Don’t let a lack of transparency hold you back. Start by shining a light on your credit card processing fees, and you may find that your greatest growth opportunity has been hiding in plain sight.

Banks, card processors and processing networks like Visa and Mastercard each charge a fee to process credit card transactions. The sum of those fees is called the “swipe fee,” which usually ...

“I can’t imagine having to pay the credit-card fees out of my own pocket, basically,” Stephens said. The credit card processing fee issue has the attention of Capitol Hill.