Electronic Communications Act 2000
ICO
GBP
Yes, electronic signatures are generally legally valid in United Kingdom under Electronic Communications Act 2000 and sufficient for most contract types without a form requirement. canusign uses the simple electronic signature (SES); for documents with a statutory written-form or notarial requirement it is not sufficient.
In United Kingdom, you can digitally sign most contracts, including: Most commercial contracts, Employment contracts. Exceptions are: Deeds (witnesses required), Land Registry.
The responsible authority in United Kingdom is ICO. They oversee compliance with legal requirements for electronic signatures.