If you’re a CFO or CEO, there’s a good chance you’ve said (or at least thought) something like: 

“We’re already optimized, we negotiated a really good rate with our processor.” 

And while that might feel like a win (and kudos on the negotiation), there’s one big problem: 

That negotiated rate is only part of the equation. 

In fact, the majority of your payment costs come from outside of what you negotiated. And without full visibility into what’s really driving those fees, your payments strategy could be leaving significant savings on the table. 

Let’s take a deeper look. 

When most merchants talk about payment costs, they’re thinking about the fees they see in their processor agreement: 

• A percentage markup on each transaction 
• A fixed per-transaction fee 
• Maybe even a volume-based discount 

These are important. But they’re not the whole story. 

In truth, the processor’s markup often makes up a small percentage of your total cost. The larger portion comes from interchange fees (set by card networks like Visa and Mastercard) and network fees (charged by the networks themselves). 

And here’s where the misconception really kicks in: Most of these fees are not negotiable. But that doesn’t mean they’re unchangeable. 

What Makes Up the Majority of Your Payment Costs 

Let’s zoom in on interchange and network fees—because that’s where the real opportunity lies. 

Interchange fees are paid to the card-issuing banks and are influenced by a wide variety of factors: 

• Card type (debit, credit, commercial, rewards, etc.) 
• Merchant Category Code (MCC) 
• How much data you send with the transaction 
• Whether it’s in-store or online 
• How the transaction is authorized 

Network fees are tacked on by card networks to cover the cost of processing and managing their infrastructure. These aren’t static either—they’re often subject to changes in network policy and are impacted by how transactions are routed. 

While these costs aren’t something you can negotiate down like a processor’s margin, they can absolutely be influenced through data-driven decisions and transaction behavior. 

Hidden Levers That Can Drive Down Payment Costs 

This is where things get interesting. If you have access to the right data—and know how to use it—you can influence how your transactions are processed and how much they cost. 

Here are some of the most overlooked levers for optimization: 

1. Card Mix
   The types of cards your customers use can significantly affect your interchange costs. A high percentage of premium or commercial cards can increase costs, while encouraging PIN debit usage (where eligible) can help lower them. 

2. Data Quality (Level 2/3 Data)
   For B2B and government transactions, providing more detailed information (Level 2 and Level 3 data) can qualify your transactions for lower interchange rates. If your system isn’t passing this data, you’re missing out on savings. 

3. Downgrades
   If a transaction is missing required data or not submitted correctly, it may be “downgraded” to a more expensive interchange category. These can quietly erode your margins if you’re not monitoring them. 

4. Merchant Category Code (MCC) Accuracy
   Your MCC affects your eligibility for certain rates and routing options. If your business is misclassified, you might be paying more than you should—or missing out on PINless debit opportunities. 

5. PINless Debit Routing
   For online and recurring transactions, routing eligible debit transactions through lower-cost networks can significantly reduce fees. But this requires the right logic and processor support to implement effectively. 

6. Recurring Billing Optimization
   If your billing model isn’t aligned with network rules (like proper use of stored credential indicators), you may face higher fees or failed transactions that create downstream costs. 

These levers aren’t always obvious—and most processors won’t proactively point them out. But together, they can add up to six- or seven-figure savings annually, especially for enterprise merchants. 

Why Visibility into Your Data Matters 

Here’s the challenge: You can’t optimize what you can’t see. 

Most merchants don’t have the tools or reporting capabilities to connect the dots between transaction behavior and cost drivers. And even when some data is available, it’s often siloed or incomplete. 

Without clear visibility into transaction-level data, you could be: 

• Paying for preventable downgrades
• Missing debit routing opportunities 
• Overlooking network fees that are avoidable 
• Operating with a misaligned MCC 
• Unable to track the true cost of each payment type 

A robust payment analytics platform helps surface these opportunities by showing you what’s working, what’s costing you, and where you can act. It turns thousands (or millions) of transactions into clear, actionable insights. 

What an Optimized Payments Strategy Actually Looks Like 

True optimization goes beyond the initial contract. It’s not a one-time event—it’s an ongoing process. 

An optimized strategy includes: 

• Continuous monitoring of payment performance and cost drivers 
• Cross-functional alignment between finance, payments, operations, and IT 
• Agility to adapt to new card brand rules, fee changes, or processor capabilities 
• A focus on data enablement—making sure the right data is being captured and used 
• A trusted partner or platform to help you identify, prioritize, and execute savings opportunities 

This kind of strategy isn’t just about saving money (though that’s a nice outcome). It’s about being more efficient, more informed, and more in control of your payments operation. 

Think You’re Optimized? It Might Be Time for a Second Look. 

If you’ve negotiated a great rate with your processor—great! That’s a smart step. 
But don’t stop there. 

There are bigger savings to uncover, and most of them are hiding in the details of your payments data. And unless you’re actively tracking those details, you might be leaving a lot of money on the table.