Only the QuickBooks Administrator can do this.
Open the finance charge preferences.
To do this task
Go to the Edit menu and click Preferences.
In the Preferences window, click Finance Charge in the list on the left.
Click the Company Preferences tab.
Enter your annual interest rate, minimum finance charge, and grace
Enter the name of the account you use to track income from finance charges.
Usually, this is an income account.
(Optional) If you don't want QuickBooks to assess finance charges on
overdue finance charges, clear the checkbox for assessing overdue finance
Important: Laws vary about whether you can charge interest on overdue
interest payments. Confirm with the appropriate jurisdiction that you are in
compliance with that jurisdiction's lending laws.
Indicate the date (due date or invoice/billed date) that you want QuickBooks
to calculate finance charges from.
(Optional) To be able to print all your finance charge invoices in a single
operation, select the Mark finance charge invoices as To be printed checkbox.
If you send statements, leave this checkbox cleared. QuickBooks will include
the finance charges on the next statement to the customer.
Assess finance charges
How QuickBooks calculates finance
preferences for sales and customers
Set general preferences