Electronic signatures and online notarisation
Many contracts and powers of attorney can now be signed online, but banks, embassies and foreign authorities often still ask for a wet-ink original signed before a notary. A common problem we see: a client signs electronically, then is told to redo the whole set. This page covers what to check before choosing how to sign.
1. Where electronic signatures work
In Thailand an electronic signature is legally effective for ordinary transactions such as sale or service contracts. Some matters, such as registration at a Land Office, still follow that office's own forms and procedure. The real question is what the recipient accepts, not only what the law allows.
- Ask whether an e-signed PDF is accepted or a wet-ink original is required
- Ask whether notarisation or embassy legalisation is required
- Ask which translation language is needed and whether it must be certified
2. Remote online notarisation (RON)
Some jurisdictions, such as several US states, allow notarisation by video call. Thailand has no direct equivalent: a Thai Notarial Services Attorney certifies a signature with the signer present in person.
If the foreign recipient accepts an online notarisation from its own system, you may be able to use it. If the document must also be used in Thailand, Thai agencies usually expect the full legalisation chain, such as embassy and Department of Consular Affairs certification.
3. What we do
We review the recipient's requirements from the email or form you received and recommend how to sign. If a paper original is needed, we prepare the document, our attorney certifies your signature in person, and we arrange certified translation and consular or embassy legalisation where required.
From 28 February 2027 the Apostille Convention takes effect for Thailand, which may change the chain for member countries. We confirm the chain that applies on your filing date.
How to work with us
Send the document and the recipient's requirements by LINE or email. We advise on the method and quote price and delivery after reviewing the documents. The initial enquiry for a quote is free.
Frequently asked questions
Is an online-signed contract valid under Thai law?
Ordinary transactions can be, under the Electronic Transactions Act B.E. 2544. Some matters have forms set by law or by the agency.
Does Thailand have online notaries?
Not currently in a form equivalent to US remote online notarisation. Thai notarial attorneys certify with the signer present.
Do embassies accept e-signed documents?
Each embassy decides. Many still require wet-ink originals, so ask before signing.
Can a power of attorney be signed online?
It depends on the recipient. Land Offices and some banks usually require their own form signed in ink.
Can you certify an e-signed PDF?
We can certify a true copy of an original the signer presents. If the recipient wants a live signature, it must be re-signed before the notary.
Does the Apostille apply to electronic documents?
Some countries issue e-Apostilles. For Thailand the Convention takes effect on 28 February 2027; check the format with the Department of Consular Affairs.
Can I use your service outside Bangkok?
Yes. We have branches in Bangkok (Lat Phrao 95) and Khon Kaen and agents nationwide; signature certification still requires appearing in person.
What does it cost?
We quote after reviewing the documents. The initial enquiry for a quote is free.
Request a quote
Call 083-2494999 · LINE @NYC168 · contact@nyclegal.co.th
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