The Vietnam E-Transaction Law is the reason a contract signed on a phone in Ho Chi Minh City can carry the same legal weight as one signed in ink on paper. The Law on Electronic Transactions, Law No. 20/2023/QH15, was passed by the National Assembly on 22 June 2023 and took effect on 1 July 2024, replacing the 2005 law that had governed electronic deals for nearly two decades. It covers data messages, electronic signatures, digital signatures, electronic contracts, and the trust services that vouch for them — and it applies across all sectors, where the earlier law left gaps. For anyone who sells online, signs agreements remotely, or keeps business records in digital form, this is the law that makes the paperless version count.
Data messages count as real documents
The law starts from a simple principle: information in electronic form cannot be denied legal validity just because it is electronic. A data message — any information generated, sent, received, or stored by electronic means — can take the form of an electronic document, certificate, voucher, contract, email, or other electronic exchange. When certain conditions are met, a data message is as valid as an original paper copy and can be used as evidence in legal proceedings.
The practical consequence is that businesses no longer need to print and file a paper copy of every agreement “just to be safe.” What matters instead is integrity: the message must be complete and unaltered, and it must be accessible and usable for later reference. That is why reliable storage matters as much as the signature itself — a contract kept in a shared drive with no version history is weaker evidence than one stored in a system that records when it was created and whether it changed. Good record-keeping is now part of the law, not just good administration.
Electronic signatures, digital signatures, and the difference
The law draws a distinction that trips up many businesses. An electronic signature is any signature in electronic data form that is attached to, or logically associated with, a data message to identify the signatory and show their approval. A scanned image of a handwritten signature pasted into a document can be an electronic signature. A digital signature is a specific, stronger kind: an electronic signature that uses asymmetric cryptography — a private key to sign and a public key to verify — which guarantees the authenticity and integrity of the message and prevents the signer from denying it later.
The 2023 law classifies electronic signatures into three types by purpose: specialised electronic signatures created by agencies and organisations for their own operations; public digital signatures; and specialised digital signatures for official activities. The requirements differ by type, and a digital signature backed by a certificate from a licensed provider carries the strongest legal weight. Foreign electronic signatures and foreign signature certificates are recognised in Vietnam when they meet the law’s conditions, including conformity with Vietnamese standards or recognised international standards — a provision that matters for cross-border deals, where the other party may sign with a service from their own country.
Electronic contracts and the sectors they now reach
One of the biggest changes from the 2005 law is scope. The old law excluded certain areas — such as the issuance of land use right certificates and birth certificates — from electronic transactions. The 2023 law covers all areas without exception, although it does not override other laws that set the content, conditions, or form of a transaction in a particular sector. If another law requires a specific form — notarisation for a house sale, for example — that requirement still applies. But where other laws allow electronic execution, or are silent about it, the electronic route is open.
An electronic contract is formed the same way any contract is: offer, acceptance, and agreement on the terms. The law recognises contracts concluded through data messages, and it addresses practical questions such as when a message is considered sent and received, and how the time and place of dispatch and receipt are determined. For an online seller, the everyday version of this is the order confirmation, the invoice, and the terms shown at checkout — all of which are electronic contracts in the eyes of the law. That is one more reason to keep those records accurate and retrievable, and to make sure customers can read the terms before they agree. The rules for electronic invoicing, explained in our guide to e-invoicing for small businesses, sit directly on top of this framework.
Trust services and staying on the right side of the law
Behind the signatures sits a layer the law calls trust services: the providers that issue and manage digital signature certificates, verify timestamps, and run the systems that check whether a certificate is still valid. The law makes “trusted service business” a conditional investment sector, and providers must meet standards set by the authorities. For a business choosing a signing provider, the practical check is simple: use a licensed Vietnamese provider, or a foreign one whose certificates are recognised under the law’s conditions, and keep the certificate status records.
The law also lists prohibited acts: using electronic transactions to harm national interests or security, obstructing information systems, unlawfully collecting or disclosing data, forging or altering data messages, fraud or forgery of electronic signatures and certificates, and unauthorised use of someone else’s account, certificate, or signature. It requires participants in electronic transactions to ensure information security and cybersecurity and to comply with personal data protection rules — the subject of our guide to Decree 13/2023 on personal data protection. And because identity is the foundation of a trustworthy signature, the verified accounts created under Decree 320/2026 on VNeID linkage are becoming part of the same picture. Estonia’s approach to the same problem — one verified identity, reusable across services — is described in our article on Estonia’s once-only principle and X-Road.
What this means
The Vietnam E-Transaction Law gives paperless business a firm legal footing: data messages are valid documents, digital signatures backed by licensed certificates carry the strongest weight, foreign signatures can be recognised, and electronic contracts now reach every sector where other laws do not forbid them. For a business, the action list is short: use proper digital signatures for anything important rather than pasted images, keep contracts stored with their integrity intact, use a licensed signing provider, and remember that the sector-specific rules — notarisation, licences, registrations — still apply on top. Paper is no longer the test of whether a deal is real. The signature, the record, and the rules behind them are.