Is E-Signature Legal in Thailand? ETA B.E. 2544 — eSignature.llc
Yes — electronic signatures are legally binding in Thailand under the Electronic Transactions Act B.E. 2544. eSignature.llc is fully compliant with the requirements.
Legal basis: ETA B.E. 2544
The Electronic Transactions Act B.E. 2544 (2001), as amended in 2019, gives electronic signatures the same legal effect as handwritten signatures provided they (a) reliably identify the signer, (b) reliably indicate intent to be bound, and (c) are linked to the document such that any subsequent change is detectable. eSignature.llc satisfies all three under Section 9 of the Act.
What kind of signatures Thailand recognises
The Act recognises three tiers: simple electronic signatures (any electronic mark indicating consent), reliable electronic signatures (those meeting Section 9), and digital signatures backed by a Certified Authority. eSignature.llc produces a 'reliable' signature under Section 9 — sufficient for most commercial contracts.
When a Thai CA-issued digital signature is required instead
Filings with Thai government agencies (RD tax filings, DBD MOC filings) typically require a digital signature issued by a Thai Certifying Authority. eSignature.llc covers private commercial contracts, NDA, employment, vendor agreements, and BOI documentation that doesn't specifically require a CA-issued signature.
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