Invoice properly, know exactly who owes what and for how long, and send a reminder that names the invoices.
9 tools · 8 free with no account · 1 free to try with one
Most unpaid invoices are not disputes. They are invoices that were never chased, or chased with an email saying "your account is overdue" that the recipient could not act on because it did not say which invoice. The fix is unglamorous: an ageing report and a letter with numbers in it.
Start with the document being right, then know the position, then ask — with the tone stepping up only as far as it needs to.
They list the customer’s overdue invoices with dates, amounts and how many days late each is, then a total, then what you would like to happen. The tone steps up on its own — a note at a fortnight, a firmer letter at six weeks, a final one after that — and none of them threatens legal action. They are drafts with your name on them; read them before sending.
Can I charge interest on a late payment?
In the UK there is a statutory right to interest and a fixed sum on a late commercial payment, and the page links to the gov.uk guidance. The tool does not calculate it, because whether you are entitled and at what rate depends on your contract — but whatever terms line you type is printed under every letter.
