Last updated: February 19, 2026
Invoice Email: Send Invoice Again: Templates + Subject Lines
Unpaid invoices haunting your cash flow? Resending them with precision can reclaim revenue without alienating clients. Discover tailored templates and subject lines that get results.
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Quick Template (Short)
Hi [[NAME]], following up on invoice [[REFERENCE]]. Please process payment soon. Thanks, [[YOUR_NAME]].
Formal Version
Dear [[NAME]], I am writing to follow up on invoice [[REFERENCE]], which remains unpaid. Kindly settle this matter at your earliest convenience. Contact me with any issues. Best regards, [[YOUR_NAME]].
Friendly Version
Hey [[NAME]], quick reminder about invoice [[REFERENCE]]. No rush, but when you can pay, it'd help a lot! Cheers, [[YOUR_NAME]].
Firm Version
[[NAME]], invoice [[REFERENCE]] is critically overdue. This is a final demand for immediate payment before escalation. [[YOUR_NAME]].
Subject Lines (Pick one)
- Action Needed: Invoice [[REFERENCE]] Still Outstanding
- Second Notice: Payment for Invoice [[REFERENCE]] Required
- Urgent: Final Reminder for Invoice [[REFERENCE]]
Tips
- Resend invoices 3-5 days after the due date for optimal response.
- Include the original invoice date and amount in every follow-up.
- Change subject lines each time to avoid being ignored.
Related templates
More templates in the same category:
FAQ
Q: How many follow-up emails should I send before withdrawing services?
A: Send 2-3 polite reminders, then consider service suspension if unpaid.
Q: What if the client claims they never received the original invoice?
A: Resend the invoice with delivery confirmation and request acknowledgment.
Personalized Generator (Fill & Copy)
Fill in the fields to generate a ready-to-send invoice email. Example Invoice: Invoice #INV-7712.
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