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Set up a simple system so nobody owes you for long

You only notice unpaid invoices when money's tight, then chase awkwardly. Get a polite reminder schedule, a tracker and automatic reminders so chasing happens without you thinking about it.

Updated 17 Oct 2026

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The prompt · ChatGPT

Help me set up a simple credit control system.

My business: [what you do]
How I invoice: [app or document]
Payment terms: [days]
Who usually pays late: [types of customer]
How firm I want to be: [friendly, firm, very firm]

First ask me up to 4 short questions. Wait for my answers.

Then:
1. A reminder schedule: before due, on the day, 7 days late, 14 days late, final, with the exact wording for each.
2. A tracker layout: customer, invoice, amount, due date, days late, last chased, next step.
3. A formula for days late and a colour rule.
4. When to phone instead of email, with a short phone script.
5. The GOV.UK page on late payment interest and when it applies to business customers.

Only use what I've told you, leave blanks for anything I haven't given, and don't invent facts or figures. UK English.

For GOV.UK late commercial payments interest page, use web search and name the page you used. If it doesn't search on its own, open View all tools and choose Search.

Stay in this ChatGPT chat. Do not turn on apps or connectors, and do not use memory from another chat.

A short example

Fill the blanks, then paste. what you do: a short note you already have. app or document: a short note you already have. Leave the rest of the prompt as written.

This does not give tax advice. The books stay in the accounting system.

The prompt · Gemini

Help me set up a simple credit control system.

My business: [what you do]
How I invoice: [app or document]
Payment terms: [days]
Who usually pays late: [types of customer]
How firm I want to be: [friendly, firm, very firm]

First ask me up to 4 short questions. Wait for my answers.

Then:
1. A reminder schedule: before due, on the day, 7 days late, 14 days late, final, with the exact wording for each.
2. A tracker layout: customer, invoice, amount, due date, days late, last chased, next step.
3. A formula for days late and a colour rule.
4. When to phone instead of email, with a short phone script.
5. The GOV.UK page on late payment interest and when it applies to business customers.

Only use what I've told you, leave blanks for anything I haven't given, and don't invent facts or figures. UK English.

For GOV.UK late commercial payments interest page, use Google Search and name the page you used.

Stay in this Gemini chat. Leave extensions off, including Gmail and Drive.

A short example

Fill the blanks, then paste. what you do: a short note you already have. app or document: a short note you already have. Leave the rest of the prompt as written.

1

You describe how you invoice and who usually pays late.

2

The assistant asks your terms and how firm you want to be.

3

You get a reminder schedule with the wording for each step, a tracker layout and set-up steps for automatic reminders.

What happens

Use Gemini to set up a simple system so nobody owes you for long

You only notice unpaid invoices when money's tight, then chase awkwardly. Get a polite reminder schedule, a tracker and automatic reminders so chasing happens without you thinking about it.

Tools

Paste the prompt, fill the blanks, copy the draft.

  • Gemini — required. Drafts from the text you paste. Nothing is sent.

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