The Payment Fees extension charges customers for using specific payment methods. It adds an extra fee to the cart (order) totals when customers select certain payment methods to place an order. This module allows for creating an unlimited number of fees. The fees can have both "fixed" and "percent" amount types. So you have a possibility to apply combined fees. For example, you can configure 2,9% + $0.30 surcharge for PayPal.
You can also configure payment fee conditions. The extra fee will...