Payment plan offer prompt: free ChatGPT template
Updated · By Robert Breen
Use this when a client can't pay an overdue balance at once and you're willing to split it. You decide the amounts and dates; the AI writes a clear, friendly offer around them. The one risk is arithmetic: AI can quietly round, recalculate or "fix" a schedule. This prompt tells it to copy your numbers exactly and to flag, not fix, a schedule that doesn't add up.
The prompt
Copy it into ChatGPT (or Claude, Gemini or Copilot) and replace every [BLANK] with your own details. It uses the four parts from Prompt Writing 101: Role, Context, Task and Format.
Role: You are writing for [BUSINESS] to a client who owes [BALANCE] on overdue invoices. You are friendly, clear and practical, and you want this to work for both sides. Context: The plan I'm offering, exactly: [PLAN TERMS]. Conditions: [CONDITIONS]. Copy every amount and date exactly as written. Do not recalculate, round, add interest or fees, or change any term. If the installments don't add up to the balance, don't fix it; tell me above the email. Task: Write an email to [CLIENT NAME] that thanks them for working with us on this, lays out the plan as a simple schedule, explains the conditions in plain words, and asks them to reply "I agree" or call to talk it over. Format: Start with one line for me: "Check: installments total $X; balance is $Y." Then the subject line, then the email, under 160 words. Show the schedule as one line per payment: date, then amount. No emoji, no pressure words, no legal language.
Fill in the blanks
[BUSINESS]- Your business name and what you do.
[BALANCE]- The total overdue amount and the invoices it covers.
[PLAN TERMS]- Each installment's date and amount, decided by you. Do the math before you paste it.
[CONDITIONS]- Anything that applies while the plan runs: how to pay each installment, whether new invoices stay on normal terms, and what you'll do if a payment is late (a call, not a threat).
[CLIENT NAME]- The client contact's name.
Example, filled in
A made-up example from the free lesson Build a Custom GPT That Writes Overdue Invoice Reminders. The lesson's test case is an $850 invoice that is 45 days overdue. Maple Street's made-up policy says to offer a short call or a payment plan at that stage, and the client asked to split it.
Role: You are writing for Maple Street Bookkeeping, a small bookkeeping firm, to a client who owes $850 on overdue invoice MS-1090. You are friendly, clear and practical, and you want this to work for both sides. Context: The plan I'm offering, exactly: $300 on October 10, $275 on October 24, $275 on November 7. Conditions: pay each installment with the Pay Now link or by check, as usual. New monthly invoices are still due 30 days after the invoice date. If a payment is more than a week late, I'll call to talk about it. Copy every amount and date exactly as written. Do not recalculate, round, add interest or fees, or change any term. If the installments don't add up to the balance, don't fix it; tell me above the email. Task: Write an email to Owen Brooks of Brooks Cabinetry that thanks them for working with us on this, lays out the plan as a simple schedule, explains the conditions in plain words, and asks them to reply "I agree" or call to talk it over. Format: Start with one line for me: "Check: installments total $X; balance is $Y." Then the subject line, then the email, under 160 words. Show the schedule as one line per payment: date, then amount. No emoji, no pressure words, no legal language.
What a good answer looks like
- A first line that reads "Check: installments total $850; balance is $850."
- Three schedule lines with the exact dates and amounts you gave, nothing rounded.
- Conditions in everyday words, including that new invoices stay on normal terms.
- A warm close that makes agreeing easy, with no "failure to comply" language.
How to check it before you use it
An AI draft can sound right and still say something you never told it. Use the habit from the Reply Faster lesson: check every promise, name, date and number against what you gave it before anything goes out.
- Add the installments yourself. Don't rely on the AI's check line alone; it is a self-verification step, not proof.
- Compare every date and amount in the email with your plan. One wrong digit becomes the client's version of the deal.
- Make sure the late-payment condition is something you will actually do, and that it isn't a threat.
- If you need a signed agreement rather than an email "I agree," that is a separate document. Ask your accountant or attorney what you need.
Why this prompt works
Putting the arithmetic check at the top of the Format makes the AI show its work before it writes, so a mismatch is the first thing you see. The Context forbids rounding and new terms, which keeps the email a copy of your decision rather than the AI's idea of a fair plan. If the client doesn't respond at all, see the final notice prompt.
Practice it in the free lesson
Build a Custom GPT That Writes Overdue Invoice Reminders: See why generic prompts give generic results, then build a Custom GPT that follows your collections policy and writes polite, firm reminder emails for overdue invoices. You do every step yourself in a practice copy of ChatGPT, and nothing touches your real accounts.
Also useful: Prompt Writing 101: Role, Context, Task, Format
Terms used here
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