How Do Credit Card Companies Make Money?

By Jennifer Calonia. February 10, 2026 · 7 minute read

This content may include information about products, features, and/or services that SoFi does not provide and is intended to be educational in nature.

How Do Credit Card Companies Make Money?

Credit card companies make money by extending credit and facilitating transactions. They charge interest and fees for these services.

Using a credit card as a method of payment requires an intricate process happening behind-the-scenes when you buy your morning coffee or make an online purchase in seconds. Read one to learn more about how credit card companies make money.

Key Points

•   Credit card companies charge interest and fees for the services they provide to cardholders; they charge merchants fees to help cover transactions, authorizing, and processing.

•   Fees called merchant discounts or merchant discount rates (MDR) are charged to merchants and then distributed among acquiring banks, issuing banks, and payment networks.

•   Card issuers may collect multiple types of fees from cardholders, including balance transfer fees, annual fees, cash advance fees, returned payment fees, and late fees.

•   Interest charges accrue when cardholders fail to pay statement balances in full by end of the billing cycle, causing unpaid amounts to roll into subsequent months.

•   Using a credit responsibly, paying the statement balance in full, and choosing credit cards with limited fees can help cardholders save money.

Types of Credit Card Companies

You pay your monthly credit card bill to the bank or financial institution that approved your credit card line, but there are other credit card companies involved in the payments process.

Credit Card Issuers

The credit card issuer is the entity that provided you with your credit card. Major U.S. banks, credit unions, and other financial institutions issue credit cards directly to consumers. Some examples include Chase, Capital One, and PenFed Credit Union.

Credit Card Networks

Credit card networks partner with credit card issuers to act as a middleman that communicates between your bank and the merchant’s bank. Visa, MasterCard, American Express, and Discover are the four major U.S. card networks.

Some networks also act as a card issuer, offering their own credit card products to consumers. The credit card network also typically determines transaction interchange rates (more on this later), relays whether a charge was approved or declined, and identifies potentially fraudulent activity on a credit card.

Credit Card Processors

As its name states, a credit card processor is the company that actually processes the transaction between the issuing bank and the receiving bank. Some examples of credit card processors are Stripe, PayPal, Square, and Helcim.

Additionally, some credit card processors ensure that the merchant and transaction are secure and compliant under the Payment Card Industry Data Security Standard (PCI DSS).

How Credit Card Companies Work

All of the types of credit card companies above work in unison so you can successfully pay for goods and services using a credit card as a cashless payment option. There’s a lot of back-and-forth communication between the three types of credit card companies after you provide your credit card to a merchant.

The process starts with obtaining authorization, which the merchant requests from its payment processor after a customer swipes or taps their card to pay. The card processor then submits your credit card information and transaction details to the card network. Your card’s credit card network routes this information to your issuing bank. The issuing bank either approves or denies the transaction based on your available credit and the status of your account.

If approved, your bank sends the approval to its partner credit card network. The card network then communicates the approval to the merchant’s bank. The merchant’s bank relays the approval to the merchant, so you can finally walk away with your purchase or close the transaction. The entire process typically takes just a few seconds.

Although you walk away with your item or complete the online checkout process, the merchant doesn’t get your payment in their account instantly due to how credit cards work. Instead, the merchant goes through a separate process afterward to settle and receive funds for the authorized transaction. The transaction and payment details of transactions are communicated through the same channels that were used for authorization, involving the credit card network and issuing and merchant banks.

After the issuing bank draws the funds from your credit card account, it transfers the amount to the merchant’s bank, but withholds what’s called an interchange fee, which is a small fee merchants pay for every credit card transaction.

Recommended: What Is a Charge Card?

How Credit Card Companies Make Money From Cardholders

Credit card companies tack on various charges as part of their business. Below are three ways that credit card companies make money from their customers and from each other.

Interest

Credit card interest charges apply when you don’t pay your statement balance in full by the end of the billing cycle, and all or a portion of your balance rolls into the following month. This interest is expressed as an annual percentage rate (APR). Credit cards typically have a variable APR that changes depending on market conditions, your creditworthiness, transaction type, and borrowing habits.

Fees

Your credit card issuer also makes money from charging you other fees related to your credit card use and borrowing habits. For example, if you open a new balance transfer credit card, making a balance transfer — which involves paying a credit card with another credit card — typically incurs a fee.

Similarly, your card issuer might charge a fee if you made a purchase or authorized a transaction in another country; this is commonly called a “foreign transaction fee”. The credit card issuer might also charge you annual fees, cash advance fees, returned payment fees, and late fees.

Recommended: When Are Credit Card Payments Due?

How Credit Card Companies Make Money From Merchants

The acquiring bank, issuing bank, and credit card network all make money by withholding a small percentage of the authorized transaction amount from the merchant.

Called the merchant discount or merchant discount rate (MDR), this fee combines various costs, such as interchange fees. The rate per transaction is determined by the credit card network and typically ranges from 1% to 3% of the transaction amount. The merchant’s bank deducts the fee from the authorized purchase transaction amount, sending the remaining funds to the merchant. (In some cases, merchants may charge customers a surcharge to cover this fee.)

This fee is then divided between the acquiring bank, the card network, and the issuing bank. The issuing bank makes the most money from interchange fees because it assumes the most risk throughout the process if you default on the debt.

Limiting the Amount Credit Card Companies Make From Cardholders

To avoid credit card interest charges, make a credit card payment for your entire statement balance every month. Additionally, using a credit card responsibly, such as by not exceeding your card limit, can help by avoiding an APR increase.

It’s also worthwhile to examine the features of your existing and future credit cards. Consider cards that impose limited fees, such as those that don’t charge annual or foreign transaction fees, for example. Also don’t forget the credit card rule that you can always negotiate on fees or interest for your credit card.

The Takeaway

There are many ways in which credit card companies make money through your purchases, both from you and the merchant you patronize. However, you can reduce how much your credit card companies make off of your purchase by paying your credit card bills on time and in full every month.

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FAQ

Who profits from credit card convenience fees?

A convenience fee may be charged at checkout by businesses when customers use a credit card to make a payment rather than a check or via an electronic funds transfer from their bank account. Since merchants pay interchange fees for the ability to accept credit card payments, a convenience fee is a way for the merchant to recoup lost funds from credit card transactions. It’s also designed to discourage customers from using their credit card for payment.

Do credit card companies make money if I pay off my balance every month?

Yes, credit card companies still make money even if you pay off your balance each month. They achieve this through various fees. For example, a card issuer might still charge you an annual fee to use its card product or a foreign transaction fee if you use your card abroad. Similarly, a credit card network and credit card processor charges the merchant fees for the benefit of accepting credit card payments.

How do credit card companies make money if they offer cash back?

Despite offering you cash back on your card purchases, credit card issuers can make money through fees and interest charges charged to merchants and consumers. They will charge you interest if you’re unable to pay your statement balance in full each month, and you could face fees, such as a balance transfer fee, late fee, annual fee, or foreign transaction fee, depending on what may apply to your situation.


Photo credit: iStock/Talaj

SoFi Credit Cards are issued by SoFi Bank, N.A. pursuant to license by Mastercard® International Incorporated and can be used everywhere Mastercard is accepted. Mastercard is a registered trademark, and the circles design is a trademark of Mastercard International Incorporated.

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