Get my agent

Overdue invoice reminder

A firm, polite reminder that gets paid without burning the relationship.

Last tested 2026-10-19 Its example inputs were run through Claude Haiku 5.5, and an AI judge (Jev) scored the reply 93/100 for following the rules and doing the task.

Your details
⌘ Enter
Prompt previewUpdates as you type

Fill in the required fields, then build your prompt.

Free. Run it here sends the prompt through our server to Claude and shows the draft on this page (5 runs a day free, 100 on a paid plan); we don't store it. Open in ChatGPT, Claude, or Grok sends the prompt to that tool instead. Sign in there first, or the prompt box may come up empty; if it does, use Copy and paste it in.

Example output

I wrote this by hand on 2026-10-19 from the made-up inputs below, to show what a good result looks like. Your results will vary, so read every draft before you use it.

Example inputs
  • Invoice number, amount, due date: #1042, $480, due Oct 1
  • Earlier reminders (dates): Oct 8
  • What happens next if unpaid: Pause service on Nov 1
Subject: Invoice #1042 is past due

Hi [Name],

Invoice #1042 for $480 was due October 1. I sent a reminder on October 8 and haven't seen payment yet.

You can pay here: [payment link].

If there's a problem with the invoice, reply and we'll sort it out. If it isn't paid by November 1, I'll need to pause service until it is.

Thanks,
[Your name]

AI drafts can be wrong. Check every fact, name, and number before you send anything. Free: build prompts with no limit and 5 AI runs a day. A paid plan: 100 runs a day, 1,000 checks a day, batch runs for 50 contacts.

More for small business owners