Is an electronic signature legal in United Kingdom?

Types of electronic signature recognised

UK eIDAS keeps the three familiar levels. A simple electronic signature is any data in electronic form attached to or associated with other data and used to sign, such as a typed name, a drawn signature or a click-to-sign. An advanced electronic signature (AES) must be uniquely linked to and capable of identifying the signer and detect later changes. A qualified electronic signature (QES) is an AES created with a qualified signature creation device and based on a qualified certificate.

English common law has long accepted informal signing methods, and in Neocleous v Rees [2019] EWHC 2462 (Ch) the court held that a name in an email footer, even one generated automatically, could satisfy a statutory signature requirement because it was applied with authenticating intent. The legal question is intent, not technology.

When a simple e-signature is enough

For the vast majority of commercial documents, including NDAs, employment contracts, supplier agreements, terms of business and most leases that are not deeds, a simple electronic signature is legally effective in England and Wales.

Unlike the EU, UK law does not make a qualified signature the automatic equivalent of a handwritten one, and there is no general requirement to use AES or QES for private contracts. Higher levels mainly help with proof of identity and integrity if the signature is ever challenged.

Deeds, witnessing and land

A deed can be signed electronically, but if it must be signed "in the presence of a witness", the Law Commission's view is that the witness must be physically present. The Commission suggested that video witnessing could be allowed through future legislative reform, but it is not permitted under the current law.

HM Land Registry sets its own rules in Practice Guide 82. It accepts only specific methods, such as "Mercury" signings, conveyancer-certified electronic signatures made through a platform with one-time-password checks, and qualified electronic signatures for certain documents, and it last updated this guidance in June 2026. A plain e-signature on a transfer or mortgage deed is not enough, so check the current guide before relying on any method.

Evidence and admissibility

Section 7 of the ECA 2000 makes electronic signatures admissible, and courts weigh them like any other evidence. If a signature is disputed, the person relying on it needs to show who signed and that the document has not been altered.

An audit trail recording email delivery, timestamps, IP addresses and a document hash is practical evidence of both. For higher-risk transactions, businesses often add identity checks or use an advanced or qualified signature.

Scotland and Northern Ireland, and practical tips

Scotland has its own rules under the Requirements of Writing (Scotland) Act 1995 and the Electronic Documents (Scotland) Regulations 2014: an electronic document that must be in writing needs an advanced electronic signature (with a qualified certificate for self-proving status), so check Scottish requirements separately. Northern Ireland broadly follows the English position.

In practice: keep the signed PDF and its audit trail together, use execution clauses that expressly allow electronic signing and counterparts, and keep wet-ink or specialist processes for wills and witnessed deeds. eSignSimple provides simple electronic signatures with an audit trail (timestamps, IP addresses and a document hash); it does not issue qualified electronic signatures.

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.