What is a billing statement?
A billing statement (or simply statement) lists the charges that a customer has accumulated over a period of time.

Use statements when you:

Bill customers periodically, such as once a month.

Want to let your customers know how much is past due from previous billing periods (30 days past due, 60 days past due, and so on).

To create a statement, enter each charge individually in the customer's register. When it's time to send the statement, preview the statement information, decide whether to add finance charges, and then print the statement.

https://support.quickbooks.intuit.com/support/pages/inproduc...