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Last updated: February 19, 2026

Invoice Email: Send Invoice Again: Templates + Subject Lines

Struggling with unpaid invoices? Resending the same generic follow-up often gets ignored. This guide provides context-specific email templates and subject lines to actually get your invoice paid.

On this page

• Quick template (short)
• Formal version
• Friendly version
• Firm version
• Subject lines
• Tips
• FAQ
• Personalized generator

Quick Template (Short)

Copy

Hi [[NAME]], just circling back on invoice [[REFERENCE]]. It appears unpaid in our system. Could you please process this at your earliest convenience? Thanks, [[YOUR_NAME]].

Formal Version

Copy

Dear [[NAME]], This is a polite follow-up regarding invoice [[REFERENCE]], which was originally sent on [Date, if known]. Our records indicate it remains outstanding. Kindly arrange for payment at your earliest convenience. Sincerely, [[YOUR_NAME]].

Friendly Version

Copy

Hey [[NAME]], hope you're having a good week! Just wanted to gently nudge you about invoice [[REFERENCE]]. Let me know if you need a fresh copy or have any questions. Best, [[YOUR_NAME]].

Firm Version

Copy

[[NAME]], this is a final notice for invoice [[REFERENCE]]. Payment is now critically overdue. Please remit full payment immediately to avoid further action. [[YOUR_NAME]].

Subject Lines (Pick one)

• Action Required: Invoice [[REFERENCE]] Still Pending
• Follow-up: Outstanding Invoice [[REFERENCE]] for [Your Business Name]
• Resending Invoice [[REFERENCE]] – Payment Needed

Tips

• Always re-attach the PDF invoice to the follow-up email.
• Check your spam folder; their reply might be filtered there.
• Include the invoice number [[REFERENCE]] in the email body's first line.

Related templates

More templates in the same category:

• Invoice Email: Send Invoice Again — Short, Formal, Friendly, Firm
• How to Write Invoice Email: Send Invoice Again (With Examples)
• Invoice Email: Request Payment Status Update: Templates + Subject Lines
• Invoice Email: Overdue Invoice Reminder — Short, Formal, Friendly, Firm
• Invoice Email: Request Payment Status Update: Templates + Subject Lines

FAQ

Q: How long should I wait before sending a 'resend invoice' follow-up?
A: Wait 7-10 business days after the original due date for a standard first follow-up.

Q: What if the client claims they never received the original invoice?
A: Apologize for the inconvenience, immediately resend it with this email, and ask for a confirmation of receipt.

Personalized Generator (Fill & Copy)

Fill in the fields to generate a ready-to-send invoice email. Example Invoice: Invoice #INV-7712.