About Interchange

About Interchange


Retailers that choose to accept electronic payments — such as credit and debit cards, or mobile payments — do so for the opportunity for higher sales, a larger customer base, reduced risk associated with handling cash, reduced bounced checks, and guaranteed payment. For this valuable service, retailers pay a small fee to their bank or card processor, known as the “Merchant Discount Fee” (MDF), which is a blended rate inclusive of amounts that go to all parties of the electronic payments network

Interchange revenue helps to cover customer service, system operations, protection of customer data, card production costs, and much more.

For an overview of interchange and how it works, please see this PDF resource here. EPC has also developed a more in-depth resource overview of interchange that explain how it works, as well as the benefits and value of the system to merchants and consumers. Please see here.

Interchange is the portion of that cost that the retailer’s bank pays to the cardholder’s bank or credit union. Interchange revenue is critical to running a card program, partially reimbursing banks and credit unions that issue the cards for the float on the funds, the risk of nonpayment or fraud, and other services that have made these products so valuable and popular among consumers and retailers alike.

For example, the MDF that merchants pay on a $50 credit purchase averages around $1 — and less for debit.


Interchange revenue helps to cover a wide variety of costs for card-issuing banks and credit unions, including customer service, system efficiency and convenience, the costs of online transactions, protection of customer data, and card production costs, among many others.


In the moment that the card is run for payment, the transaction is instantaneously authorized, cleared and settled — but to make that possible, there are operational costs for software, hardware, equipment, labor, network processing fees, and transaction monitoring. These costs as well as billing and collection, data processing, fraud prevention, card replacement, and customer inquiries and customer service are incurred by card issuers. They also bear the substantial majority of the risk for fraud and insufficient funds.


The safe, instantaneous and secure system we enjoy today took decades and billions of dollars in investment to build. The maintenance and system operations require constant — and expensive — regular upgrades to maintain the latest in technology and cyber-security.