Is the invoice generator really free?

Yes. There is no account, no watermark and no limit on how many invoices you create. Fill in the form, then save or print the result.

How do I save my invoice as a PDF?

Press "Download PDF / Print". Your browser opens its print window. Change the destination to "Save as PDF" (or "Microsoft Print to PDF" on some Windows setups) and save the file. Only the invoice itself is printed, not the form or the rest of this page.

Does it save my details for next time?

No. Everything stays in your browser while the page is open and is cleared when you refresh or leave. Save a PDF of every invoice you send, and keep a note of your last invoice number so the next one follows on.

Should I add VAT to my invoice?

Only if your business is registered for VAT. If you are not registered you must not charge VAT, so leave the "Add VAT" switch off. If you are not sure whether you should be registered, check GOV.UK or speak to an accountant.

Where do I put my VAT number or company number?

The form does not have a dedicated field for them, so add them in the Notes box. Notes appear at the bottom of the printed invoice, alongside your payment terms and bank details.

What payment terms should I use?

That is up to you and your client, but state them clearly. Set a due date in the Invoice details section and write something simple in Notes, such as "Payment due within 14 days by bank transfer", followed by your account name, sort code and account number.

Tools›Invoice Generator

Free Tool

Invoice Generator

Fill in your details, add your line items and print or save as PDF. Free, no login, no watermark.

Your details

Business name

Address

Phone

Bill to

Client name

Address

Invoice details

Invoice number

Issue date

Due date

Add VAT

Line items

DescriptionQtyUnit priceTotal

Notes (optional)

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How to create an invoice

1Under "Your details", enter your business name, address, email and phone number.
2Under "Bill to", enter your client's name and address.
3Under "Invoice details", check the invoice number (it starts at INV-001), the issue date (it defaults to today) and add a due date.
4If you are VAT registered, switch on "Add VAT" and choose 20% or 5%. Leave it off if you are not registered.
5Add your line items: a description, quantity and unit price for each. Use "+ Add line" for more rows and the remove button to delete one. Totals update as you type.
6Use the Notes box for payment terms and bank details, then press "Download PDF / Print". In the print window, choose "Save as PDF" as the destination to get a PDF file, or pick a printer for a paper copy.

What a UK invoice should include

An invoice is a formal request for payment and a record for your accounts. Missing details slow down payment, especially with business clients whose accounts team will send it back if something is unclear. Before you send one, check it has the following.

Your details

Your business name, address and contact details. If you trade as a limited company, use your full registered company name.

Your customer's details

The name and address of the person or business you are billing.

A unique invoice number

Each invoice needs its own number, and the sequence should not repeat or skip around.

Dates

The date of the invoice, plus the date the work was done or goods supplied if that is different.

A clear description

What you are charging for, in words your customer will recognise when they come to pay.

Amounts

The price of each item, the subtotal and the total amount owed.

VAT details (only if registered)

If you are VAT registered, show your VAT number, the rate and the VAT amount. If you are not registered, do not add VAT at all.

Tips for getting paid faster

Write line item descriptions your client will understand at a glance. "Replace kitchen tap and isolation valve, 12 March" is far easier to approve than "Plumbing work". If the job ran over several days, list each visit or stage as its own line.

Always put your bank details and a clear due date on the invoice, so nobody has to email you to ask how to pay. Send the invoice as soon as the work is finished, while the job is fresh in the client's mind, and keep a copy of every PDF in one folder with the invoice number in the file name.

Keeping your invoice numbers in order

The generator starts at INV-001, but you can type any number you like. Pick a format and stick with it, such as INV-001, INV-002 and so on, or include the year (2026-001). Because this tool does not store anything, keep a simple list of what you have issued so you never send two invoices with the same number.

Invoice generator FAQs

Working out prices first? Try our other free business tools, including the VAT calculator, or get a free website analysis to see how your site could win more work.

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