Payment Reminder for Long-Term Clients

Example email

Hi [Client],

Hoping all's well. Just nudging invoice #1042 for [amount], which was due on [date]. I know you've always been great about payments, so I figured this one just slipped through the cracks.

Whenever you have a moment, a quick note on timing would help me plan the rest of [project].

Thanks as always,
[Your name]

When to use this template

This template is designed for invoices that are 14 days overdue. It strikes a polite, benefit-of-the-doubt tone that preserves the client relationship while gently surfacing the overdue invoice.

• ✓Opens with the invoice number or project name — not “I” or “I'm following up”
• ✓Asks one specific question that demands a concrete answer
• ✓Ends on a forward-moving note, not a passive sign-off

Template variations

Here's how this template adapts to different amounts and situations.

Use our free generator to create the exact version for your situation.

Frequently asked questions

When should I use this template?

Warm, personal reminder for established client relationships. This template works best for invoices that are 14 days overdue. It's designed to maintain good will while gently reminding the client.

Can I customize this email for my specific situation?

Yes. Click "Customize this template" below to open our free generator with the gentle nudge tone pre-selected. Add your client's name, invoice amount, and any context about the situation — the AI will rewrite the email to match perfectly.

How many times should I follow up on an unpaid invoice?

A standard escalation sequence has three steps: (1) a gentle reminder 1-3 days after the due date, (2) a firm follow-up 7-14 days later, and (3) a final notice at 21-30 days with clear consequences. After that, you may need to pause work or escalate to formal collections.