How to organize overdue invoices and follow up politely Original FacturaOS planning aid — reviewed October 4, 2026. Replace every bracketed field before sending a message. Verify the recipient, balance, currency, and payment record first. These messages and review dates are managed manually by you. WEEKLY BALANCE REVIEW — COPY FOR EACH INVOICE [ ] Original invoice and customer-facing number checked [ ] Recipient and due date confirmed [ ] Confirmed payments checked against supporting records [ ] Remaining balance verified; currencies kept separate [ ] Reported payment or billing question investigated before reminder [ ] One person assigned to the next action [ ] Actual reply or payment recorded; promise kept separate from receipt Review date: ____________________ Customer: ____________________ Invoice number: ____________________ Agreed due date: ____________________ Currency: ____________________ Invoice total: ____________________ Confirmed paid amount: ____________________ Remaining balance: ____________________ Payment date and reference: ____________________ Last contact date: ____________________ Customer reply or billing question: ____________________ Responsible person: ____________________ Next action: ____________________ Next review date: ____________________ Example: USD 480 total minus USD 180 confirmed paid = USD 300 remaining. A promise to pay does not change the confirmed paid amount. Manual age groups: 1–7 / 8–30 / 31–60 / more than 60 days past due. These are review groups; they do not introduce new fees or payment terms. FIRST REMINDER Subject: Payment reminder for invoice [invoice number] Hi [customer name], I am following up on invoice [invoice number] for [service], due on [written-out date]. Our records show a remaining balance of [amount and currency]. You can use the payment instructions on the invoice. Could you confirm when you expect to make the payment? If you have already paid, please share the payment date and reference so we can check our records. If there is a question about the invoice, please let me know. Thank you, [name and business] SECOND REMINDER Subject: Follow-up on invoice [invoice number] Hi [customer name], I am checking back on my message of [written-out date] about invoice [invoice number]. The remaining balance in our records is [amount and currency]. Could you confirm a payment date or let us know what needs to be resolved? If payment has already been sent, please share its date and reference and we will verify it before updating the record. Thank you for your help, [name and business] PAYMENT CONFIRMATION — USE ONLY AFTER VERIFICATION Hi [customer name], Thank you. We verified your payment of [amount and currency] for invoice [invoice number] on [written-out date]. The remaining balance is [amount and currency]. Please let us know if you need the current invoice or receipt. Best, [name and business] Use the actual remaining balance; do not call the invoice fully paid while a balance remains.