“It is getting more expensive to pay for things with a credit card. More small businesses—and even some larger ones—are charging shoppers a fee for credit-card purchases or offering them discounts when they pay with debit cards, cash or checks. The moves are meant to offset the various fees businesses pay on credit-card transactions, costs that have grown alongside generous cash-back and travel rewards. Data on cash discounting is hard to come by, and less than 5% of 8 million card-accepting small businesses in the U.S. charge fees for credit-card payments, according to estimates from payments consultancy the Strawhecker Group. But that share has risen steadily in recent years. Five years ago, an estimated 2% or less of businesses charged fees on credit-card purchases.”