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Overdue invoice email templates

Free templates for chasing late payment: copy one, fill in your invoice number, amount and due date, and send. Start polite, get firmer over time, and stop the moment the client pays.

Want these sent automatically? Invoice Chaser sends the whole sequence through your own email server and stops when an invoice is marked paid.

1. Friendly reminder — due date

Subject: Friendly reminder: invoice [number] is due

Hi [name],

Just a friendly reminder that invoice [number] for [amount] was due on [due date].

If you have already paid, please ignore this message. Otherwise, you can pay at your earliest convenience.

Thanks,
[your name]
[business]

2. Firm follow-up — 7 days overdue

Subject: Following up: invoice [number] is overdue

Hi [name],

Invoice [number] for [amount] is now overdue (due [due date]). Please arrange payment as soon as possible, or reply to discuss.

You can pay here: [payment link]

Thanks,
[your name]
[business]

3. Final notice — 14 days overdue

Subject: Final notice: invoice [number]

Hi [name],

This is a final notice for invoice [number] for [amount], due [due date]. Please pay promptly or reply to resolve this.

You can pay here: [payment link]

Thanks,
[your name]
[business]

4. Quote follow-up — no reply yet

Subject: Quick check-in on your quote: [title]

Hi [name],

Just checking in on the quote I sent: [title] — [amount].

You can accept it here: [accept link]

Happy to adjust scope or timing if that helps.

Thanks,
[your name]
[business]

5. Thank you — payment received

Subject: Payment received — thank you

Hi [name],

Thank you — payment for invoice [number] ([amount]) has been received. Your account is up to date.

Thanks for your business,
[your name]
[business]

Questions

Frequently asked questions

What should I write in an overdue invoice email?

Keep it short and factual: invoice number, amount, due date, and a payment link. Start polite, get firmer over time, and never invent legal threats you will not follow through on.

How many follow-ups should I send?

Four is a good default: on the due date, then 3, 7 and 14 days later. Stop the moment the client pays.

Can I automate these?

Yes. Invoice Chaser sends these sequences automatically through your own email server — upload a CSV of unpaid invoices and it follows up until each one is marked paid.