Are Digital Contracts Legally Binding in the UK? Yes — Here's the Law

Part of our Compliance Guide — everything UK contractors need to know about certificates, contracts, and legal protection.

One of the most common questions we hear from contractors: "Is a digital contract actually legal?"

The short answer: yes, absolutely.

The Electronic Communications Act 2000

The Electronic Communications Act 2000 established that electronic signatures are admissible as evidence in legal proceedings across the UK.

This was reinforced by UK eIDAS (retained post-Brexit), which recognises three levels:

1. Simple Electronic Signatures (SES)

A typed name, a tick box, or clicking "I accept." Legally valid for most commercial contracts. This is the level Certi uses, enhanced with additional security.

2. Advanced Electronic Signatures (AES)

Uniquely linked to the signatory. Typically involves a secure digital certificate.

3. Qualified Electronic Signatures (QES)

The gold standard — has the legal equivalence of a handwritten signature in all UK courts.

Why Certi Goes Beyond Basic

While a simple electronic signature is legally sufficient, Certi adds:

• Typed signature with full name
• Timestamp recorded to the second
• IP address logging
• Email confirmation to both parties
• Linked evidence from the job's evidence vault

What About WhatsApp Agreements?

Technically, a WhatsApp message could constitute a contract. The problem? Good luck proving it in a dispute. Messages can be deleted, screens edited, and there's no formal record of terms.

A proper digital contract takes 30 seconds to send and 10 seconds to sign. It removes all ambiguity.

---

Certi creates legally binding digital contracts with timestamped signatures and linked evidence vaults. Join the waitlist to get early access.