Among other things, interchange may vary by the type of retailer, cost of the sale, payment product type, processing technology the retailer uses and region or country. For example, transactions at fuel retailers, quick service restaurants and car rental agencies each possess unique attributes that may require different interchange categories and processing strategies. Similarly, the type of payment product used (e.g., credit or debit) and how that product is used (e.g., face-to-face or over the Internet) affect the interchange rate and processing requirements.
There is a cost to accept Visa cards, just as there is a cost to accept cash, cheques and other forms of payment. For example, it takes time to count and deposit cash, and cash may disappear as a result of errors or theft. Cheques can be delinquent or cause losses to retailers because of a lack of funds in the cheque writer's account. The cost to accept electronic payments may be more apparent to retailers, however, because they are directly billed for the service.