Witnessing Deeds and Mortgages in the UK - What Small Business Owners Need to Know

If you run a small business, you probably sign a lot of paperwork - leases, supplier agreements, guarantees, or loan documents. Some of those aren’t just “contracts” but deeds - formal legal documents that must meet specific signing and witnessing rules to be valid.

It’s common to assume that any adult can witness a signature. But when it comes to deeds, getting the witnessing wrong can make the whole document unenforceable. For a small business, that could mean losing vital protection or facing costly re-signing delays with a bank, landlord or investor.

In this guide, we’ll break down what deeds are, who can (and can’t) witness them, how the rules apply to small businesses, and the steps you can take to make sure your documents are legally sound and fully compliant.

What Exactly Is a Deed?

A deed is a type of legal document used when the law requires a higher level of formality or when no exchange of value (consideration) takes place. Common examples for small businesses include:

• Mortgage or loan deeds securing business property
  
• Guarantees given by directors or shareholders
  
• Commercial leases or lease assignments
  
• Deeds of variation, release, or novation
  
• Shareholder or partnership arrangements formalised by deed
  

In short, a deed records a serious commitment. Because of that, the law requires extra safeguards - including independent witnessing.

Under section 1 of the Law of Property (Miscellaneous Provisions) Act 1989, a deed must:

1. Be in writing and clearly state it is intended to be a deed (e.g. include “executed as a deed”),
   
2. Be validly signed, and
   
3. Be witnessed (if signed by an individual).
   

For companies, the Companies Act 2006 adds options for corporate execution, which we’ll cover below.

Why Witnessing Matters

A witness is there to confirm that the person signing did so voluntarily and that the signature is genuine. This adds legal weight and prevents fraud or later disputes.

If a deed isn’t properly witnessed, it may be invalid or unenforceable. That can have serious implications - for example:

• Your mortgage might not be registered by HM Land Registry.
  
• A personal guarantee you’ve given (or relied on) might be void.
  
• A lease assignment might not transfer legal ownership.
  
• A lender or investor might withdraw or delay funding.
  

These are all scenarios that can create headaches and financial loss for a small business.

Who Can Act as a Witness?

The law doesn’t prescribe a long list of who can witness, but there are important conditions drawn from the Law of Property (Miscellaneous Provisions) Act 1989, the Law of Property Act 1925, and case law.

A valid witness must:

• Be over 18 years old,
  
• Be of sound mind, and
  
• Be physically present to see the person sign the document.
  

The witness should also sign the deed immediately after watching the signature, and print their full name, address and occupation under their signature.

Independence is key

While the law doesn’t strictly forbid relatives, using someone close to you is risky. A court or lender might question their independence. The best practice is to choose someone who is:

• Not a party to the deed (i.e. not signing it themselves)
  
• Not a spouse, civil partner, parent, child or sibling
  
• Not someone with a financial or business interest in the transaction
  

Good examples for small businesses

• A neighbouring business owner
  
• A friend or colleague unconnected to the deal
  
• An accountant, solicitor, or independent professional
  
• A member of the local community such as a teacher, police officer, or shop manager
  

Witnessing Deeds for Mortgages and Property Transactions

Many small businesses sign mortgage deeds when borrowing against premises or assets. These are governed by the Law of Property Act 1925 and LP(MP)A 1989.

For a mortgage deed to be valid and registrable, it must:

1. Clearly say it’s executed as a deed,
   
2. Be signed by the borrower (the mortgagor),
   
3. Be witnessed by an independent adult, and
   
4. Be delivered - meaning the borrower intends to be bound by it.
   

Mortgage lenders and the Land Registry take these rules seriously. If the deed isn’t properly executed, the Land Registry can reject the registration, delaying completion and possibly invalidating the loan security.

For property-owning businesses, this can cause cash flow disruption or even put financing at risk.

Witnessing Rules for Companies and Directors

If your business is a limited company, deeds can be executed in a few different ways under section 44 of the Companies Act 2006:

• Two authorised signatories (for example, two directors or a director and the company secretary) can sign; or
  
• One director can sign in the presence of a witness, who must then also sign and provide their details.
  

The same independence rules apply to the witness - they shouldn’t be a director, shareholder, or anyone with an interest in the transaction.

For very small companies where one person wears multiple hats, this often means finding an external witness - for example, your accountant, solicitor, or an unrelated employee.

Can Deeds Be Witnessed Online or Remotely?

This is an area of growing interest, especially for small business owners using e-signature platforms.

The Law Commission’s 2019 report confirmed that electronic signing of deeds is valid under existing law, but the witness must still be physically present when the signature is applied.

As of 2025, remote or video witnessing is not yet legally recognised for deeds in England and Wales. The government is reviewing potential reforms, but for now, the safest approach is to ensure witnesses are physically present.

What Happens If Witnessing Is Done Wrong?

If a deed is incorrectly executed - for example, witnessed remotely, by a family member, or by someone not actually present - it can have serious legal and commercial consequences.

• The deed could be invalid and unenforceable.
  
• The Land Registry may reject property registration.
  
• A lender might lose its security or refuse to release funds.
  
• You could face expensive delays re-signing or re-registering the document.
  
• In the worst cases, you might end up in a dispute or court claim over ownership or liability.
  

For small businesses, these risks can directly affect funding, property rights, and reputation.

Practical Checklist for Small Business Owners

Here’s how to get your witnessing right every time:

1. Check the document wording – it should clearly state “executed as a deed.”
   
2. Confirm authority – if signing on behalf of a company, ensure you’re an authorised signatory (director, company secretary, or properly appointed attorney).
   
3. Choose an independent witness – someone not related to or employed by your business.
   
4. Be physically together – the witness must see you sign in person.
   
5. Have the witness sign immediately, printing full name, address and occupation.
   
6. Keep records – note the date, time and place of execution; retain copies for your files.
   
7. Don’t rely on templates – make sure your deed has the correct execution block for your business structure.
   
8. Get legal advice – for high-value or property-related documents, a solicitor can confirm compliance before submission.
   

Supporting Documents for Compliance

Putting a few internal policies and documents in place can help small businesses avoid mistakes:

• Deed Execution and Witnessing Policy – outlines who can sign and witness on behalf of the business.
  
• Staff Handbook or Governance Manual – includes your equality, signing, and record-keeping standards.
  
• Authorised Signatories Register – lists directors and officers approved to sign deeds or contracts.
  
• Board Resolution or Workplace Agreement – formally delegates signing authority to specific people.
  
• Legal Compliance Checklist – verifies that each deed or mortgage is executed, witnessed and delivered correctly.
  

Even for small teams, these simple measures help maintain professionalism and demonstrate compliance if a dispute or audit arises.

When to Seek Professional Advice

It’s always wise to speak to a legal expert before signing a deed, especially if it involves:

• Business property or a commercial mortgage
  
• Personal or director guarantees
  
• Share transfers or complex financial arrangements
  
• Cross-border or electronic signatures
  

A legal expert can ensure the deed’s wording, witnessing, and delivery are all valid under UK law - saving you time, stress and money later.

Key Takeaways

• Deeds and mortgages require special execution rules under the Law of Property (Miscellaneous Provisions) Act 1989, Law of Property Act 1925, and Companies Act 2006.
  
• A valid witness must be over 18, independent, and physically present when you sign.
  
• Incorrect witnessing can render a deed invalid and cause serious financial or legal issues.
  
• Remote or video witnessing is not currently accepted for deeds in England and Wales.
  
• Small business owners should maintain clear internal policies, keep witness records, and seek legal advice before signing complex or high-value documents.
  

Need Help?

If your business regularly signs deeds, guarantees, or mortgage documents, it’s important to have the right processes in place.

Sprintlaw’s UK lawyers can review your signing procedures, draft or update your workplace agreements, and make sure your documents meet current UK law requirements.

You can reach us at 08081347754 or team@sprintlaw.co.uk for a free, no-obligations chat.