Overdue Invoice Email Template (Copy/Paste + Examples)

Late invoices happen. What kills cash flow is the awkward follow-up loop. Use the templates below to get a payment date fast—without burning the relationship.

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Full multi-email sequence plus templates and variations.

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What to include in an overdue invoice email (so it actually works)

Invoice number + amount + due date
Ask to confirm the payment date
Payment link/details
Clear next step (reply with date or pay today)

Subject lines that get opened (without sounding aggressive)

Quick check-in on invoice #{InvoiceNumber}
Payment date confirmation — invoice #{InvoiceNumber}
Following up: invoice #{InvoiceNumber} (due {DueDate})
Outstanding invoice #{InvoiceNumber} — please advise
Can you confirm payment timing?

Email templates

Template 1 — Friendly

Subject: Quick check-in on invoice #{InvoiceNumber}

Hi {Name},

Just a quick check-in regarding invoice #{InvoiceNumber} for {Amount}, due on {DueDate}.
Could you please confirm the expected payment date?

If payment has already been sent, feel free to ignore this and let me know the reference.

Thanks,
{YourName}
{Company}

Template 2 — Firm

Subject: Payment date confirmation — invoice #{InvoiceNumber}

Hi {Name},

Invoice #{InvoiceNumber} ({Amount}) is now overdue since {DueDate}.
Can you confirm the payment date by EOD {DayOfWeek}?

Payment details are included below:
{PaymentDetails}

Thanks,
{YourName}

Template 3 — Final

Subject: Final notice: invoice #{InvoiceNumber}

Hi {Name},

This is a final reminder that invoice #{InvoiceNumber} for {Amount} remains unpaid (due {DueDate}).
Please confirm today whether payment will be made, and on what date.

If we don’t hear back by {DeadlineDate}, we’ll proceed with the next steps outlined in our agreement.

Regards,
{YourName}
{Company}

Follow-up schedule (simple and effective)

Day 1 overdue: Friendly check-in
Day 4–5: Firm ask for payment date
Day 10–14: Final notice with deadline

FAQ

80–140 words. Include invoice #, amount, due date, and ask for the payment date.

Overdue Invoice Email Template (Copy/Paste + Examples)

What to include in an overdue invoice email (so it actually works)

Subject lines that get opened (without sounding aggressive)

Email templates

Follow-up schedule (simple and effective)

FAQ

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