Displaying a sole trader or partnership business name
If you are a sole trader or partnership, your business name, your own name, or the partners' names and business address must be clearly displayed in most cases:
wherever you run your business and deal with customers or suppliers
on all business letters, orders, payments, invoices, receipts and other business documents
Displaying a name online
If your business has a website, you must display:
general information about your business - including business name, address, email address, VAT registration number (if applicable)
details of any relevant professional body that you belong to or any authorisation scheme to which your service is subject