Does quickbooks refund credit card processing fees on customer refunds? I see that square does.

Thanks for joining the Community, @ssw1234. I can share some insights based on processing fees in QuickBooks Online. 

Credit card processing fees cannot be returned or refunded when reversing a transaction for a customer. Also, a refund or return transaction will be charged a fee depending on your pricing plan and transaction type.

You can sign in to your Merchant Service Center to review the rates. With this, you will know what the amount is being charge by the system. In addition, the cost is typically determined based on a percentage of the transaction and a flat fee. 

Furthermore, I've got these helpful resources for further details:

• Common terms to process credit cards for payments.
• Am I charged a fee on refund or void transactions?

I'm also adding this link that provides steps about processing a refund payment transaction in QBO. This way, you can account the transactions accurately when refunding customers.

I'll be happy to help if you have other concerns about handling your transactions in QBO.​ Have a good day!