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TH · Country and locale facts

Document format and locale facts for Thailand

Use these defaults as a practical starting point for presentation. ISO/CLDR formatting facts are not legal or tax advice, and reviewed jurisdiction guidance is identified separately.

Currency & locale

THB · th-TH

Paper & date

A4 · DD/MM/YYYY (DMY)

Language

th (official) · LTR

Text system

buddhist calendar · latn digits

Why these defaults?

The country code comes from ISO 3166. Unicode CLDR supplies presentation-oriented locale, currency, paper, date, language, calendar, numbering, and direction metadata. Defaults reduce setup time; they do not decide what a valid document must contain.

Recorded official or regional-official language tags: th.

Limited guidance reviewed

Document vocabulary and checks

Thai Revenue Department sources support the cited VAT tax-invoice particulars. Record retention and the current e-Tax Invoice/e-Receipt issuance and submission boundary are not yet evidenced here, so this pack remains partial. Abbreviated invoices, foreign-language or currency approvals and special VAT circumstances remain transaction-specific checks.

Evidence snapshot: 2 official sources · last reviewed 2026-07-18. This is scoped guidance, not a jurisdiction-wide compliance certification.

Tax labels: VAT. Business identifier labels: Taxpayer Identification Number.

  • Required when applicable: A Thai VAT tax invoice must prominently show 'Tax Invoice', the issuing VAT registrant's name and taxpayer ID, purchaser name and address, serial number, description/type/category/quantity/value of goods or services, VAT separately from supply value, and issue date. It is normally in Thai language and Thai currency unless an authority-approved exception applies.Evidence TH_RD_TAX_INVOICE, TH_RD_SECTION_86_4 · reviewed 2026-07-18 · review by 2027-01-18 · automation advisory only

Identifier format guidance: See the relevant authority.

Reviewed official sources

Registry provenance

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