Your Credit Card Processor in 2026: Who Are You Really Working With — and How Do They Make Money?
By Dean Sheaffer, CEO & Founder of TeamPaytech
Why This Matters More Than Ever
For most small and mid-sized businesses (SMBs), payment processing is still treated as a black box:
- Funds go in
- Fees come out
- Statements are confusing
- And costs keep rising
But in 2026, that lack of visibility into payments is becoming a real disadvantage.
Between potential regulatory changes (e.g Illinois Interchange Fee Prohibition Act-IFPA, the Credit Card Competition Act), increased pricing complexity from networks like Visa and Mastercard, and growing competition among providers, merchants who understand how the system works can gain a meaningful edge.
The first step is simple:
Know who you’re working with, how they get paid, and how you are charged.
The Payments Ecosystem (Simplified)
Every time you accept a card payment, multiple parties are involved:
- Issuing Bank (customer’s bank) — earns interchange
- Card Network — earns assessment fees
- Acquiring Bank (Processor) — enables acceptance and earns a margin
- ISO or Sales Agent — often your point of contact
Each layer adds cost — and each has its own incentives.
How Your Processor Actually Makes Money
1. The Merchant Discount Rate (MDR)
Most merchants see a single number — typically 2%–4% — applied to transactions.
But that number is made up of three components:
- Interchange (largest portion) → paid to issuing banks
- Network fees → paid to card brands
- Processor markup → where your provider makes money
👉 For many SMB merchants paying bundled pricing, 20%–40% of the total processing cost is markup — not interchange.
A merchant can try to negotiate lowered bundled pricing, but the only way to understand what you are paying is with unbundled pricing: interchange + or, better, interchange ++ pricing.
2. Additional Revenue Streams (Often Hidden)
Beyond transaction fees, processors and their partners generate revenue through:
- Monthly service or platform fees
- PCI compliance fees
- Chargeback and dispute fees
- Equipment leasing or terminal markups
- Settlement timing (“float”)
- Value-added services (analytics, gateways, financing)
In 2026, we’re also seeing:
- Bundled “software + payments” models with embedded margins
- Opaque flat-rate pricing that masks true costs
- Dynamic pricing structures tied to vertical SaaS platforms
The Role of ISOs vs. Sales Agents
Understanding who sold you your account is just as important as understanding your pricing.
What Is an ISO?
An Independent Sales Organization (ISO) is a registered entity that:
- Has a direct relationship with an acquiring bank
- Can set pricing and manage merchant accounts
- Earns ongoing revenue from processing activity
ISOs typically:
- Control their markup
- Provide support infrastructure
- Offer additional services (POS, analytics, consulting)
What Is a Sales Agent?
A sales agent operates under an ISO or processor:
- They do not control pricing directly
- They earn a commission or residual split
- They rely on another organization for support and operations
This creates an additional layer in the revenue chain — which can impact both cost and service quality. You can understand who you’re working with by asking questions such as “are you registered with a sponsoring bank” and “do you provide customer service”.
Why This Distinction Matters for SMBs
1. Pricing Transparency
- ISOs can often explain and adjust pricing
- Agents may not have full visibility or authority
2. Service and Support
- ISOs typically provide direct support
- Agents may need to escalate issues, slowing resolution
3. Long-Term Alignment
Both ISOs and agents are typically compensated on residual income — meaning:
The more you process, the more they earn.
This creates alignment — but also risk:
- You may not be proactively offered cost reductions
- Pricing may remain static even as your volume grows
What’s Changed in 2026
Several shifts are making this knowledge more actionable:
1. Regulation Is Starting to Impact Fee Structures
If initiative like IFPA become law:
- Certain portions of transactions (e.g., tax and tip) may be excluded from interchange. but only if your systems and processor are configured correctly
👉 If it becomes law, there is no guarantees all providers are implementing it correctly.
Keeping informed of regulation that could affect your cost of payment acceptance, and being able to ask your ISO or agent about them, will ensure you are not paying more than you should
Note: Payments Roundup keeps merchants informed about such topics.
2. Technology Is Driving More Pricing Complexity
Modern payment stacks now include:
- POS systems
- Payment gateways
- Embedded finance platforms
Each layer may introduce additional margin — often without clear disclosure.
3. SMBs Have More Leverage Than They Think
Competition among processors has increased significantly.
Merchants who understand:
- Their pricing model
- Their transaction mix
- Their provider structure
…are in a much stronger position to negotiate and optimize.
How to Evaluate Your Current Setup
You don’t need to become a payments expert — but you should be able to answer a few key questions:
Who am I actually contracted with?
- The processor?
- An ISO?
- A software platform?
What pricing model am I on?
- Blended / flat rate
- Tiered
- Interchange-plus (IC+)
Where is the markup?
- What portion of my fees is negotiable?
Is my provider aligned with my growth?
- Are rates improving as volume increases?
- Am I being offered optimization opportunities?
Common Red Flags
Be cautious if your provider:
- Cannot clearly explain your pricing
- Avoids sharing interchange detail
- Locks you into long-term contracts with termination fees
- Bundles services in ways that obscure true cost
- Has changed pricing without clear communication