It depends on where. In EU there is IFR that covers almost any debit/credit card transaction capping the interchange rate to 0.2 or 0.3%: https://en.wikipedia

It depends on where. In EU there is IFR that covers almost any debit/credit card transaction capping the interchange rate to 0.2 or 0.3%: https://en.wikipedia.org/wiki/Interchange_fee https://en.wikipedia.org/wiki/Interchange_fee (doesn't apply to corporate cards and to American Express)