What is a Merchant Discount Rate?

mer - chant dis - count rate
A fee assessed for the processing of a Credit Card payment from a customer.
How Does a Merchant Discount Rate Work?

Discount rates are traditionally stated as a percentage of each purchase Transaction processed. Often these rates are based on the type of business the transactions are being processed for, the types of Credit Cards used by consumers (business and rewards cards often cost more), and the size of the average Transaction (also known as average ticket, or average sale amount). Usually the largest component of the discount rate are the fees charged by the payment system itself, which is often called Interchange .

For more information, read "The Payments System Simplified"
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