When you set up a company, you have to provide a name and registered office address to Companies House, which then issues a registration number. There are some restrictions (but not many) on the words that can be used in the company name and the registered office must be in the UK.
You are not obliged to use your company name as your trading name (ABC Ltd could trade as ‘Fun Factory’, for example). Likewise, your registered office may not be the address from which you normally do business.
But you do sometimes need to identify your company name, number and address.
The rules are the same for an LLP.
When to show the company name
A company must state its name, in legible lettering, on the following:
. all the company’s business letters;
. all its notices and other official publications;
. all bills of exchange, promissory notes, endorsements, cheques and orders for money or goods purporting to be signed by, or on behalf of, the company;
. all its bills of parcels, invoices, receipts and letters of credit
When to show the company number and registered office address
Business letters, order forms and all of company’s websites* must state:
. the company’s place of registration
. its registered number
. its registered office address
. if it is being wound up, that fact,
*A website is not a company’s website if its content is determined solely by persons other than the company or it does not relate to the company, its business or operations
And the VAT number?
If you are VAT registered, you must show your VAT number on all invoices.
It is not strictly necessary but builds credibility and aids clarity to also show your VAT number on your website and documents such as quotes and orders.