Late Payment Reminder Email
Polite but firm email to remind clients about overdue invoices.
Author
AI Free Tools Editorial
Published
March 17, 2026
Updated
March 17, 2026
Read Time
Copy-ready template
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Subject: Invoice #[NUMBER] — Payment reminder Hi [Client Name], I hope you're doing well. I wanted to follow up on Invoice #[NUMBER] for [project/service description], which was due on [due date]. The outstanding amount is $[amount]. I understand things can slip through the cracks — would you be able to process this payment by [new deadline, 5-7 business days from now]? For your reference, I've re-attached the invoice. You can pay via [payment method]. Please let me know if there are any questions or issues on your end. Thank you, [Your Name]
💡 Pro Tip
Always include the invoice number in the subject line — it makes it searchable. Wait 3-5 days past due date before sending. If no response in 7 days, follow up shorter. After 3 attempts, mention late fees.
📌 When to Use This Template
When a client payment is 3+ days overdue. This version is for the first reminder — adjust tone for subsequent follow-ups.
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