Practical UK invoicing help, without the accounting-software jargon.
Use these guides when you need a clear answer about creating, sending or keeping an invoice. They are written around the real decisions freelancers, sole traders and small service businesses run into, with official UK guidance linked where it matters.
Content is reviewed against current UK guidance. Latest library review: 7 September 2026.
Getting invoices right
6 guidesUK invoice requirementsThe information a UK business invoice should show, plus sole trader, company, VAT and payment-detail considerations.How to make an invoiceA step-by-step UK guide to invoice numbers, business and customer details, dates, line items, totals and payment instructions.UK invoice exampleA simple annotated invoice example showing where the key details, totals, due date and payment instructions can appear.Invoice numberingA practical approach to unique, consistent invoice numbers without making the system complicated.UK invoice payment termsHow 7, 14 and 30 day terms, explicit due dates and clear payment instructions help customers understand when to pay.Bank details on invoicesWhether bank details are required and how to show account name, sort code, account number and payment reference clearly.
Business type & tax
2 guidesRecords & admin
1 guidesPut it into practice
Create the invoice now — or let Klamic remember the repetitive parts.
The free invoice generator works without an account. If invoicing is a regular job, Klamic saves your business details, customers and common services and keeps your invoice history together.