How to create an invoice
Fill in your business details, your client's details, an invoice number and dates, then add your line items. The invoice preview updates as you type. When you're happy, click “Download / Print PDF” and use your browser's print dialog to save it as a PDF or print it. Everything happens in your browser — none of your details are uploaded or stored.
What a UK invoice should include
A clear invoice usually shows: the word “invoice” and a unique invoice number; your name/business name and contact details; your client's name and address; the invoice date; a description of goods or services with quantities and prices; and the total due. If you are VAT-registered you must also show your VAT number, the VAT rate and the VAT amount — you can add VAT using the rate field.
Getting paid on time
Set clear payment terms on every invoice — for example "payment due within 30 days" — and state the actual due date rather than leaving it vague. For business-to-business work, if a client pays late you're generally entitled to charge statutory interest under the Late Payment of Commercial Debts rules, currently 8% plus the Bank of England base rate, along with a fixed sum towards recovery costs. Making the terms explicit up front makes chasing a late payment far easier.
Numbering and keeping records
Give every invoice a unique, sequential number so nothing is duplicated or missed, and keep a copy of each one. HMRC requires you to keep business records — including the invoices you issue — to support your tax return, so a tidy, consistent system saves real stress at tax time.
Sole traders and limited companies
A sole trader invoices in their own or their trading name. A limited company must also show its registered company name and, usually, its company number and registered office address. If you're VAT-registered, your invoice becomes a VAT invoice and must additionally show your VAT number, the rate charged and the VAT amount — add the VAT rate in the tool above and it will work this out for you.
Frequently asked questions
Is this invoice generator free?
Yes. It's free to use with no signup, and you can create as many invoices as you like.
What should a UK invoice include?
A unique invoice number, your details, your client's details, the date, a description of the work with quantities and prices, and the total. VAT-registered businesses must also show their VAT number and the VAT charged.
Do I need to charge VAT on my invoice?
Only if you are VAT-registered (generally required once turnover exceeds £90,000). If so, add the VAT rate in the tool and it will show the VAT and gross total.
Is my data private?
Yes. The invoice is built entirely in your browser and nothing is uploaded — your business and client details never leave your device.