Interchange fees play a pivotal yet often misunderstood role in credit card processing. These fees, though seemingly obscure, have a significant impact on businesses, financial institutions, and consumers alike. Understanding interchange fees is crucial for navigating the complexities of modern payment systems. Let’s delve into interchange fees, how they work, and how they are calculated.


Every time a customer uses a credit or debit card to make a purchase, there is an interchange fee. In essence, these are bank-to-bank transaction costs your business must pay to handle these debit and credit card transactions. The fees assist the banks in paying for various costs, including rewards programs, fraud protection, and maintaining the payment system. They can be thought of as operating charges for your business to be able to process card transactions.

These fees are included in the price of goods and services and add to the overall business expenses in addition to other operating costs. Interchange costs, however, represent a small portion of each transaction, and can add up to impact a company’s profitability and pricing policies. Businesses looking to maximize their economic success must comprehend and effectively handle interchange fees.


The mechanics of interchange fees can be complex, but the concept is straightforward. When a customer makes a card transaction, their bank pays the merchant’s bank an interchange fee. This fee compensates the issuing bank for the risk and costs associated with providing the card and processing the transaction. There is no universal interchange charge; instead, they are determined by several variables. Factors influencing interchange fees include the type of card used, transaction volume, merchant category, and regional regulations.


Interchange fees are determined by a predefined formula established by credit card networks, such as MasterCard and Visa. Interchange fees generally consist of two primary components:

Percentage of Transaction Value

Interchange fee is a percentage of the total transaction value. Various factors, including the kind of card used (credit or debit), the merchant category (e.g., retail, restaurant, internet), and the transaction type (e.g., in-person, online, international), might affect the percentage.

Flat Fee per Transaction

There can be a flat fee applied for every transaction in addition to the percentage fee. This charge is intended to cover the fixed expenses related to running the transaction and is fixed regardless of the amount of the transaction.

Keep in mind that interchange fees are determined by payment card networks rather than by direct negotiations between banks and specific merchants. However, several factors, including the industry category, the card acceptance type (contactless, chip-and-PIN, etc.), and their processing agreements with acquiring banks, may have an indirect impact on the interchange costs a merchant pays.


Understanding interchange fees is crucial for businesses relying on card transactions to maximize economic success. Though a small portion of each transaction, these fees can significantly impact a company’s profitability and pricing policies. Interchange is calculated based on a predefined formula established by credit card networks, incorporating factors such as transaction value, card type, merchant category, and transaction type. While merchants cannot directly negotiate these fees, they can optimize their payment processing strategies to mitigate their impact on overall expenses.

Why choose us.

20+ years of experience

MG Merchant Services has had a trusted reputation in the payment processing industry for over 20 years.

Exceptional Customer Service

Our team of experienced representatives is available to answer any questions or concerns.

Competitive Processing Rates

We pride ourselves on offering a transparent pricing model with no hidden fees.

Multiple Payment Options

MG Merchant Services offers a variety of payment processing options for every business need.

Fast and Easy Setup

We offer a fast and easy setup process, allowing clients to start accepting payments quickly.