Use this procedure when a customer overpays an invoice or statement
To do this task
Go to the Customers menu and click Receive Payments.
Enter the payment in the Receive Payments window.
Click the Received From drop-down
list and choose the Customer name.
Enter the amount of the payment.
Click the Pmt. Method drop-down arrow and choose a payment method.
The overpayment box appears where you can choose whether to leave the overpayment as a credit or issue a refund for this amount.
Click Refund the amount to the customer.
Save the transaction.
Fill in the customer's name and the check amount in the Issue a Refund window.
(Optional) Enter a memo to remind yourself what the check is for.