Template
Unpaid invoice reminder email templates
Use a short first reminder when the invoice is newly due, then switch to firmer overdue wording if the client still does not pay.
- Best use
- First reminder and early overdue follow-up
- Keep it
- Short, factual, and easy to action
- Next step
- Escalate if the reminder is ignored
A good unpaid invoice reminder email should be clear, short, and easy to act on. The goal of the first message is payment, not a long explanation.
If that reminder is ignored, the next email should sound firmer and make the overdue status obvious.
Template: first reminder
Subject: Invoice [number] is due
Hi [Client Name], I am following up on invoice [number] for [amount], which is now due. Please let me know if payment has already been scheduled. If not, I would appreciate payment as soon as possible. Thank you.
Template: overdue follow-up
Subject: Overdue invoice [number]
Hi [Client Name], invoice [number] for [amount] is now overdue. Please confirm payment status and arrange settlement promptly. If there is an issue on your side, reply today so we can resolve it quickly.
Why these templates work
- They state the invoice details clearly.
- They ask for action instead of writing around the issue.
- They stay calm and professional.
- They leave room to escalate later if the invoice is ignored.
When to stop using reminder language
If the client keeps ignoring the invoice, repeating the same reminder template stops being useful. That is the point to move into a firmer overdue message and then a final notice.
Keep going
Each page below tackles the next question a buyer or researcher usually asks.
Next step
Turn these templates into a timed recovery workflow
GetDue automates reminder timing and keeps the next stages ready when a client ignores earlier emails.