Abstract: Methods of processing electronic transfers of funds from a payer account held at a payer financial institution to a financial settlement network in a currency that may be the same as or different from the funds in the payer account, and transfers from the financial settlement network to a payee account in a currency that, again, may be the same as or different from the funds in the payee account. The transfers are initiated by payment instructions transmitted by the payer to a payment gateway that provides mappings between the payer account and at least one credit card account in a currency nominated from those currencies supported by the payer financial institution for settlement purposes. The payment gateway also provides mappings between a plurality of payment currencies and at least one acquiring account held by a payee in a currency supported by an acquiring financial institution.