Thailand

TH

Thailand's Revenue Department runs an opt-in e-Tax Invoice & e-Receipt system in which approved businesses issue digitally signed electronic tax invoices and receipts and send the XML data to the department; Peppol has no role in the material reviewed.

Guide reviewed .

Invoicing and electronic documents

e-Tax Invoice & e-Receipt

Revenue Department service for businesses approved to issue tax invoices, debit and credit notes and receipts electronically. The issuer sends the document to the buyer and the XML data to the department. It is a tax reporting channel, not a delivery network, and is not connected to Peppol.

XML under ETDA standard ขมธอ. 3-2560, signed with XAdES; buyer copies may be XML, PDF or PDF/A-3 · Official source: Revenue Department · e-Tax Invoice & e-Receipt overview (Thai)

Submission channels

Data reaches the Revenue Department by web upload of XML, by a host-to-host connection using ebXML (ETDA standard ขมธอ. 14-2560), or through a service provider that meets the department's criteria.

XML upload, ebXML, or service provider · Official source: Revenue Department · e-Tax Invoice & e-Receipt overview (Thai)

e-Tax Invoice by Email (Time Stamp)

ETDA’s published FAQ offers this route to VAT registrants with revenue no greater than THB 30 million per tax year or accounting period. The seller submits PDF/A-3 by email for timestamping; paper invoices may also be used.

PDF/A-3 by email · Official source: ETDA · official e-Tax Invoice by Email FAQ

Peppol

No Thai Peppol Authority is listed; OpenPeppol acts as the authority where there is no national one. The Revenue Department material reviewed does not refer to Peppol.

Peppol BIS Billing · Official source: OpenPeppol · Peppol Authorities

Electronic tax invoicing has distinct routes. Approved e-Tax Invoice & e-Receipt issuers follow the Revenue Department’s signed-data submission rules; the Time Stamp route uses PDF/A-3 and central timestamping.

The ETDA FAQ continues to publish the THB 30 million eligibility limit and describes the email route as optional. Check eligibility, document type and retention duties for the route selected; delivering an invoice through another network does not replace a required Revenue Department submission.

Timeline

  1. ETDA trade message standard, version 2.0

    ETDA's recommendation ขมธอ. 3-2560 defined the XML structures for e-invoices, e-receipts, e-tax invoices, debit and credit notes, abbreviated tax invoices and cancellation notes used by the e-Tax system.

    Official source: Revenue Department · seminar slides on e-Tax Invoice routes, 2019 (Thai)
  2. ETDA email invoice service opens

    ETDA’s FAQ gives 1 March B.E. 2560 as the service opening date.

    Official source: ETDA · official e-Tax Invoice by Email FAQ
  3. PDF/A-3 only on the email route

    From this date, tax invoices sent through e-Tax Invoice by Email had to be PDF/A-3 files.

    Official source: Revenue Department · seminar slides on e-Tax Invoice routes, 2019 (Thai)

Peppol in Thailand

Directory participants
24
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7

Peppol Authority: OpenPeppol.

Peppol Directory data as of .

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New registrations per month
New registrations per month051015May 2021: 11Jun 2021: 3Jul 2021: 1Aug 2021: 1Sept 2021: 2Nov 2021: 1Aug 2023: 1Feb 2025: 1Jun 2025: 1Sept 2025: 1Jan 2026: 1May 2021Jan 2026

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