Write a polite 3-step overdue invoice reminder sequence

Chasing late invoices is awkward, so reminders go out late, inconsistently, or not at all.

In short: Write a polite 3-step overdue invoice reminder sequence is a beginner finance recipe that uses ChatGPT, Claude, Gmail. Estimated cost: Free tier works. Status: tested on 2026-10-14.

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prompt.txt

Write a 3-email reminder sequence for an overdue invoice.
Details: business {BUSINESS}, client type {CLIENT_TYPE}, invoice {INVOICE_NO}, amount {AMOUNT}, due date {DUE_DATE}, payment link or method {PAY_METHOD}, late-fee policy {POLICY or 'none'}.
Email 1 (3 days late): friendly nudge, assume it was missed.
Email 2 (10 days late): firmer, restate the amount and ask for a payment date.
Email 3 (21 days late): final notice, mention the late-fee policy only if one exists, and offer a call.
Each under 120 words with a clear subject line. Rules: no threats, no legal language unless it's in my policy, and keep every amount and date exactly as given.

Setup steps

Fill in the invoice details (no personal client details needed).
Generate the three emails and save them as Gmail templates.
Send Email 1 three days after the due date and set reminders for days 10 and 21.
Stop the sequence as soon as payment arrives.

#small-business#invoicing#cash-flow#email

Costs are rough estimates based on published model/API pricing and will vary. Fill in placeholders like {THIS} yourself.

Write a polite 3-step overdue invoice reminder sequence

Setup steps

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