A record of customers' accounts receivable and how long they have remained unpaid beyond the regular terms of sale.

A distribution of outstanding accounts arranged according to the time periods they have been outstanding. Most common classification system is: Current, (Overdue) 1-30 days, 31-60 days, 61-90 days, and over 91 days.

A way to estimate bad debts by analyzing individual accounts receivable according to the length of time they have been outstanding. For example, outstanding accounts may be split into those 30 days or less outstanding, 60 days or less outstanding, etc. The analysis includes arriving at the balance for all the accounts in a group.