How to automatically add convenience fee to credit card payments

Consider having a 3rd party payment processor to integrate with QbO.

Hello billkellyandsons. The function you've described isn't available in QuickBooks. I can see the benefit of having this function and I encourage you to send feedback about this to our engineers. You can send by clicking on the Gear icon and looking for Feedback. New product ideas and improvements are based on the feedback we get from users like you. 

Let me know if you have other questions by leaving a comment below. I'll be one message away.