Invoice aging calculator
Group unpaid invoice balances by days overdue to see which money needs attention first.
How the invoice aging calculator works
Days overdue = as-of date − invoice due date
An invoice 30 days overdue belongs in the 1–30 day bucket. At 31 days, it moves to 31–60. An invoice due today is still in the current bucket.
Enter each invoice’s remaining unpaid balance, after any payments or credits. This tool groups balances by due date; it does not decide collection priority, calculate late fees, or change an invoice.
See how Granite invoices and collects paymentSee your own reporting and royalty cycle in Granite.
Bring a recent sales report and your royalty terms. We will walk through the calculation, the invoice and the payment with you.