Merit offers payors ability to pay in USD from a US based credit card or US based bank account for debit via PayPal. To use this service, a convenience fee of 5% of the amount of each payment is required to be added to the amount to cover the costs of administration and currency exchange for fees expended to enable this convenience. Please add the amount to each payment. At this time, only one-time spot payments may be performed, while each payment may be entered as due. You would pay in USD not CDN dollars (while if you need to convert from Canadian to USD, please us the Canadian bank buy USD offered price). To avoid a potential shortfall, Merit recommends that you obtain amount due in USD clarification prior to use.