Overdue Invoice Letter
A clear, professional first chase for an invoice that has slipped past its due date — firm enough to prompt action, measured enough to keep things cordial.
When to use this
Use this once an invoice is 7–21 days overdue. It’s your first proper chase: the payment is now clearly late, so the letter states that plainly, but there are no threats yet — just a courteous request and a short deadline.
Sample excerpt
Invoice #1042 for £1,800 was due on 15 August and remains unpaid. I'd be grateful if you could arrange payment within the next 7 days. If there's an issue with the invoice, please let me know so we can resolve it quickly.
Why it works
By this stage a soft nudge may have been ignored, so the overdue letter is more direct without becoming adversarial. It sets a concrete deadline and invites the client to flag any problem, which quietly removes their easiest excuse for silence. NudgeBadger builds it around your actual figures and dates in seconds.
Related guides
NudgeBadger provides tools, templates, and general guidance only. We are not solicitors, and nothing on this page — including this letter template — is legal advice. It's written to help you understand the process, not to tell you what to do in your specific situation. If your case is complex, high-value, or already disputed, speak to a qualified solicitor before relying on anything here.
NudgeBadger builds this letter around your invoice details in under a minute — professional, legally-aware, and free to try.