On the Credits tab, check the credit you want to apply and then Done. Under the Received from the drop-down, go to your customer. Fill out the Credit Memo form, entering the date, credit memo number (you can assign it or accept QuickBooks' automatic numbering), quantity, item, and item details as applicable. From the Customer:Job drop-down, select your customer. The challenge comes when you have to upload the credit memos manually in the system. In QuickBooks accounting software it is very easy and convenient to reconcile accounts receivables in QuickBooks accounting software. Your client has requested a return and you want to apply the credit to their existing accounts receivable. Here are the key differences: Credit memo. BY AUTUMN ELLIOTT — CLIENT ACCOUNTING SERVICES MANAGER, CERTIFIED QUICKBOOKS PRO ADVISOR. To clear an overpayment in Quickbooks, start by creating a credit memo for the refund.