Updated September 24, 2026
Is an electronic signature legal in United States?
Short answer: Yes. Under the federal ESIGN Act and the Uniform Electronic Transactions Act (UETA), a signature or contract cannot be denied legal effect solely because it is in electronic form, so e-signatures are valid for most business and consumer documents in all 50 states.
The laws
ESIGN Act (15 U.S.C. §7001 et seq.)
Federal law enacted in 2000. It gives electronic signatures and records the same legal effect as paper in interstate and foreign commerce, and sets consumer-consent and disclosure rules where a law requires information to be provided in writing to consumers.
Uniform Electronic Transactions Act (UETA)
Model state law adopted by 49 states, the District of Columbia and the US Virgin Islands. It provides that a record or signature may not be denied legal effect solely because it is electronic, and that an electronic signature satisfies a law requiring a signature.
New York Electronic Signatures and Records Act (ESRA)
New York has not adopted UETA. ESRA (State Technology Law, Article 3, §304) gives electronic signatures the same validity and effect as a signature affixed by hand, unless a law provides otherwise, and ESIGN applies alongside it.
What counts as an electronic signature in the US
ESIGN defines an electronic signature broadly: an electronic sound, symbol or process attached to or logically associated with a record and executed or adopted by a person with the intent to sign. A typed name, a drawn signature on a screen, a click on an "I agree" button, or a signature created in an e-signature platform can all qualify.
Unlike the EU, US law does not create tiers such as "advanced" or "qualified" signatures. It is technology-neutral: the question is not which technology you used, but whether the signer intended to sign and whether you can attribute the signature to them.
What makes an e-signature hold up
Intent to sign: the signer must take a deliberate action, such as clicking a clearly labelled signing button or drawing a signature.
Consent to do business electronically: UETA applies only where the parties have agreed to transact electronically, which can be inferred from conduct. For consumer disclosures that a law requires in writing, ESIGN (15 U.S.C. §7001(c)) requires affirmative consent after specific disclosures, including the right to receive paper copies.
Association of the signature with the record, and record retention: the signed document must be kept in a form that accurately reflects it and can be reproduced later by everyone entitled to it.
Evidence and admissibility
UETA §13 states that a record or signature may not be excluded from evidence solely because it is electronic. In a dispute, the party relying on the signature must still show that it is authentic, meaning it was the act of the person who is said to have signed.
Attribution is usually proven with the surrounding evidence: the email address the signing link was sent to, timestamps, IP addresses, and a cryptographic hash showing the document was not changed after signing. An audit trail that captures these details is often the most useful piece of evidence you have.
Documents that are excluded or need extra steps
ESIGN (15 U.S.C. §7003) excludes wills, codicils and testamentary trusts; family-law matters such as adoption and divorce; most of the Uniform Commercial Code other than sales and leases of goods (Articles 2 and 2A); court orders and official court documents; and certain consumer notices, such as utility shut-off, foreclosure or eviction notices, cancellation of health or life insurance, and product recall notices.
Some documents need a notary. Many states now allow remote online notarization (RON), but that is a separate process performed by a commissioned notary, not something an ordinary e-signature replaces. A few states have also adopted electronic wills statutes; check the state's current law before relying on one.
Practical tips for US businesses
For everyday contracts such as NDAs, sales agreements, offer letters, freelance and service agreements, and most commercial leases, a simple electronic signature with a good audit trail is standard practice.
Send each signing request to a verified email address, keep the final signed PDF together with its audit trail, and, for consumer transactions, build the ESIGN consent disclosure into your signing flow. eSignSimple provides simple electronic signatures with an audit trail that records timestamps, IP addresses and a document hash.
This page is general information about how electronic signature law works, not legal advice. For a specific high-value or regulated transaction, check with a qualified lawyer in the relevant jurisdiction.
Documents that need more than a simple e-signature
- Wills, codicils and testamentary trusts (unless the state has an electronic wills statute)
- Adoption, divorce and other family-law matters
- Court orders, notices and official court documents such as pleadings
- Notices of utility service cancellation or termination
- Default, foreclosure, eviction or repossession notices for a primary residence
- Cancellation or termination of health or life insurance
- Product recall and material safety failure notices
- Documents that must accompany hazardous materials in transport
- UCC transactions other than sales and leases of goods (e.g. negotiable instruments under Article 3)
- Documents requiring notarization, unless a state-authorized remote or electronic notarization is used
Official sources
- 15 U.S.C. Chapter 96 – Electronic Signatures in Global and National Commerce (LII, Cornell Law School)
- Public Law 106-229 (ESIGN Act), GovInfo
- New York State Technology Law §304 (ESRA) – NY State Senate
This guide is general information, not legal advice. Laws change and details depend on your situation; consult a qualified lawyer in United States for specific transactions.
Frequently asked questions
Is a typed name a legal signature in the US?
It can be. ESIGN and UETA accept any electronic sound, symbol or process adopted with intent to sign, so a typed name can be valid. What matters is proving intent and who typed it, which is why an audit trail helps.
Does UETA apply in every state?
UETA has been adopted by 49 states, DC and the US Virgin Islands. New York uses its own Electronic Signatures and Records Act instead, and the federal ESIGN Act applies nationwide in interstate commerce.
Can I e-sign a real estate contract in the US?
Purchase agreements and leases are commonly e-signed. Deeds and mortgages that must be recorded often need notarization, which may be done through remote online notarization where the state and county recorder allow it.
Can a will be signed electronically in the US?
ESIGN and UETA exclude wills. A minority of states have separate electronic wills laws with their own witnessing rules, so a standard e-signature platform is not the right tool for a will.
Do I need a special certificate-based signature?
No. US law is technology-neutral and does not require certificate-based or qualified signatures for private contracts. Some government agencies set their own technical requirements for filings.
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