Free Invoice Generator — no signup, no watermark

How to invoice as a UK freelancer

A valid invoice is simply a clear request for payment — but getting the details right keeps you compliant, speeds up payment, and looks professional. Fill in the fields above and the preview updates live; when it looks right, download the PDF and send it. Everything runs in your browser, so none of your client or bank details are uploaded or stored anywhere.

What every UK invoice should include

• The word "Invoice" and a unique invoice number (e.g. INV-0001) — numbers must be sequential and never reused.
• Your name/business name and address, plus your client's name and address.
• The invoice date and the date the goods or service were supplied (the "supply date").
• A clear description of each item, the quantity, the unit price and the line total.
• The total amount owed, and your payment terms (e.g. "payment due within 30 days") and bank details.

If you're VAT registered

Once you're VAT registered you must issue a VAT invoice: show your VAT registration number, the VAT rate applied to each line (usually 20%, sometimes 5% or 0%), the total VAT, and both the net and gross totals. This tool lets you set the VAT rate per line and totals it for you. Not registered yet? Leave VAT at 0% — you don't charge VAT until you register (the compulsory threshold is £90,000 of taxable turnover).

Invoice numbering and record-keeping

Keep your invoice numbers sequential so you (and HMRC) can see none are missing. You must keep copies of the invoices you send for at least 6 years. Because this generator stores nothing, save or back up the PDF yourself after downloading.

Getting paid faster

State your payment terms clearly, add your bank details and a payment reference, and send the invoice promptly. If a client pays late, you have a statutory right to charge interest and a fixed recovery fee on commercial debts — but a clear, professional invoice with unambiguous terms is the simplest way to avoid the problem.