Merchant Processing Auditing Services

Stop Losing Profit to Card Fees — Save 15–20% Without Changing Processors

Our merchant processing experts uncover interchange inefficiencies, hidden markups, and padded fees buried in your credit card statements. Using the P3 proprietary database of processor benchmarks, we help you reclaim margins and optimize every transaction.

Bloated Surcharge and Markups

Duplicate or Hidden Fees

Incorrect Interchange Charges

Above Market Rates

What Is a Merchant Processing Audit?

A merchant processing audit is a forensic analysis of your payment processing system — from interchange rates and data quality to processor fees and chargeback handling.

At P3 Cost Analysts, we dig into your monthly statements and transaction data using our proprietary benchmark database to identify excessive costs, uncover hidden surcharges, and compare your rates to true market pricing. Then, we renegotiate and reconfigure your setup to ensure every transaction clears at the lowest justifiable cost.

Most clients reduce their effective card-processing rate by 15–20% — and often without changing processors or disrupting payment flow.

What We Audit

Our analysts dissect every element of your merchant processing environment, including:

Each variable is cross-checked against the P3 database — representing thousands of processor arrangements across industries — to ensure no hidden premium remains undetected.

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Why Merchant Processing Costs Creep Up

Card fees are intentionally opaque. Processors, gateways, and card brands all take a slice — and without ongoing oversight, costs escalate silently.

Here’s why your rates drift upward:

“Tiered” pricing models

that hide true interchange costs

Non-qualified transactions

due to missing Level 2/3 data fields

Overlapping or padded fees

labeled “PCI,” “batch,” or “statement”

Misclassified SIC codes

that push you into higher interchange categories

Processor incentives

to steer you into higher-margin rate structures

Our Proven 4-Step Process

Engagement & Data Gathering
We need 4 months of merchant statements to begin.
Forensic Audit & Benchmarking

We cross-check every line item against contract terms, interchange rates, and competitive benchmarks.

Deliver Findings & Recommendations
We present identified overcharges, contractual risks, and savings opportunities.
Implementation, Ongoing Monitoring & Enforcement
We implement the savings with the vendors, and each month, we audit new bills to catch vendor violations and overcharges.

Engagement model: 100% contingency-based. You pay only when we deliver measurable savings.

Benefits You Can Expect

15–20% reduction in total card-processing costs

Transparent, verifiable fee structures

Optimized interchange qualification through data enrichment

Stronger negotiating leverage backed by the P3 proprietary benchmark database

Ongoing rate monitoring to prevent pricing drift

Zero-risk engagement — you only pay when we save you money

Who We Help

Frequently Asked Questions

There are no upfront fees or charges. We only bill based on implemented savings, that are easily quantifiable. These are easily seen comparing the charges we achieve for you on the new invoices, vs the old invoices.

Then we simply share in the savings each month for a finite period of time (12-60 months depending on the level of service our clients want).

We need 4 months of statements. We can often get these invoices via online login portals our clients already have set up.

Yes. We work directly with the telecom providers to negotiate refunds/credits, and implement the corrections moving forward.

Our service is contingency-based—there’s no upfront cost, and fees are tied to verified savings. If we don’t find you savings, that don’t hit your bottom line, there is no fee. It’s that simple.

We aim to deliver our initial findings within 30 days and deliver savings within 90 days to your bottom line.

If you work for a business or own one, you’ve been managing these expenses since the beginning. We find savings 90% of the time for businesses and organizations we look at.

However, if the answer to all of the following is true, you may not need our help.

  • Do the person managing this know your processor’s break-even costs to process for your account, and how much incremental profit your account represents?  
  • Do they know what price and pricing methodology to request?
  • Do they know all the Interchange categories (there are over 225) and the Debit Network Fee categories (there are over 50).  
  • Do they know all the qualifications necessary to obtain the most favorable transaction costs on each?    
  • Do they know what changes can be made with your internal method of payment acceptance that can result in greater efficiency, more security, and lower processing costs?
  • Is the person who is managing this expense category, only managing that expense, and has no other duties?
  • Are they incentivized to save every dollar on a performance basis in that particular expense category?
  • Do they have over 10 years (minimum) of sole focus on this particular expense category, doing nothing else each day?
  • Do they have access to thousands of other comparable data points across industries, organizations, and peers outlining comparable costs (at a line-item level) of this particular expense category?

If the answer to all of those is ‘yes’ then we would concede a merchant account cost reduction audit by experts may not yield results.  However, given we only charge if we find savings, it’s certainly worth a shot and we are happy to invest our time and resources on our client’s behalf.  

Do you have more questions?

Related Services

No upfront cost. No obligation. Just clarity and potential savings.

Ready to stop losing margin to avoidable card fees?

Schedule your free Merchant Processing Audit today.

No upfront cost. No obligation. Only results — backed by P3’s proprietary benchmark intelligence.

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