What are interchange fees? How they work and how to lower them
May 19, 2026
Interchange fees are the per-transaction cost your bank pays to the card-issuing bank every time a customer pays by card. They're typically the largest component of a merchant's card processing costs, which means they directly affect margins, cash flow, and the real cost of every sale. For a small business processing hundreds of card payments each month, even small differences in interchange fees can have a noticeable impact on your payment costs over time.
For many businesses, interchange stays hidden inside a single bundled processing rate. That makes it difficult to understand what you're actually paying to the card networks versus what your payment provider is charging on top. As payment volume grows, that lack of visibility can become expensive.
That’s why pricing transparency matters. Finix differs from flat-rate providers by showing merchants the underlying interchange cost alongside Finix’s own markup, giving businesses a clearer view of where their payment costs come from and how they change over time. Finix operates as a certified direct processor with dedicated merchant accounts and direct relationships across the major card networks.
What are interchange fees?
Interchange fees are transfer fees paid between banks during a card transaction. When a customer pays with a Visa or Mastercard, the merchant’s acquiring bank pays an interchange fee to the customer’s issuing bank as part of the settlement process.
These fees exist to help cover the costs and risks associated with issuing payment cards. Issuing banks take on fraud risk, fund rewards programs, manage cardholder accounts, and in some cases extend credit to customers. That's why different cards carry different interchange rates. A basic debit card usually costs less to process than a premium rewards or corporate credit card, and online transactions generally cost more than in-person payments because fraud risk is higher.
Interchange fees vs processing fees: what’s the difference?
The terms interchange fees and processing fees are often used interchangeably, but they’re not the same thing.
Interchange is the base fee set by the card networks and paid to the issuing bank. Processing fees are the additional charges added by your payment processor or acquiring provider on top of interchange fee.
Merchants generally can't negotiate interchange fees directly, but they can choose a processor with a more transparent pricing structure and lower markup. Understanding the different components of payment processing fees can help you see how processor markups, network fees, and gateway charges contribute to your total cost of accepting cards.
Who pays interchange fees and who receives them?
The merchant pays interchange fees indirectly through their overall card processing costs. When a transaction settles, the acquiring bank settles funds to the merchant after interchange and other fees are applied.
The interchange fee itself goes to the issuing bank, which is the bank that issued the customer’s card. Card networks like Visa and Mastercard receive separate scheme or network fees, which are different from interchange.
Party | Role | Receives interchange fee? |
|---|---|---|
Merchant | Accepts the card payment | No |
Acquiring bank | No (passes interchange to issuing bank) | No |
Issuing bank | Issues the customer’s card | Yes |
Card network | Routes transactions and sets network rules | No |
Understanding where the money goes matters because interchange is only one component of total payment processing costs. The processor's markup and pricing structure also impact what the merchant ultimately pays.
How do interchange fees work?
When a customer pays with a credit or debit card, several financial institutions work together to authorize and settle the transaction.
A typical payment flow looks like this:
A customer submits their card details at checkout.
The payment processor sends the transaction request to the card network.
The card network routes the request to the issuing bank.
The issuing bank approves or declines the transaction.
Funds are transferred to the acquiring bank and eventually settled to the business.
Interchange fees are typically the largest component of credit card processing fees.
Each time a customer pays with a card, the acquiring bank pays an interchange fee to the customer’s issuing bank. This fee compensates the bank for issuing the card, managing authorization, and handling fraud risk.
Interchange rates are set by card networks such as Visa and Mastercard.
Several factors influence the interchange rate applied to a transaction:
Card type, including debit, credit, and rewards cards
Transaction method, including in-person vs online payments
Merchant category code (MCC)
Card network
Level of transaction data provided
Because these variables change between transactions, the underlying cost of processing card payments is rarely fixed. However, interchange and network fees themselves are not negotiable because they’re set by the card networks. The area where providers differ most is how these costs are packaged, marked up, and presented to the merchant.
How are interchange fees calculated?
Interchange fees are usually calculated as a percentage of the transaction amount plus a fixed fee.
For example:
$100 purchase × 2.10% + $0.10 = $2.20 interchange fee
The exact interchange rate depends on several factors, including the type of card used, whether the payment is online or in person, the merchant category code (MCC), and how the transaction is processed.
Card-not-present ecommerce transactions usually have higher interchange rates because they carry greater fraud risk than card-present payments.
Interchange fee examples by card type
Card type | Example interchange range | Typical characteristics |
|---|---|---|
Debit card | ~0.05% + $0.21 (regulated) to ~0.80%–1.00% + $0.15 (unregulated) | Lowest-cost category |
Standard credit card | ~1.50% + $0.10 to ~2.20% + $0.10 | Standard consumer credit |
Rewards card | ~1.80% + $0.10 to ~2.70% + $0.10 | Funds rewards programs |
Corporate/business card | ~2.00% + $0.10 to ~3.20% + $0.20 | Higher B2B interchange |
Card-not-present ecommerce | Typically ~0.10%–0.50% higher than card-present equivalents | Increased fraud risk |
Interchange rates vary by card network, transaction type, industry, and other factors. These ranges are illustrative examples, not exact rates.
Factors that affect your interchange rate
Several factors can influence the interchange category a transaction qualifies for:
Card type, including debit, credit, rewards, or commercial cards
Merchant category code (MCC)
Card-present vs card-not-present transactions
Whether AVS and CVV verification data is included
Settlement timing
Transaction amount
Cross-border vs domestic payments
MCC classification is especially important because businesses assigned to higher-risk categories may pay unnecessarily high interchange rates if they’re incorrectly categorized.
What pricing model gives you the most visibility into interchange fees?
The pricing model your processor uses has a major impact on how visible your interchange costs actually are.
Some providers bundle interchange into a single flat fee, while others separate interchange from the processor markup. For businesses processing around $5,000 per month or more, visibility into those underlying costs becomes increasingly important. Choosing the right payment processing solution for your small business starts with understanding how different pricing models affect your costs.
Flat-rate pricing
Flat-rate pricing charges the same processing rate for every transaction, regardless of the underlying interchange cost. This model is simple and predictable, but because interchange is bundled into a single rate, it offers less visibility into your actual payment costs.
Interchange-plus pricing
Interchange-plus pricing separates the card network's interchange fee from the processor's markup. This gives businesses a clearer view of what they're paying in interchange versus processor fees, making it one of the most transparent pricing models.
Finix uses transparent interchange-plus pricing for direct merchants, showing interchange costs and processor fees separately on transaction statements.
Tiered pricing
Tiered pricing groups transactions into categories such as qualified, mid-qualified, and non-qualified. The challenge is that processors decide which transactions fall into each tier, making it difficult for merchants to understand why some payments cost significantly more than others.
Tiered pricing is generally considered the least transparent pricing structure.
Subscription (membership) pricing
Subscription pricing combines a monthly platform fee with interchange pass-through pricing. Instead of paying a larger percentage markup on every transaction, merchants pay interchange directly plus a smaller fixed processing fee.
This model is often better suited to businesses processing higher payment volumes, where flat-rate pricing can become expensive over time. Finix uses a subscription-style model for direct merchants, with pricing starting at $250/month. Businesses comparing pricing structures can review Finix pricing to better understand how interchange pass-through pricing works in practice.
If you're comparing pricing models, understanding the differences between flat-rate and interchange-plus pricing can help you make a more informed decision. See how the two models compare, including their costs, transparency, and ideal use cases, in interchange-plus vs. flat-rate pricing.
How can you reduce interchange fees?
While interchange rates themselves are set by the card networks and can’t be negotiated directly, businesses can reduce their effective interchange costs by improving how transactions are processed and choosing a more transparent pricing model.
Switch to interchange-plus pricing Flat-rate pricing hides the underlying interchange cost inside a blended fee. Interchange-plus pricing shows the actual card network cost separately from the processor markup, making it easier to identify where you're overpaying and optimize costs over time.
Pass enhanced transaction data for B2B payments Businesses processing commercial or corporate card transactions may qualify for lower interchange rates by submitting additional transaction data such as tax amounts, invoice numbers, and line-item details. Learn more about Level 2 and Level 3 processing and how enhanced data can reduce payment costs.
Use AVS and CVV verification For online transactions, using Address Verification Service (AVS) and CVV verification can help transactions qualify for lower card-not-present interchange categories while also reducing fraud risk.
Settle transactions daily Delayed settlement can push transactions into more expensive interchange categories. Capturing and settling payments promptly helps merchants avoid unnecessary downgrades.
Confirm your merchant category code (MCC) is accurate Card networks assign interchange rates partly based on MCC classification. If a business is incorrectly categorized as higher risk, it may be paying unnecessarily high interchange rates on every transaction.
Why your payment processor choice affects how much you pay in interchange
Payment processors don’t set interchange rates, but they do affect how interchange appears on your statements and how much additional markup you pay on top.
That means two businesses with identical transaction volumes could still pay very different effective processing costs depending on the provider and pricing structure they use.
The problem with flat-rate pricing for growing businesses
Flat-rate pricing is easy to understand early on, but it can become expensive as payment volume grows.
Businesses processing $50K or more per month are often paying significantly more than they would under a transparent interchange-plus structure, especially if many customer transactions come from lower-cost debit cards.
Pricing visibility also becomes more important as finance teams start analyzing margins and payment operations more closely. Without itemized interchange reporting, it’s difficult to identify optimization opportunities or understand the true cost of card acceptance.
Businesses evaluating transparency, support models, and long-term payment costs can also review the full Finix vs Stripe comparison.
Finix vs Stripe: pricing transparency for SMB merchants
Pricing category | Finix | Stripe |
|---|---|---|
Pricing model | Subscription pricing or custom plans | Flat-rate, volume-based custom pricing |
Pricing transparency | Interchange and fees priced separately | Bundled into flat rate |
Fee structure | Interchange + 0% markup on interchange + fixed fees | Flat blended pricing (e.g. 2.9% + $0.30) |
Support model | Dedicated support | Standard support, paid tiers for enhanced support |
Best fit | SMB and mid-market merchants | Developer-first businesses |
Account structure | Direct processing model | Aggregator (PSP) model |
How does Finix handle interchange fees?
Finix is a certified direct processor with direct connections to Visa, Mastercard, Amex, and Discover. Unlike payment facilitators that aggregate merchants under a shared master account structure, Finix provides merchants with greater visibility into payment operations and fee structures.
Finix is also one of only three providers globally, alongside Stripe and Adyen, offering unified omnichannel payments across online and in-person transactions.
Transparent interchange-plus pricing
Every Finix transaction statement shows:
The interchange cost charged by the card network
Fixed Finix fees applied separately
Nothing is blended into a single opaque rate, which makes it easier for businesses to understand payment costs and forecast margins more accurately.
Businesses comparing pricing structures can review Finix pricing for more detail on direct merchant pricing and platform costs.
Dedicated support to optimize your rates
Finix combines transparent interchange-plus pricing with dedicated merchant support, including account management and direct support channels for businesses that need more hands-on guidance as they scale.
Unlike flat-rate providers that rely heavily on self-serve support, Finix works more closely with merchants to help them understand their payment costs, optimize pricing, and resolve issues as they arise.
Customer reviews consistently highlight the value of greater payment visibility and faster time to launch, especially for businesses building payments into their products.
No long-term contracts and access to your payment data
Finix does not require long-term contracts, and merchants maintain access to their payment data.
Finix is primarily focused on merchants in the United States, and its pricing structure is generally better suited to businesses processing higher monthly volumes, given its subscription-based pricing model.
Pricing transparency is only one part of the decision. Businesses should also evaluate support quality, infrastructure reliability, payout flexibility, and account stability when comparing providers. This guide on how to choose a payment processor covers the key factors merchants should consider before making a switch.
Take control of your payment costs
Flat-rate pricing makes it hard to see where your money goes. Finix gives you clear, itemized pricing so you can understand fees, forecast margins, and reduce costs over time.
If you're paying more than you should in processing fees or outgrowing your current provider, it may be time to reassess. Finix gives you the visibility and control to understand and optimize your payment costs. Learn more about Finix pricing and see whether interchange-plus pricing is right for your business.