To configure Accounts Receivable, click the Setup toolbar button 
. The Accounts Receivable Setup window opens.
Finance Charges
You must enter the finance charges. These settings determine how finance charges age over time.
Finance Charge
Enter the monthly percentage rate to be charged against open charges.
Begin Finance Charges
Enter the amount of time that must elapse before the finance charges are applied. Because February is the shortest month, a value less than 28 is suggested, i.e., 20 days.
Age Charges Based On
Enter the date of charge or Date of first statement. This affects the length of aging but not the finance charge.
Remember that the account begins to age after the first statement is sent.
Messages for Statements
Enter the message you want to appear on customer statements. A different message may be selected for accounts that are current, over 30 days old, over 60 days old, and over 90 days old. When the information has been entered, click the OK button to update the configuration.