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How to finalise regulatory disclosures on business stationery

Professionalism starts with transparency: ensure your business communications include the mandatory legal details required by UK law.

The Bottom Line

To comply with the Companies Act and UK regulatory requirements, you must include specific identifying information on all "business stationery"—which includes your emails, formal letters, and your website. At a minimum, limited companies must display their registered business name, registered office address, and company registration number. If you are in a regulated profession like accounting or financial services, you must also clearly state your regulatory status to ensure transparency and build trust with your clients.

What you must include

The information required depends on your business structure, but the rules are strict. Failing to include these details can result in fines. Ensure the following are present:

  • Full Registered Name: Even if you use a "trading as" name (e.g., "Summit Books"), your official name (e.g., "Summit Accounting Services Ltd") must be visible.
  • Registered Office Address: This is the official address on record with Companies House. It must be clearly identified as your "Registered Office."
  • Company Number & Place of Registration: You must state your 8-digit number and where you are registered (e.g., "Registered in England and Wales" or "Registered in Scotland").
  • Regulatory Disclosure: If you are a member of a professional body, you must include a specific disclosure such as: "Regulated by [Body Name] for a range of investment business activities" or "Member of [Professional Body]."

Where to apply these disclosures

You don't need to clutter your brand design, but these details must be present on all formal business communications:

  1. Email Signatures: Place the legal block at the very bottom, beneath your personal contact details. It is standard practice to use a slightly smaller font size for this section.
  2. Letterheads and Invoices: These details usually sit in the footer of the page. It is essential that invoices carry these details to be legally valid.
  3. Website Footers: Most UK businesses place these disclosures in the global footer so they appear on every page. This is often the first place a regulator or savvy client will look.
  4. Order Forms and Quotes: Ensure any document that forms part of a contract includes your registered details.

Tips and Best Practices

While the requirements are functional, you can still maintain a professional look by following these tips:

Pro Tip: Create a "Standard Footer" document that contains your exact legal wording. Share this with your web designer and staff to ensure the wording is identical across every platform.

  • Legibility: You can use a smaller font (e.g., 8pt or 9pt) for disclosures to keep your stationery looking clean, but it must be clear and legible.
  • Sole Trader Rules: If you are a sole trader, you must display your own name and the business address on all stationery, even if you use a business name.
  • VAT Numbers: If you are VAT registered, you should also include your VAT registration number on all invoices and your website.
  • Audit Regularly: Set a reminder to check these disclosures whenever you move offices, change your legal structure, or renew your professional memberships.

Created by hatch. • Updated on April 30, 2026