TL;DR: Interchange fees are the largest component of credit card processing costs — representing 70-80% of what you pay every time a customer swipes, taps, or enters their card online. US merchants collectively paid $198.25 billion in total card processing fees in 2025, and the US has the highest interchange rates in the world. Visa and Mastercard set over 300 distinct interchange categories, ranging from $0.22 flat for regulated debit to 2.95% + $0.10 for keyed corporate cards. The pricing model your processor uses determines whether you see these costs transparently or have them bundled into opaque tiers. This guide breaks down exactly how interchange works, what the current rates are, which factors drive your costs up or down, and the specific tactics that reduce what you pay.
An interchange fee is a transaction fee that your bank pays to the customer's bank every time a credit or debit card payment is processed. According to Stripe, interchange fees are transaction fees charged between banks for processing credit and debit card payments. The merchant ultimately bears this cost as part of their overall processing fees.
Every card transaction involves four parties. The issuing bank — the bank that gave the card to your customer — receives the interchange fee and assumes the risk of lending funds. The acquiring bank processes payments on behalf of the merchant, pays the interchange fee to the issuing bank, and forwards payment to you. The card network (Visa, Mastercard, Discover, or American Express) sets the interchange rates, operates the transaction infrastructure, and collects its own separate assessment fee. And you, the merchant, pay the total blended cost.
The total fee you pay on each transaction is made up of three separate layers, and understanding the difference is critical:
| Fee Component | Who Receives It | Typical Range | Can You Negotiate It |
|---|---|---|---|
| Interchange fee | Issuing bank (customer's bank) | 0.05% - 2.95% + flat fee | No |
| Assessment fee | Card network (Visa, Mastercard, etc.) | 0.13% - 0.15% | No |
| Processor markup | Your payment processor | 0.10% - 1.00% + flat fee | Yes |
Interchange plus assessment fees represent the wholesale cost of card acceptance — BAMS estimates that interchange alone accounts for 70-80% of total processing costs. The processor markup is the only component you can negotiate. As Payscout puts it: "Since card brands set interchange rates, no processor can offer you 'special' lower rates. If they claim they can, that's a big red flag."
Interchange rates are set by Visa, Mastercard, Discover, and American Express — not by individual banks or processors. Visa and Mastercard publish their full interchange schedules publicly and update them twice a year, in April and October. Discover does not publish rates publicly — merchants must request them. The rates are non-negotiable for individual merchants.
The scale of interchange in the US economy is staggering and growing. According to The Green Sheet, US financial institutions collected $66 billion in interchange fees in 2025, up from $64 billion in 2024. The Nilson Report found that total "swipe fees" — interchange plus network fees plus processing fees — reached $198.25 billion in 2025. Using a broader methodology, CMSPI and the Merchant Payments Coalition calculated $236.4 billion in total swipe fees for 2024, up 6.3% from the prior year — double the rate of inflation.
These numbers have been accelerating. Total swipe fees have grown 219% since 2009, when the Merchant Payments Coalition first began tracking them at $62.1 billion. For every $100 in card payments accepted in 2024, US merchants paid $1.57 in fees to card issuers and processors, per the Nilson Report. And according to IntelliPay, US merchants pay the highest card acceptance fees in the world.
| Country | Typical Credit Card Interchange |
|---|---|
| United States | 1.73% - 2.35% |
| Canada | ~1.40% |
| Australia | ~0.50% (regulated) |
| China | ~0.35% - 0.45% |
| European Union | 0.30% (capped by regulation) |
| United Kingdom | 0.30% |
About 74% of total interchange revenue in the US comes from credit cards, with 26% from debit cards. CMSPI estimates that US merchants paid nearly $11 billion in interchange on sales tax alone in 2024, since interchange is calculated on the full transaction amount including tax.
There are over 300 distinct interchange rate categories across Visa and Mastercard alone. The tables below cover the most common categories a small business will encounter, based on AllayPay's 2026 rate tables and ClearlyPayments.
Visa — Card-Present (Swiped, Dipped, or Tapped)
| Card Type | Rate |
|---|---|
| Standard consumer (CPS Retail) | 1.51% + $0.10 |
| Rewards Traditional | 1.65% + $0.10 |
| Rewards Signature Preferred | 2.10% + $0.10 |
| Rewards Signature | 2.30% + $0.10 |
| Debit Regulated (large bank) | 0.05% + $0.22 |
| Debit Non-Regulated | 0.80% + $0.15 |
Visa — Card-Not-Present (Keyed, E-Commerce)
| Card Type | Rate |
|---|---|
| Keyed CPS Retail | 1.80% + $0.10 |
| Keyed Rewards Signature Preferred | 2.30% + $0.10 |
| Keyed Rewards Signature | 2.70% + $0.10 |
| Keyed Corporate | 2.95% + $0.10 |
| Keyed Business | 2.95% + $0.20 |
Mastercard — Most Common Rates
| Card Type | Card-Present | Card-Not-Present |
|---|---|---|
| Consumer (Core/Merit III) | 1.58% - 1.65% + $0.10 | 1.95% + $0.10 |
| World | 1.77% - 1.90% + $0.10 | 2.20% + $0.10 |
| World Elite | 2.30% + $0.10 | 2.95% + $0.10 |
| Debit Regulated | 0.05% + $0.22 | 0.05% + $0.22 |
| Debit Non-Regulated | 1.05% + $0.15 | 1.60% + $0.15 |
American Express (OptBlue Program)
Amex historically operated as a closed-loop network — it was both issuer and network. Under the OptBlue program since 2014, smaller merchants can accept Amex through their existing processor. Larger merchants negotiate directly with Amex.
| Category | Rate |
|---|---|
| Retail (under $75) | 1.60% + $0.10 |
| Retail ($75 - $1,000) | 1.95% + $0.10 |
| Restaurant (under $25) | 1.85% + $0.10 |
| Restaurant ($25 - $150) | 2.45% + $0.10 |
| Travel and Entertainment (over $1,000) | 3.00% + $0.10 |
The full range across all four networks spans from 0.05% + $0.22 for regulated debit to 3.00% + $0.10 for premium Amex travel cards — a difference that directly impacts your bottom line depending on your customer mix.
A single merchant can qualify for dozens of different interchange categories across transactions in a single day. Six factors determine which rate applies to each transaction.
Card type is the biggest driver. Airwallex reports that the average interchange for Visa credit cards in the US is 1.91%, while a typical debit card rate is around 0.5%. The gap gets extreme at the edges: regulated debit at $0.22 flat versus keyed corporate cards at 2.95% + $0.10. Rewards cards carry higher interchange specifically because the interchange funds the cashback and travel points that make those cards attractive to consumers.
Transaction method matters. Card-present transactions (chip, tap, swipe) get lower rates because the physical card reduces fraud risk. Card-not-present transactions (keyed, e-commerce, phone orders) add approximately 0.30% to 0.50% in interchange premium. According to ClearlyPayments, online payments average about 1.90% in interchange due to increased fraud risk with card-not-present transactions.
Your Merchant Category Code sets industry-specific rates. The MCC is a four-digit code assigned based on your business type. Charge1 notes that businesses classified under low-risk categories benefit from lower interchange, while higher-risk categories face higher fees. Supermarkets get special Visa rates as low as 1.50% + $0.07. Utilities pay a flat $0.75 with no percentage fee. Restaurants have percentage-only rates with no per-transaction flat fee.
Data quality directly affects your rate. Passing more transaction data qualifies you for lower interchange categories. This is especially relevant for B2B merchants — submitting Level 2 data (tax amount, PO number) or Level 3 data (line-item detail) can reduce interchange by 0.50% to over 1.00% compared to standard rates.
Industry risk level adds processor surcharges. While base interchange rates from Visa and Mastercard apply regardless of risk classification, ClearlyPayments estimates the average merchant pays approximately 2.6% in total processing fees, while a high-risk merchant may pay 4% to 9% — with a likely average around 5%.
How your processor packages and presents interchange to you matters as much as the interchange itself. There are four pricing models, and understanding them is essential to controlling your processing costs.
Interchange-plus pricing is the most transparent model. Your processor charges the exact interchange fee set by the card network plus a fixed markup — for example, "interchange + 0.30% + $0.10 per transaction." You see the actual interchange cost on every transaction. Lowest Rate Payments calls it the most transparent pricing model available. Typical markup ranges from 0.10% to 0.50% plus $0.05 to $0.25 per transaction on top of interchange. Best for established businesses with steady volume.
Flat-rate pricing charges one fixed percentage for all transactions regardless of card type. Square charges 2.6% + $0.10 in-person and 2.9% + $0.30 online. Stripe charges 2.7% + $0.05 in-person and 2.9% + $0.30 online. Simple and predictable, but the processor pockets the difference on every debit and basic credit card transaction. Best for very small or startup businesses that prioritize simplicity over savings.
Tiered pricing sorts transactions into "Qualified," "Mid-Qualified," and "Non-Qualified" buckets at preset rates. The processor decides which bucket each transaction falls into. CardFellow warns that processors using tiered pricing sometimes advertise a qualified rate below actual interchange as a bait-and-switch tactic — the real margins hide in the mid- and non-qualified tiers. Not recommended for any merchant.
Subscription or membership pricing charges a flat monthly fee (typically $49 to $199) plus a very small per-transaction fee ($0.08 to $0.20) with no percentage markup — you pay near-wholesale interchange. Merchant Maverick describes it as interchange plus a flat per-transaction fee with a monthly subscription. Best for high-volume merchants processing $50,000 or more per month.
| Model | Transparency | Best For | Average Effective Rate |
|---|---|---|---|
| Interchange-Plus | Very High | Mid to large volume merchants | 1.8% - 2.8% |
| Flat-Rate | Low | Micro and startup businesses | 2.6% - 3.3% |
| Tiered | Very Low | Not recommended | 2.2% - 4.0%+ |
| Subscription | High | High-volume, large-ticket | 1.6% - 2.4% |
The cost difference between models is real. Velocity Merchant Services calculated that on $360,000 in annual card volume, interchange-plus pricing costs $7,560 versus $10,980 for tiered pricing — a $3,420 annual savings. For a B2B supplier processing $2 million annually, Skyline Payments estimates the difference between interchange-plus and tiered can reach $10,000 per year.
Several regulatory developments could significantly reshape interchange costs for US merchants in the coming years.
The Durbin Amendment and its legal challenge. The Durbin Amendment (2011) capped debit card interchange for banks with over $10 billion in assets at approximately $0.21 + 0.05% per transaction. On August 6, 2025, a US District Court in North Dakota vacated Regulation II — the Fed's implementation of the Durbin Amendment — finding the Federal Reserve exceeded its statutory authority. However, the court stayed the vacatur pending appeal, so the current debit cap remains in effect while the case moves to the Eighth Circuit.
The Credit Card Competition Act. The CCCA was reintroduced in both chambers of Congress on January 13, 2026 with bipartisan sponsorship. It would require large banks to enable at least two unaffiliated card networks on each credit card, allowing merchants to choose which network routes the transaction — creating price competition on credit interchange for the first time. Payments Dive reports the CCCA failed to attach to a housing bill in March 2026 and sponsors are seeking attachment to larger legislative packages.
The $38 billion Visa/Mastercard settlement. After a federal judge rejected the original $30 billion settlement in June 2024, Visa and Mastercard proposed a revised $38 billion settlement in November 2025. The terms include a 0.1 percentage point reduction in swipe fees for five years, standard consumer credit card rates capped at 1.25% for eight years (down from the current 1.5% to 1.8%), and the ability for merchants to surcharge up to 3%. According to Digital Transactions, the settlement still awaits judicial approval, and merchant groups continue to oppose it as insufficient.
Visa's Commercial Enhanced Data Program. Starting April 2025, Visa launched CEDP, replacing traditional Level 2/3 interchange incentives with new data quality standards. By April 2026, Visa will retire Level 2 rates entirely — only Level 3 or CEDP-quality data will qualify for reduced B2B interchange. This matters for any merchant accepting corporate or purchasing cards.
You cannot negotiate the interchange rate itself, but you can significantly influence which interchange category your transactions qualify for. Here are the highest-impact tactics.
Submit Level 2 and Level 3 data on B2B transactions. This is the single highest-impact optimization for businesses selling to other businesses or government agencies. Level 2 data adds the tax amount, customer code, and PO number. Level 3 data adds line-item detail — item descriptions, quantities, unit prices, and product codes. Wind River Payments reports savings of 0.50% to over 1.00% per transaction. One Optimized Payments client saved $5 to $6 million per year by implementing Level 2/Level 3 processing.
Use chip and tap instead of manual key-entry. Every keyed transaction incurs a card-not-present premium of approximately 0.30% to 0.50%. Using an EMV chip terminal or NFC tap-to-pay qualifies as card-present, reduces fraud risk, and shifts counterfeit fraud liability to the issuer.
Use Address Verification on all card-not-present transactions. For e-commerce and manually keyed transactions, Optimized Payments notes that submitting both the street address and ZIP code via AVS improves your chances of qualifying for lower interchange categories on Visa and Discover.
Settle transactions within 24 hours. Delayed settlement is one of the most common causes of interchange downgrades. Accepta Payments lists failing to settle within 48 hours as a primary downgrade trigger. Set your POS to automatically batch and settle every night.
Verify your Merchant Category Code. An incorrect MCC means you could be paying higher rates than your industry qualifies for. Payway recommends reviewing your current MCC with your processor and verifying it accurately reflects your business.
Encourage debit card usage. Regulated debit at roughly $0.22 per transaction is dramatically cheaper than credit at 1.5% to 2.5%. On a $50 transaction, credit might cost $0.85 to $1.35 in interchange versus $0.22 for regulated debit. Consider posting signage encouraging debit or offering cash and debit discounts where allowed.
| Tactic | Potential Savings | Applies To |
|---|---|---|
| Level 3 data on B2B | 0.50% - 1.00%+ per transaction | B2B and government merchants |
| Chip/tap instead of keyed | 0.30% - 0.50% | Any in-person merchant |
| AVS on card-not-present | 0.10% - 0.30% | E-commerce and MOTO |
| Daily batch settlement | Avoids downgrade costs | All merchants |
| Correct MCC | 0.10% - 0.50%+ | All merchants |
| Encourage debit | Up to 1.50%+ per transaction | Retail and low-ticket merchants |
An interchange downgrade occurs when a transaction fails to meet the requirements for its intended interchange category and gets reclassified into a more expensive one. SwipeSum explains that downgrades happen when a transaction fails to meet specific criteria set by card networks, leading to higher charges. For example, a transaction that should qualify for Visa CPS Retail at 1.51% + $0.10 might downgrade to Visa EIRF at 2.30% + $0.10 — costing you an additional 0.79% on that single transaction.
The most common triggers include late settlement (not batching within 24-48 hours), authorization and settlement amount mismatches, missing or failed AVS on card-not-present transactions, tips and taxes bundled into the transaction total instead of separate fields, CVV not collected on online orders, and missing Level 2/3 data on corporate cards.
The cost impact adds up. On $1 million in annual volume, if 20% of transactions downgrade by an average of 0.80%, that represents $1,600 in unnecessary costs — and for high-volume merchants processing $5 to $10 million, the waste can reach five figures annually.
Prevention is straightforward: automate daily batch settlement, match authorization and settlement amounts, always collect and submit AVS and CVV data on card-not-present transactions, separate tips and taxes in your POS system, keep terminal software updated, and request monthly downgrade reports from your processor to identify and fix patterns. Under tiered pricing, downgrades manifest as "non-qualified" surcharges — CardFellow notes this is one reason tiered pricing is so harmful, since merchants often have no visibility into which interchange categories their transactions actually qualify for.
You cannot negotiate the interchange rate itself — those are set by Visa, Mastercard, and the other card networks and apply equally to all processors. What you can negotiate is the processor's markup on top of interchange. That markup can range from 0.10% to 1.00% or more, and it decreases as your volume grows. According to ClearlyPayments, extremely large merchants processing billions annually may negotiate custom interchange rates directly with card networks, but for everyone else, the markup is the only lever.
Not always. Regulated debit from large banks is capped at approximately $0.22 per transaction and is dramatically cheaper than credit. But unregulated debit from small banks and credit unions can run 0.80% to 1.65% plus a flat fee — comparable to many standard credit cards. If a debit transaction is keyed rather than chip-inserted, it can reach 2.45% + $0.10, which is more expensive than some swiped credit card rates.
Rewards cards carry higher interchange rates because the interchange fee directly funds the cashback, travel points, and other perks cardholders receive. The issuing bank uses the higher interchange revenue to subsidize rewards programs. A standard Visa consumer card costs 1.51% + $0.10 at the point of sale, while a Visa Rewards Signature card costs 2.30% + $0.10 — a 0.79% premium that pays for the cardholder's rewards.
Visa and Mastercard update their interchange rate schedules twice per year, in April and October. However, fundamental shifts in rate structure (like the Durbin Amendment debit cap or the Visa CEDP changes) happen less frequently and typically come with advance notice. Your processor should notify you of meaningful changes, but most small businesses on interchange-plus pricing see modest fluctuations — the rate categories themselves change more often than the rates within them.
ClearlyPayments found that flat-rate pricing is slightly cheaper for very small volumes, but interchange-plus quickly becomes more cost-effective as your business grows. The break-even depends on your average ticket size, card mix, and monthly volume. For most businesses processing more than $5,000 to $10,000 per month, interchange-plus pricing will save money.