Hello there, @BorealisAcct.
It's good to have you back here in the Community. I'd be happy to provide you with the steps on recording a receipt in QuickBooks Online.
Recording a refund receipt in QuickBooks Online doesn't affect the customer's balance (accounts receivable), this will only affect the bank balance.
To record a refund:
- Select Plus icon (+) on the Toolbar.
- Under Customers, choose Refund Receipt.
- Select the same product/service you are refunding and enter the exact amount of the refund.
- Fill out the necessary fields, then select Save and close.


For more details about this process, please refer to these articles:
This should help you record your refunded sales receipt in QuickBooks.
Please let me know if you have any other questions concerning QuickBooks by leaving a reply in this thread. I'm always here to help. Have a great day!