foreign participation is restricted or requires a separate route.BOIBoard of Investment promotion layer used for eligible activities and incentive analysis.VATValue Added Tax in Thailand, usually reviewed together with thresholds and exemptions.WHTWithholding tax layer applied to selected payments rather than a flat rule for every invoice.Social Security OfficeAuthority and contribution framework for payroll-linked social security obligations.