This report lists the closed (fully paid) invoices sorted by customer. Includes the amount for the invoice and the elapsed number of days from the invoice date to final payment.

Report Tip: This report shows every fully paid sale within the selected date range and computes the days it took before it was paid in full. It then computes the average number of days for each customer.
This report helps you separate late payers from prompt payers. To cure chronically late payers use either a "carrot" or a "stick". The carrot approach offers them a prompt-payment discount. The stick approach slaps them with late fees. The choice is yours, but remember, good cash flow is critical to maintaining a healthy business.

To find the Customer Payments [Closed Invoices] report
To create a custom report
To create a report batch
Making sales
Reviewing your sales activity