Invoice Reminder Email Templates [2025 Guide]

How to Write an Effective Invoice Reminder Email

Late payments are a recurring problem for SMEs. On average, businesses wait 13 extra days beyond the agreed payment terms. A well-written reminder email can make all the difference.

The 3 Types of Reminders

1. Preventive Reminder (before due date)

Subject: Friendly Reminder - Invoice [#] Due [date]

Hi [Client Name],

I wanted to remind you that invoice #[XXXX] for [XXX]€
is due on [date].

For your convenience, you can pay directly via this link: [link]

Feel free to reach out if you have any questions.

Best regards,
[Your name]

2. First Reminder (Day +1 to +7)

Subject: Invoice [#] Overdue - Payment Required

Hi [Client Name],

Invoice #[XXXX] for [XXX]€ was due on [date].

We haven't received your payment yet. Could this be an oversight?

You can proceed with payment via this link: [link]

Please contact me if you're experiencing any issues.

Best regards,
[Your name]

3. Final Notice (Day +15 to +30)

Subject: URGENT - Invoice [#] Overdue - Final Notice

Hi [Client Name],

Despite our previous reminders, invoice #[XXXX] for [XXX]€
remains unpaid for [number of days] days.

We request payment within 48 hours.

Beyond this deadline, we will be forced to initiate collection proceedings.

Payment: [link]

Regards,
[Your name]

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Tips to Maximize Your Payment Rate

1. Be professional but firm - No aggression, but clarity
2. Make payment easy - Add a “Pay Now” button
3. Follow up quickly - The longer you wait, the harder it gets
4. Stay legal - Follow proper debt collection practices

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