Summarize unpaid invoices by age, identify collection risk, and download a detailed aging template for Excel or Google Sheets.
A useful report includes customer, invoice number, invoice and due dates, original amount, open balance, days overdue, aging bucket and collection notes.
The free interactive tool is available above when JavaScript loads. No signup is required.
Calculate age from each invoice due date, not from the last reminder. Group open balances into current, 1–30, 31–60, 61–90 and more than 90 days overdue, and keep disputed invoices visible with a note.
It groups unpaid invoices by how long they have been outstanding or overdue.
Weekly review is useful for small businesses because it catches approval delays and disputes before invoices become seriously overdue.
Include customer, invoice number, issue and due dates, original amount, open balance, days overdue, aging bucket and collection notes.
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General information only; reviewed August 2026.