Are Electronic Signatures Legally Binding?

This page quotes what the relevant statutes actually say, with a link to each source, so you can check any statement yourself. It explains the law in general terms — it is not legal advice, and it can’t tell you how the law applies to your particular document. For that, ask a lawyer in your jurisdiction.

United States: the ESIGN Act and UETA

Two laws govern electronic signatures in the US.

The federal ESIGN Act (Electronic Signatures in Global and National Commerce Act), in effect since 2000, provides at 15 U.S.C. § 7001(a) that a signature, contract, or record relating to a transaction in or affecting interstate or foreign commerce:

“may not be denied legal effect, validity, or enforceability solely because it is in electronic form.”

The Uniform Electronic Transactions Act (UETA), a model state law published by the Uniform Law Commission in 1999, has been enacted by every state except New York, along with the District of Columbia, Puerto Rico, and the US Virgin Islands. According to the New York City Bar Association, New York instead relies on its own Electronic Signatures and Records Act (ESRA), enacted in 2000, and the Bar’s Commercial Law and Uniform State Laws Committee has recommended the legislature amend ESRA to incorporate key UETA provisions.

Commentators commonly summarise these statutes as requiring four things for an enforceable electronic signature — intent to sign, consent to transact electronically, association of the signature with the record, and the ability to retain and accurately reproduce the record. ESIGN sets out the consumer-consent and record-retention requirements at § 7001(c) and § 7001(d). Whether any given signature meets them is a question about your specific facts.

Neither statute prescribes what a signature must look like. ESIGN defines an electronic signature at 15 U.S.C. § 7006(5) as “an electronic sound, symbol, or process, attached to or logically associated with a contract or other record and executed or adopted by a person with the intent to sign the record.”

European Union: eIDAS

In the EU, the eIDAS Regulation (Regulation (EU) No 910/2014, as amended by Regulation (EU) 2024/1183) applies across all 27 member states. Article 25(1) states that an electronic signature:

“shall not be denied legal effect and admissibility as evidence in legal proceedings solely on the grounds that it is in an electronic form or that it does not meet the requirements for qualified electronic signatures.”

eIDAS defines three tiers, which we cover in eIDAS explained: SES vs AdES vs QES:

• Simple Electronic Signature (SES) — covered by the Article 25(1) rule above.
• Advanced Electronic Signature (AdES) — must meet the additional requirements in Article 26.
• Qualified Electronic Signature (QES) — Article 25(2) provides that a QES “shall have the equivalent legal effect of a handwritten signature.” It is the only tier the Regulation gives that automatic equivalence.

Member states may impose their own form requirements for particular transactions, so which tier a specific document needs is a national-law question.

United Kingdom, Canada, and Australia

United Kingdom. eIDAS was retained in UK law after Brexit. In its 2019 report on the electronic execution of documents, the Law Commission of England and Wales concluded that an electronic signature is capable in law of being used to execute a document, including a deed, provided the signatory intends to authenticate it and any applicable formalities are met.

Canada. This is more nuanced than it is often described. The federal PIPEDA Part 2 sets out electronic alternatives to paper for federal purposes, but according to Government of Canada guidance it operates largely as an opt-in framework: its provisions apply where the federal law or provision requiring the signature has been listed in Schedule 2 or Schedule 3 of the Act. “Secure electronic signature” is a defined term with specific technical requirements, set out in the Secure Electronic Signature Regulations (SOR/2005-30), which are annexed to both PIPEDA and the Canada Evidence Act.

Ordinary private contracts in Canada are generally governed not by PIPEDA but by provincial legislation — for example Ontario’s Electronic Commerce Act, 2000 or British Columbia’s Electronic Transactions Act. Because these are provincial statutes, the details differ by province, and some land-registry and government filings have their own requirements. We cover this in full, including where the provinces diverge, in Are electronic signatures legal in Canada?

Australia. The Electronic Transactions Act 1999 (Cth) provides for electronic communications to satisfy legal requirements for signatures, subject to the conditions and exemptions set out in that Act and its regulations.

The documents ESIGN expressly carves out

The ESIGN Act lists categories it does not apply to. Under 15 U.S.C. § 7003, these are:

Section 7003(a) — laws governing:

• Wills, codicils, and testamentary trusts — why, and where state law has since opened an electronic path, is its own page: can you sign a will electronically?
• Adoption, divorce, and other matters of family law
• The Uniform Commercial Code as in effect in any state, other than §§ 1-107 and 1-206 and Articles 2 and 2A

Section 7003(b) — specific notices and documents:

• Court orders, notices, and official court documents including briefs and pleadings
• Notices of cancellation or termination of utility services
• Notices of default, acceleration, repossession, foreclosure, eviction, or the right to cure under a credit agreement secured by a primary residence
• Notices of cancellation or termination of health or life insurance benefits (excluding annuities)
• Notices of product recall or material failure that risks endangering health or safety
• Documents required to accompany the transport or handling of hazardous materials

Note on real estate: ESIGN does not exclude real-estate transactions — § 7001(a) applies to them like any other transaction in or affecting interstate commerce. Separate requirements can still apply in practice, because recording and land-registry rules are set by individual states, provinces, and registries rather than by ESIGN. Check the requirements of the specific registry involved.

In the EU, national law may require an AdES or QES for certain transactions such as some real-estate or corporate filings.

Legal validity versus proving it later

Being legally valid and being provable in a dispute are different problems. That distinction also settles the terminology: a digital signature is not more legally valid than an electronic one — cryptography strengthens the evidence, not the validity, as we explain in electronic signature vs digital signature. Where evidence is concerned, what matters is the record surrounding the signature:

• Who signed — identity, email, and authentication.
• When and from where — timestamps, IP addresses, and device details for each action.
• What they signed — a tamper-evident seal on the final document, so later modification is detectable.

That surrounding record is what platforms package as a certificate of completion — we break down what it contains, and what it actually proves.

This is why ESIGN’s record-retention rule at § 7001(d) turns on whether a record “accurately reflects the information set forth in the contract” and “remains accessible” to those entitled to it.

Signatura records a full audit trail and seals every completed document with a SHA-256 hash that anyone can re-verify — see how we secure documents.

Frequently asked questions

Is a typed name a legal signature?

ESIGN’s definition at 15 U.S.C. § 7006(5) covers “an electronic sound, symbol, or process” adopted “with the intent to sign the record” — it does not require any particular appearance. Whether a specific typed name meets that test depends on the circumstances, including whether intent and attribution can be shown.

Are electronic signatures admissible in court?

ESIGN § 7001(a) and eIDAS Article 25(1) both bar rejecting a signature solely because it is electronic. Neither guarantees any particular signature will be accepted — admissibility and weight still turn on the evidence, which is what the audit trail supplies. Whether a signature holds up is therefore an evidence question: what the certificate of completion records — and what it can prove — is the difference in practice.

Do both parties have to agree to sign electronically?

ESIGN § 7001(c) sets out specific consent requirements where a statute requires information to be provided to a consumer in writing, including that the consumer consents electronically in a way that reasonably demonstrates they can access the information. Requirements outside that consumer context differ, and UETA-enacting states have their own provisions.

What are the four requirements for an electronic signature to be valid?

Commentators usually summarise ESIGN and UETA as four: intent to sign, consent to transact electronically, association of the signature with the record, and the ability to retain and accurately reproduce it. The statutes do not themselves set out a list of four — intent is built into the definition at § 7006(5), and the consumer-consent and record-retention rules sit at § 7001(c) and § 7001(d).

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Sources: ESIGN Act, 15 U.S.C. § 7001 · § 7003 exemptions · § 7006 definitions · Regulation (EU) No 910/2014 (eIDAS), EUR-Lex · PIPEDA, consolidated text · Secure Electronic Signature Regulations (SOR/2005-30) · Government of Canada guidance on electronic signatures · NYC Bar Association on ESRA and UETA · Uniform Law Commission, Uniform Electronic Transactions Act (1999).

Last reviewed July 2026. This page describes what published statutes say and is not legal advice.