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Thailand e-Invoicing

Updated 30 August 2025

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  • Key facts
  • Timeline
  • Tax & Compliance
  • Formats
  • FAQ

Thailand runs a voluntary e-Tax Invoice system for B2B and B2G transactions, available since 2020 with government incentives. Invoices use XML with digital signatures and integrate with the Revenue Department validation system. There is no mandatory B2C requirement.

Thailand e-Invoicing Overview

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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Implementation Timeline(3 events)

Key mandate dates. Select a date for detail, or show all updates below.

e-Tax Invoice system launch
1 January 2020
Voluntary system
Revenue Department launched voluntary e-Tax Invoice system for businesses.
Enhanced digital transformation incentives
1 January 2023
Business incentives
Government expanded tax incentives for digital transformation including e-invoicing adoption.
Digital transformation tax incentive deadline
31 December 2025
Incentive program
150% tax deduction for digital transformation expenses (including e-invoicing) expires December 2025.

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Compliance Regime

CTC Model
Real-time reporting
Voluntary reporting through Revenue Department e-Tax Invoice system with real-time validation capabilities
Network
Real-time reporting
Standards
XML format with digital signatures, Revenue Department e-Tax Invoice specifications

Record-keeping & Reporting

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

Technical Formats

XML with digital signature requirements
Integration with Revenue Department validation system

Detailed exemptions, penalties and cross-border rules for Thailand are not yet published. The official sources have the latest detail.

Official Sources

  • rd.go.thOfficial site
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Related Countries

  • BahrainVoluntary
  • CambodiaVoluntary
  • Hong KongVoluntary
  • JapanVoluntary

Frequently asked questions about e-Invoicing in Thailand

e-Invoicing is currently voluntary for B2B and voluntary for B2G transactions in Thailand.

B2B e-Invoicing in Thailand is voluntary since 2020-01-01. Voluntary e-Tax Invoice system with government incentives.

B2G e-Invoicing in Thailand is voluntary since 2020-01-01. e-Tax Invoice system available for B2G transactions with government incentives and streamlined processes.

Thailand supports the following e-Invoice formats: XML with digital signature requirements, Integration with Revenue Department validation system.

Thailand uses the following e-Invoicing standards: XML format with digital signatures, Revenue Department e-Tax Invoice specifications. Archiving requirement: 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..

Voluntary reporting through Revenue Department e-Tax Invoice system with real-time validation capabilities