Understanding merchant fees can be challenging because merchants must pay multiple fees. These fees include but are not limited to interchange fees, network fees, processor fees, debit routing fees, and other billable events. Visa states that merchants do not pay their interchange fees directly to Visa; instead, they negotiate a merchant discount with their financial institution. Mastercard states that interchange fees are only one component of the merchant discount rate that merchants pay to their acquirers.
The appropriate question, then, is not what the cheapest rate is, but rather what the fee structure is and where the inefficiencies in the business lie. If a merchant wants to lower their processing and account fees, they must first separate these two costs.
What Merchant Fees Include
There are three main fee buckets for merchants. The first includes fees from the networks, like interchange. The second includes fees from the acquirer and processor of the merchant account, such as markup fees and merchant account fees. The third includes fees based on events related to transactions in that account, such as declined transactions, returns, chargebacks, and security-related fees. Each of these companies makes clear that interchange fees are only one part of the fees that merchants pay. Furthermore, companies like Braintree make clear that there are also fees associated with the events of transactions included in those accounts.
More specifically, merchant account fees often break down into fees related to the card networks, the merchant provider of that account, and the merchant’s operational aspects. Typically, merchants have more influence over the fees charged by their merchant provider and its operational aspects than they do over the fees charged by the card network.
Merchant Fees Compared
| Fee Type | What It Covers | Who Mostly Controls It | What Merchants Should Watch |
|---|---|---|---|
| Interchange | Fees paid between acquirers and issuers on card transactions | Network framework and issuer economics | Card mix, transaction type, qualification details |
| Merchant discount / acquirer pricing | What the merchant actually pays for acceptance services | Acquirer or provider pricing model | Markup, statement transparency, contract terms |
| Debit interchange and routing economics | Debit-card cost structure under Regulation II for covered issuers | Regulatory framework plus routing setup | Debit routing, issuer coverage, network enablement |
| Billable event fees | Declines, refunds, two-step auths, card verification, chargebacks | Provider pricing and payment workflow | Avoidable events, retry logic, refund habits |
| PCI and security-related overhead | Security posture and scope-related effort | Merchant setup and vendor choices | Checkout design, remote access, payment-data exposure |
This table is the real reason businesses get confused about merchant processing fees. Merchants often focus on interchange because it is visible, but total cost is usually shaped by a mix of network economics, provider pricing, and avoidable operational events. Visa, Mastercard, the Federal Reserve, PCI SSC, and Braintree all describe different parts of that stack.
Why Merchant Fees Vary by Business
Two merchants who process the same volume of sales will have different fees applied to them. Mastercard explains that merchant interchange qualification depends on the requirements for specific interchange categories. The rates for these categories can vary from business to business based on the products they sell, the type of business they operate, the payment methods they use, and their eligibility for interchange.
Additionally, the use of debit cards affects the fees merchants must pay. The Federal Reserve caps the interchange fees for covered debit card issuers at 21 cents and 5 basis points, plus an additional 1 cent for qualifying fraud prevention programs. Routing requirements are also preserved for these transactions. Thus, how a merchant routes their debit transactions will affect the fees they must pay to their payment provider.
What Do Merchant Fees Cost?
There is no single universal number for merchant fees, as many factors affect the fees merchants pay. Braintree makes it clear in their fee chart that there are costs associated with transaction pricing as well as other events that may occur for that merchant. Thus, two merchants with similar volume may pay significantly different fees.
Instead of asking what percentage of sales is typically applied as a merchant fee, the merchant should ask what is driving the rate your business is currently paying.
Common Merchant Fee Mistakes
The most common mistake merchants make is focusing only on the headline rate. Both Visa and Mastercard have made it clear that the interchange rate is only one part of the overall merchant discount rate. Many merchants focus on finding the lowest possible rate without considering other potential fees or the possibility of increased costs.
Another common mistake is failing to consider compliance and security when evaluating the cost of payment processing software. Payment security companies, such as the PCI SSC, make it clear that the security of systems that accept payments is the merchant’s responsibility. Any payment system that leads to increased payment data exposure, remote access, and overall security issues can actually increase the cost of payments for the merchant – even if the stated rate for the software remains the same.
How To Reduce Merchant Fees In 2026
Understand Which Fees Are Fixed Vs. Negotiable
Visa and Mastercard make it clear that the interchange rate is just one part of the total merchant discount rate. That leaves other fees that are more negotiable between the merchant and the provider.
Review Debit Routing And Card Mix
If you have a lot of debit transactions, you need to make sure you are routing them through networks that offer better caps on interchange fees for debit transactions as outlined in Regulation II from the Federal Reserve.
Improve How Transactions Qualify
Mastercard makes it clear that each interchange rate comes with a series of requirements that must be met for a transaction to qualify for that rate. Ensuring that your transactions can qualify for the better rates will reduce your fees.
Cut Avoidable Billable Event Fees
Braintree notes that there are billable event fees for every declined transaction, every refund, every two-step authorization, and every verification of the cardholder. Furthermore, there can be multiple billable event fees for the same transaction.
Reduce PCI And Security Overhead
The PCI Security Standards Council states that PCI DSS applies to all entities that have a role in storing, processing, or transmitting cardholder data, or who can impact its security. Many of their resources are dedicated to securing remote access to merchants and protecting their payment systems from attacks.
Match Your Pricing Model To Your Actual Business
While the pricing model for most merchant payment providers looks great on paper, it may not be the cheapest model for your type of business. Since neither Visa nor Mastercard list any pricing models directly, merchants are left to decide which pricing model works best for their business by comparing it to their transaction data.
FAQs
Q: What are merchant fees?
A: Merchant fees are the costs that a business must pay to accept card payments. These costs include fees such as interchange, which is only one component of the total merchant fees businesses pay to merchants.
Q: What is the difference between merchant fees and merchant processing fees?
A: There is no difference between the two. Merchant fees and merchant processing fees are often used interchangeably. However, merchant processing fees focus on transactions, while merchant fees can describe the costs of transactions as well as other costs for merchants.
Q: What are merchant account fees?
A: Merchant account fees are the costs that a merchant pays to the merchant account provider. These fees differ from interchange fees, which must be paid to merchants, and are set by the merchant and the acquiring bank for the merchant’s merchant account.
Q: Why does debit sometimes cost less than credit?
A: Debit payments are required to comply with Regulation II, which limits interchange fees for covered debit cards to 21 cents plus 5 basis points. If a merchant is eligible for the covered issuer, an additional cent is placed on the merchant for fraud prevention protocols.
Q: Can merchants negotiate merchant processing fees?
A: The merchant can negotiate with their merchant account provider the costs of the markup and the merchant account itself. However, there is no negotiation over the fees established between the acquiring bank and the merchant.
Q: How can businesses lower merchant fees without switching providers?
A: Businesses can lower the costs of merchant fees by reducing the number of billable events that happen in their business. The fewer billable events a business has, the lower the costs for that merchant.
Conclusion
The best way to understand merchant fees is to look at the various components businesses must pay and how each can impact the business and its costs.
If you would like assistance understanding your merchant processing fees and the steps you can take to reduce those costs, Payment Nerds can help.
Sources
- Visa. “Credit Card Processing Fees & Interchange Rates.” Accessed April 2026.
- Mastercard. “Interchange Fees and Rates Explained.” Accessed April 2026.
- Federal Reserve. “Regulation II: Debit Card Interchange Fees and Routing.” Accessed April 2026.
- PCI Security Standards Council. “Merchant Resources.” Accessed April 2026.
- Braintree. “Pricing and Fees.” Accessed April 2026.
