How we score tools →

Wave is free accounting software for UK freelancers and very small businesses — invoicing, expense tracking, and receipt scanning at no cost. Revenue comes from optional paid add-ons like Wave Payments and Payroll. VAT and MTD support exist, though UK-specific features are thinner than FreeAgent. It integrates with Stripe and PayPal. Wave is GDPR compliant. The price is unbeatable for UK side hustles and freelancers just starting out; businesses that need robust MTD and UK payroll should look at FreeAgent or Xero.