Electronic signatures for UK startups: a practical guide

Getting wet-ink signatures from co-founders, employees or clients can slow your startup down. In a remote-first world, relying on paper no longer makes much sense. But can you sign almost everything electronically and still be legally safe? This guide sets out what the law says, what works in practice, and where you need to pause.

The legal position in the UK

Electronic signatures are widely recognised as legally binding. The key source is the Electronic Communications Act 2000, which confirmed that electronic signatures are admissible as evidence in legal proceedings. The courts have also accepted that a name typed at the end of an email can amount to a signature.

In practice, two things matter:

• Did the person intend to sign?
• Can you prove it?

Meeting those two requirements is typically straightforward with modern tools.

After Brexit, the UK created its own version of the EU’s eIDAS regulation. The UK eIDAS framework continues to treat electronic signatures as legally effective, so nothing has changed for domestic contracts.

What you can sign electronically

Most documents your startup handles in its early years can be signed electronically. This includes:

• Commercial contracts and NDAs
• Employment contracts and offer letters
• Founder and shareholder agreements
• Board minutes and written resolutions
• Consultant and supplier agreements
• Option grant letters

For board minutes, it is normal for the chair to sign the final version electronically. Written resolutions under the Companies Act 2006 can be circulated by email and signed one by one; there is no requirement for a physical meeting or wet ink.

Employment contracts signed via a platform like DocuSign or HelloSign are enforceable, provided you can show the employee received, reviewed and accepted the terms. Always keep a clear audit trail.

Documents that need extra thought

A small number of documents still give people pause. The main one is deeds. A deed might need to be used for a share transfer, a power of attorney or, occasionally, a shareholder agreement if you want longer limitation periods.

The Law Commission confirmed in 2019 that deeds can be executed using an electronic signature. However, if a deed requires a witness, that witness must be physically present when the signatory signs. Remote witnessing via video link is generally not accepted. For a simple share transfer with no witness requirement, electronic execution is fine, but many startups still prefer to use paper for deeds to avoid any argument over formalities.

Documents that must be filed at Companies House – such as confirmation statements and certain resolutions – are usually filed online directly through an authenticated account, so signing requirements are handled within the service. You do not need a separate signature.

Types of electronic signature

It helps to know the labels, though most startups only need the simplest ones.

Simple electronic signature: A scanned image of a wet signature, a name typed in an email, or clicking an ‘I accept’ button. This is enough for the vast majority of everyday startup contracts.

Advanced electronic signature: Uniquely linked to the signatory, capable of identifying them, and created using data the signatory can keep under their sole control. Many e-signature platforms provide this, often with two-factor authentication and a tamper-sealed document. If you need a little more evidential weight, this is a good choice.

Qualified electronic signature: Requires a qualified certificate issued by a trust service provider. You are unlikely to need this unless you operate in a regulated sector with specific identity requirements.

For a typical startup, a simple or advanced signature from a reputable provider meets every practical need.

Practical steps for your signing workflow

Start by choosing a consistent approach so nothing gets lost in email threads. A few habits go a long way:

• Use a single e-signature platform (DocuSign, HelloSign, PandaDoc or similar) for all important contracts. This automatically creates an audit trail showing who signed, when and from which IP address.
• For one-off agreements where a platform feels heavy, a clear email trail stating ‘I confirm I agree to the attached terms’ can work, but it is messier to prove later.
• Always check the counterparty’s authority. If you are signing with a company, make sure the person signing has actual or apparent authority to bind that company.
• Store the completed version and the audit trail together in your document hub. If a dispute ever arises, you want to find the evidence in minutes, not hours.
• Never push someone to sign if they are uncomfortable. If an investor, key customer or potential acquirer prefers a traditional signature, it is often simpler to accommodate them rather than lose momentum.

Witnessing and deeds in a bit more detail

When a deed requires witnessing, the witness must be physically present and should sign after the signatory. If you are sitting across a table from someone, that works. If you are miles apart, you either need to arrange a meeting or consider whether a deed is truly necessary. Many arrangements can be structured as a simple contract without a deed, so ask your solicitor whether you can avoid the hassle.

What about stamp duty?

Some documents, such as share transfers, might attract stamp duty. HMRC accepts electronically signed documents and you can pay stamp duty online. You will often need to submit a PDF of the signed transfer to HMRC, which is perfectly acceptable. No physical stamp is placed on the document anymore; you receive a digital confirmation.

Keeping everything organised

After signing, do not let the executed document live only in the e-signature platform’s inbox. Save the final PDF with an obvious file name into your startup’s central document repository. If you use StartupDocs, you can generate templates, collaborate on final drafts and then export to a format ready for signing. Having every signed contract and company document stored in one place makes compliance reviews, due diligence and handovers far less painful.

If any document structure looks unusual or you are relying on a signed document to make a permanent change in your cap table, it is always prudent to have it reviewed by a solicitor. Electronic signatures remove friction, but the content is what matters legally. Get the words right first, then click sign.