This passing on the credit card fee is becoming a huge deal. The problem I am having is I send the invoice out with the intent the customer will pay with a check, where as there are no fees.  BUT, many time the customer changes the payment method and pays through QB with a credit card. WAM- i get stuck with the credit card fee that was never intended or advertised because payment was supposed to be paid by check.  

It would be very helpful if QB would be able to stop the payment from the customer, warn them all payments with credit card will incur a 3% credit card fee. Now the customer recognizes the fee and has the option to continue pay the invoice with the added fee, or simply utilize USPS and pay by check.  

There's got to be a way the fee can be inserted for payment ONLY by credit card. Does anyone have a answer to this?