E-Invoicing Country

Thailand

Voluntary

Voluntary, no mandate yet

Flag of Thailand

Mandate Overview

The mandate

Thailand's Revenue Department (RD) operates the e-Tax Invoice & e-Receipt program, voluntary since January 2017 and progressively expanded with government incentives. Two channels coexist: the e-Tax Invoice & e-Receipt system for VAT-registered businesses (any turnover) using XML, and the simpler e-Tax Invoice by Email service (PDF) for businesses with annual turnover under 30 million THB. The Revenue Department offers tax incentives — including 200% deductions on e-tax invoice system implementation costs — to accelerate adoption. There is no firm date announced for a universal mandate, but RD officials have signalled progressive tightening through the second half of the 2020s as part of the broader Thailand 4.0 digital transformation agenda.

Timeline

Key milestones

2017
Jan 1, 2017
  • e-Tax Invoice & e-Receipt voluntary system launched

2018
Apr 1, 2018
  • e-Tax Invoice by Email service introduced for SMEs (under 30M THB turnover)

2023
Jan 1, 2023
  • 200% tax deduction incentive for e-tax invoice implementation costs

2025
Jan 1, 2025
  • RD signals progressive expansion of mandatory categories

Flowie Coverage

How Flowie supports Thailand

Flowie tracks Thailand regulatory developments. Native Thailand e-Tax Invoice support is on the roadmap as the Revenue Department program moves from voluntary to mandated scope.

FAQ

Common questions

Is e-invoicing mandatory in Thailand?

No, e-Tax Invoice & e-Receipt remains voluntary. The Revenue Department offers tax incentives to encourage adoption, including 200% deductions on implementation costs, but there is no announced universal mandate date. Existing law requires that any electronically issued invoice meet the e-Tax Invoice technical and signing requirements.

What format is used?

e-Tax Invoice & e-Receipt XML (digitally signed) for the standard system, or PDF via the e-Tax Invoice by Email service for SMEs under 30M THB turnover. Both must be transmitted to or notified through the Revenue Department channels. ETDA (Electronic Transactions Development Agency) certifies digital certificate authorities.

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