Wise-Pay automatically does handle Payment Surcharges.

One of the core capabilities is for Wise-Pay to automatically handle Surcharges, as well as managing payment deposits directly in your accounting package. Now you can just let Wise-Pay automatically handle your Surcharges.

 A surcharge is added to the total cost at the time payment is made. A surcharge invoice is generated at the time of processing  in Xero or QBO.  Your customer is able to download a copy of the Surcharge Invoice from the Actions in Past Payments.