UK Invoice Generator

Searched for as an invoice generator UK, a UK invoice template or a free invoice maker, or a VAT invoice template. Searched for as an invoice template UK word document, an invoice template UK excel sheet, a proforma invoice word template, a commercial invoice template UK, a freelance invoice template UK or a freelance writer invoice template, the answer is the same: a form that produces the finished document rather than a file you have to edit around. A self employed invoice template UK search, an invoice template UK self employed search and a free invoice template UK PDF search all land in the same place. It builds a self employed invoice, a sole trader invoice, a limited company invoice or a proforma invoice sample from the same form: the difference is which fields you fill in, not which tool you need. This is a UK tool: it uses pounds, UK date order, and the fields HMRC requires on a VAT invoice rather than an American equivalent. It is an invoice generator UK free of charge, with no signup and no watermark, and it does the job of the self employed invoice book a lot of sole traders still buy from a stationer.

What this generator produces #

One tool covering the documents people go looking for under several different names. A British invoice template, a VAT invoice sample, a sole trader invoice template UK businesses can actually use, a sample proforma invoice format, or a proforma invoice template. The format of proforma invoice and standard invoice differ only in the wording and the payment status, so the generator switches between them rather than making you start again.

Pro forma is also written as two words. Pro forma invoice template and proforma invoice template mean the same document, and the generator labels it correctly either way.

Wanting a proforma invoice template Word file? Use the Copy as text button and paste it straight into Word or Google Docs, where you can restyle it and keep it as your own template. Print or save as PDF gives you a finished document without the round trip.

UK invoice requirements #

The invoice requirements UK businesses have to meet are set by HMRC and they are shorter than most people expect. Every invoice, whether or not you are VAT registered, needs:

• A unique identification number
• Your business name, address and contact information
• The customer's business name and address
• A clear description of what you are charging for
• The date the goods or services were supplied
• The date of the invoice
• The amount being charged, itemised
• The VAT amount, if applicable
• The total owed

Then, depending on how you trade:

• Sole trader: your own name as well as any trading name, and an address where legal documents can be delivered. That is the only difference between a sole trader invoice template and a company one.
• Limited company: the full company name exactly as it appears on the certificate of incorporation. If you name any director on the invoice you must name all of them, which is why most companies name none.

Full, simplified and modified VAT invoices #

Proforma invoice, and why the wording matters #

A proforma invoice is a quotation set out in the shape of an invoice. It is not a demand for payment, it does not go in your sales records, and it is not a VAT invoice. Your customer cannot use it to reclaim VAT.

HMRC advises that a proforma should be clearly described as such and endorsed "This is not a VAT invoice". The generator above adds that line automatically whenever you select proforma, because leaving it off is the single most common mistake with these documents.

Once the supply actually happens you must still issue a proper VAT invoice. The proforma does not replace it.

Proforma invoice vs invoice #

The proforma invoice vs invoice distinction is about status, not layout. Both can look identical on the page.

Use a proforma to tell someone what something will cost, and to request payment up front without creating a tax point. Issue the real invoice once the supply happens.

Invoice numbering and invoice number meaning #

The invoice number meaning is simply the unique reference that identifies one invoice, and for VAT invoices the number must be sequential and completely unique. You cannot repeat a number, even in a different tax year. A gap in the sequence invites a question, so a cancelled invoice should be kept and marked cancelled rather than deleted and the number reused.

A prefix is fine and often useful, for example INV-2026-0001, as long as the sequence itself is unbroken.

Common questions #

What must a UK invoice include?

A unique identification number, your business name, address and contact details, the customer name and address, a clear description of what is being charged for, the supply date and the invoice date, the itemised amounts and the total owed, plus the VAT amount if you are VAT registered.

What is the difference between an invoice and a proforma invoice?

A proforma is a quotation in invoice form. It is not a demand for payment and it is not a VAT invoice, so the customer cannot use it to reclaim VAT. HMRC advises it should be clearly marked "This is not a VAT invoice". You must still issue a real VAT invoice once the supply is made.

What must a full VAT invoice show?

A unique sequential number, your name, address and VAT registration number, the invoice date, the tax point if different, the customer name and address, a description with quantity and unit price, the VAT rate per item, the total excluding VAT, the VAT amount and the total including VAT.

When can I use a simplified VAT invoice?

For supplies under £250 if you are not a retailer. It needs your name, address and VAT number, the invoice date, a description, the VAT rate and the total payable including VAT. It does not need the customer details or a separate VAT figure.

Do invoice numbers have to be sequential?

For VAT invoices, yes. Numbers must be sequential and completely unique, and cannot be repeated even across different tax years. A gap in the sequence needs an explanation, so cancelled invoices should be retained rather than deleted.

Working in construction? A CIS invoice needs the labour and materials split out. The CIS calculator works out the deduction, and this guide covers what counts as materials.