How to read a merchant statement: interchange, assessments, and the fake fees

Merchant statements are designed to be unreadable. Not by accident — by intent. The processor knows that if you could see the line between true cost and their margin in 60 seconds, you'd be on the phone re-quoting every quarter. So the statement is 11 pages, three font sizes, six fee schedules, and a "summary" page that totals nothing useful.

This is the operator's walkthrough. We'll show you the three categories every fee on your statement falls into, the nine line items that are almost always padding, and the question to ask your processor that ends the negotiation in your favor.

The three categories every fee belongs to

1. Interchange — paid to the issuing bank

This is the largest line on most statements and the only one your processor doesn't keep. Interchange is set by Visa, Mastercard, Discover, and Amex and paid to the bank that issued your customer's card. Rates vary by card type (rewards, business, debit, international), transaction type (CNP, swiped, keyed), and merchant category code. A typical CNP ecommerce transaction with a U.S. consumer rewards Visa runs about 1.65% + $0.10. A business card runs ~2.95% + $0.10. Debit runs ~0.05% + $0.22.

If your statement doesn't break out interchange by card type, you're on a tiered or flat-rate plan and you're overpaying. Period.

2. Assessments — paid to the card networks

Assessments are Visa, Mastercard, Discover, and Amex's share. Roughly 0.13–0.15% of volume plus a few sub-fees:

• Visa Assessment: 0.14% of volume
• Visa Acquirer Processing Fee (APF): $0.0195 per auth
• Mastercard Assessment: 0.1375% under $1k, 0.01% surcharge over $1k
• Mastercard NABU (auth fee): $0.0195
• Mastercard Cross-Border Assessment: 0.6% domestic-currency, 1% non-USD
• Discover Assessment: 0.13% + $0.0195

These are real, fixed, non-negotiable. Every processor pays them. If your statement bundles them into something opaque like "network access" or "regulatory," you're being marked up on pass-through fees — which is a tell.

3. Processor margin — paid to your acquirer/ISO

Everything else. This is what your processor actually earns. On a clean interchange-plus statement, margin shows up as a single transparent markup (e.g. "+0.30% + $0.10"). On a tiered statement (qualified/mid/non-qualified), margin is hidden across three tiers and usually runs 1.5–2.5% on top of true cost. On a flat-rate statement (Stripe, Square, PayPal), margin is bundled into the headline rate (2.6–2.9%) and runs 0.8–1.4% above true cost on a typical mix.

The nine fees that are almost always padding

1. PCI non-compliance fee

$25–$50/month charged to merchants who haven't completed the annual PCI SAQ. Solution: complete the SAQ. Takes 20 minutes for an SAQ-A merchant. The fee disappears the moment you submit. Never pay this for more than one billing cycle.

2. PCI compliance fee

The flip side: $99–$150/year charged for "providing the PCI compliance program." You can decline this in most contracts and run your own SAQ via the SAQ-A form on the PCI Security Standards Council site. Free.

3. Monthly minimum

"If your fees don't reach $25/month, we charge the difference." Pure rent. Negotiable to zero on any portfolio doing more than $10k/month.

4. Batch fee

$0.10–$0.25 per daily settlement batch. Real cost is fractions of a cent. On a daily-batching merchant that's $3–$8/month of pure margin. Negotiate to $0.05 or zero.

5. Statement fee

$5–$15/month for "providing the monthly statement." It's a PDF. Negotiable to zero, especially if you accept e-statements.

6. IRS reporting fee

$2–$4/month "for filing your 1099-K." Federally required filing the processor must do regardless. Pure padding. Negotiable to zero.

7. Network access / regulatory fee

$5–$25/month with vague descriptions. Sometimes legitimate (gateway access fee for Authorize.net is real at $25/month), often padding. Ask exactly what service it covers; if the answer is "network connectivity" with no SKU, it's margin.

8. Retrieval request fee

$10–$25 each time a customer's issuing bank requests a copy of a transaction receipt. Real cost is near zero — the processor pulls it from their database. Negotiable down to $5 or absorbed.

9. "Annual fee" / "membership fee"

$79–$199 charged once per year, usually buried in the Q1 statement. No service attached. Negotiable to zero on contract renewal — or threaten to leave and it disappears.

The two-question audit that re-prices your processing

Question 1: "Send me an interchange-plus statement for the last full month."

If you're currently on tiered or flat-rate, ask your processor to send the same month's volume reformatted as interchange-plus. They have the data — every transaction is interchange-categorized internally regardless of how they bill you. Some processors will do this on request; some will refuse, which tells you everything about their margin.

With the interchange-plus version in hand, you can compute true effective margin: subtract interchange + assessments from total fees, divide by volume. That number is what your processor is keeping. If it's above 0.50% on a clean ecommerce profile, you're overpaying.

Question 2: "What's the markup on a 1.65% rewards Visa CNP transaction?"

If they can't answer in basis points, you're on a hidden-margin plan. The answer should be a single number: "+30 basis points + 10 cents per transaction." If it's "well, that depends on your tier," they're hiding the markup on purpose.

What a clean statement looks like

Page 1: total volume, total fees, effective rate. Page 2: interchange table, every card brand and category broken out, true cost line by line. Page 3: assessments, every network broken out at the published rate. Page 4: processor margin, single line: discount rate + transaction fee. Page 5: pass-through items (chargebacks, refunds, retrievals) with their actual cost. That's it. Five pages, no padding, defensible quarterly.

If your current statement is 11 pages and you can't tell the operator what their effective margin is, that's the statement to re-shop. multiflow runs interchange-plus with single-line margin on every transaction across every brand in your portfolio — see the pricing page for the structure or compare against your current effective rate on the 15-account math.

One-page checklist before you renew

• Pull the last full month's statement.
• Add up interchange + assessments. That's true cost.
• Subtract from total fees. That's margin.
• Divide margin by volume. That's your effective markup.
• If markup > 0.50% on standard ecommerce or > 0.85% on high-risk, re-quote.
• Cancel every padded line item before renewal — they're negotiable.

The processors who make money on padding lose customers who learn to read statements. The processors who make money on volume don't pad. Pick the second kind.