Quickbooks needs to add a feature to have the ability to add a  "processing fee" at the time of checkout with a credit card.  I have customers that send checks and I want to steer them away from paying with credit card but right now the fact that I can't put 3% processing fee on the bill at the moment they decide to pay with a credit card instead of a check, they will pay with a credit card. It should be an automatic addition (if the company adds that feature) when they use the credit card so if they mail a check, there is no fee.