Credit card processing fees are typically 1.5-3.5% per transaction, with additional fees from terminal providers. Businesses set their prices, but the cost of accepting payments varies by method. Some absorb the fees, some raise prices, some pass along fees where applicable, and some avoid credit cards entirely. Go to a restaurant in an Asian neighborhood and you’re sure to encounter this at some point. You shouldn’t feel cheated by this. Passing the fee to users is a fairest approach.