Polite Payment Reminder Email to Customer
When a client hasn't paid, a professional reminder helps you get paid without damaging the relationship.
First Reminder
Hi [Name], I hope you're doing well! I wanted to send a quick reminder that Invoice #[number] for $[amount] was due on [date]. I understand things can get busy, so I wanted to check if you received it. If you have any questions about the invoice or need to discuss payment arrangements, please let me know. I've attached the invoice again for your convenience. Thanks, [Your Name]
Suggested Subject Line
Payment Reminder - Invoice #[number]
Alternative Versions
Short & Direct Version
Hi [Name], Quick reminder: Invoice #[number] for $[amount] was due on [date]. Please process at your earliest convenience. Thanks, [Your Name]
Warmer Version
Hey [Name]! Hope you are having a good week. Just a friendly nudge — Invoice #[number] for $[amount] was due on [date]. Totally understand if it slipped through the cracks! Let me know if you have any questions about it. Attached again for easy reference. Thanks so much, [Your Name]
When to Use This
Send this 1-3 days after the payment due date as a gentle first reminder.
What Not to Say
Don't threaten legal action in the first reminder, or assume they're trying to avoid payment.
Follow-Up Message
If You Need to Follow Up
Second reminder (one week later): "Hi [Name], I'm following up on my previous email about Invoice #[number] for $[amount], which is now [X days] overdue. If there's an issue with the invoice or if you need to set up a payment plan, please let me know as soon as possible. Otherwise, I would appreciate payment by [specific date]. Thank you, [Your Name]"