The exchange fee is for all foreign currency, not just USD. Here is an extract on the information disclosure from MBNA, as an example...
Foreign Currency Conversion We will bill you for all transactions in Canadian dollars. Any transaction made in a foreign currency will be converted to Canadian dollars using the currency conversion rate established by MasterCard that is in effect on the date that we process the transaction. This conversion rate reflects the fee retained by MasterCard as a cost of performing the conversion service. In addition to the conversion rate, we will charge you a fee of 2.5% of the transaction amount after it has been converted.
If you do a lot of USD transactions, it is worth to get a USD credit card. |