Payment follow-up

How to Follow Up on an Unpaid Invoice

A good payment reminder is clear, polite, specific, and easy for the client to act on.

1 min read 5 sections Updated 2026-05-21
Quick answer

A good payment reminder is clear, polite, specific, and easy for the client to act on.

Start with a simple reminder

The first reminder should assume the missed payment is an oversight. Mention the invoice number, due date, amount due, and payment instructions.

Escalate gradually

If the invoice remains unpaid, become more direct while staying factual. Keep a record of reminder dates and client responses.

  • Friendly reminder after the due date
  • Firm reminder if no response
  • Final reminder before changing service terms or seeking advice

Example wording

Friendly: 'Hi, just checking whether invoice INV-1042 made it through. It was due on May 15. Payment details are included below.'

Firm: 'Invoice INV-1042 is now overdue. Please send payment or reply with a payment date by Friday.'

Make payment easy

Include the amount due, due date, invoice number, accepted payment methods, and any link or bank details the client needs.

  1. 1 Start with a simple reminder
  2. 2 Escalate gradually
  3. 3 Example wording
  4. 4 Make payment easy
Create the document when you are ready

Use the free tool after checking the examples and payment guidance in this guide.

Open invoice generator