Overdue invoice reminder templates (email and SMS)
A good overdue invoice reminder is short, names the invoice number, amount and due date, includes a link or bank details to pay, and asks for a clear next step. Start friendly, get firmer over time, and keep every message polite.
Friendly reminder (SMS)
Hi [Name], it's [You] from [Business]. Just a reminder invoice [number] for $[amount] was due on [date]. You can pay here: [link]. Thanks!
Follow up (SMS)
Hi [Name], following up on invoice [number] for $[amount], now [x] days overdue. Could you let me know when it'll be paid? Link: [link]
Firm reminder (email)
Subject: Invoice [number] is now overdue
Hi [Name], invoice [number] for $[amount] was due on [date] and is now [x] days overdue. Please arrange payment by [date]. You can pay at [link] or by bank transfer to [details]. If there's an issue with the invoice, please reply and let me know. Thanks, [You]
Final reminder (email)
Subject: Final reminder: invoice [number]
Hi [Name], despite earlier reminders, invoice [number] for $[amount] remains unpaid. Please pay by [date]. If we don't hear from you, we'll need to consider our next steps. If you're having trouble paying, let's talk about it. Regards, [You]
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Sources
Last checked 6 November 2026.
Questions people ask
- What should an overdue invoice reminder include?
- The invoice number, amount, due date, a link or bank details to pay, and a clear next step.
- How firm should the first reminder be?
- Keep the first one friendly. Most late payers just forgot. Get firmer over time and stay polite.