Payment Reminder Emails: Polite Templates for Each Stage
Most overdue invoices are paid after a clear, friendly reminder. These templates keep the tone professional while making the next step obvious.
By the Invoice Faster team at Digimarket Group SIA · Updated 3 November 2026
Principles
- Assume a mistake, not bad faith — invoices really do get lost.
- Always include the invoice number, amount, due date and how to pay.
- Re-attach the PDF so nobody has to search for it.
- Ask a specific question (“Could you confirm the payment date?”).
- Keep a record of every reminder.
1. Friendly heads-up (a few days before due)
Subject: Invoice [number] – due [date]
Hi [name],
Just a quick note that invoice [number] for [amount] is due on [date]. I’ve attached it again for convenience. Payment details are on the invoice.
Thanks, and let me know if you need anything else from me.
[Your name]
2. Due-date reminder
Subject: Invoice [number] due today – [amount]
Hi [name],
Invoice [number] for [amount] is due today. If it has already been paid, thank you — please ignore this message. If not, the PDF is attached and payment can be made to [bank details / link] using [number] as the reference.
Best regards,
[Your name]
3. One week overdue
Subject: Overdue: invoice [number] – [amount]
Hi [name],
I haven’t yet received payment for invoice [number] ([amount]), which was due on [date]. Could you let me know when I can expect it, or whether anything is holding it up — for example a missing PO number or approval?
Thanks,
[Your name]
4. Two to three weeks overdue
Subject: Second reminder: invoice [number] now [X] days overdue
Hi [name],
Invoice [number] for [amount] is now [X] days past its due date of [date]. Please arrange payment this week or reply with a payment date. As per our agreement of [date], [late-payment terms, only if agreed].
I’d be happy to have a quick call if that’s easier.
Regards,
[Your name]
5. Final notice
Subject: Final notice: invoice [number]
Hi [name],
Despite earlier reminders on [dates], invoice [number] for [amount] remains unpaid. If payment is not received by [date], I will need to [pause further work / take the next steps set out in our contract].
[Your name]
Beyond email
If emails go unanswered, a phone call to the client’s accounts-payable team often resolves things quickly. For persistent non-payment of significant sums, ask a lawyer or accountant about formal demand letters, statutory late-payment interest and small-claims options in your country.
Related: payment terms explained · how to get paid faster.