e-Invoice.app
Thailand

Thailand e-Invoicing

Updated 30 August 2025

B2B
voluntary
since 1 January 2020
Voluntary e-Tax Invoice system with government incentives.
B2G
voluntary
since 1 January 2020
e-Tax Invoice system available for B2G transactions with government incentives and streamlined processes.
B2C
none
No mandatory B2C e-invoicing requirements; focus remains on B2B digitization incentives.

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View Thailand's e-invoicing regulatory compliance information.

XML format with digital signatures
Revenue Department e-Tax Invoice specifications
XML with digital signature requirements
Integration with Revenue Department validation system

Archiving Requirements:

5 years retention (up to 7 years if prescribed) per Revenue Code Section 87/3 ; Electronic storage valid under Electronic Transactions Act; Must maintain integrity and accessibility.
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Access Thailand's XML format with digital signatures, Revenue Department e-Tax Invoice specifications standards, XML with digital signature requirements, Integration with Revenue Department validation system format specifications, clearance model details, and archiving requirements.

N/A
No SAF-T implementation; Thailand uses e-Tax Invoice system with voluntary adoption and government digitization incentives

Access detailed regulatory announcements and implementation guidance.

e-Tax Invoice system launch
1 January 2020
Voluntary system
Details available after sign in
Enhanced digital transformation incentives
1 January 2023
Business incentives
Details available after sign in
Digital transformation tax incentive deadline
31 December 2025
Incentive program
Details available after sign in

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Last updated: 30 August 2025
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