How to read a merchant statement, section by section

How do you read a merchant statement? Work from the totals down. The summary shows what you sold, what you paid and what was deposited. The deposit section ties that money to your daily batches. The fee sections split what you paid into interchange, card network fees and your processor's own charges. Then one division, total fees over total card sales, gives you your effective rate, the single number that sums up the month.

A warning before you start: no two processors lay out a statement the same way. Section names, page order and the level of detail all differ, so treat the labels in this guide as examples. We'll walk through a sample statement for a made-up florist in Tampa, with every number worked out so you can check the math. Network rates are from the Visa and Mastercard US schedules in force as of October 2026.

What's on a merchant statement?

Most statements cover the same ground, even when the order changes:

The merchant ID in the header is the number your processor uses to find your account; our guide to the merchant ID explains where else it appears.

In Canada, the Code of Conduct for the Payment Card Industry spells out what statements must show at least monthly, including the rates and totals for interchange, network assessment fees and all other fees, and your effective merchant discount rate for each card type (FCAC). Our Canada page has more on the Code.

Step 1: Read the summary page

The summary is your month on one screen. Here's the florist's September:

Check the card sales figure against your POS or sales reports for the same dates. If they don't match, find out why before you look at a single fee: a missing day usually means a batch that never settled. Note the chargeback too. It's a sale taken back, and its fee sits elsewhere on the statement.

Step 2: Match the deposits to your batches

Every deposit should trace back to a batch, the bundle of sales your terminal sends to your processor when it closes out. Funding comes in two styles. Some processors deposit your sales net of fees every day; others deposit the full amount and take all the fees in one debit at month's end. Our florist is on monthly billing, so its deposits total $37,470.00, and $818.64 comes out in early October.

What to look for:

• A day with sales but no deposit, which usually means a batch didn't settle.
• A deposit smaller than the batch, with no refund to explain it.
• Money held back. The OCC's handbook for bank examiners lists delayed settlement and reserves among the tools acquirers use for merchants with heightened fraud and chargeback risk. If yours appears, ask why and when it will be released.

Our guide on how long card payments take explains batching and funding timelines, and our post on same-day funding covers faster options.

Step 3: Check the card type breakdown

This section shows how your customers paid. The florist's month:

Your card mix drives most of your cost, because interchange varies so much by card. Debit is often the cheapest card you accept, so a business where 29% of volume is debit, like this one, should see that reflected in its fees. On a flat rate, it won't.

American Express is often priced differently. Under Amex's OptBlue program for small businesses, American Express says "your provider sets your American Express Rate" (American Express), so it may show up as its own line with its own rate. Our guide to Amex OptBlue explains how that works.

Step 4: Read the interchange section

Interchange is the fee that goes to the bank that issued each card. On interchange-plus pricing, each category gets its own line, and you can check every one against the published schedules. Here are the florist's Visa, Mastercard and debit lines:

Every rate matches Visa's schedule effective April 18, 2026 (Visa) or Mastercard's effective April 17, 2026 (Mastercard). To check a line, multiply the volume by the percentage and add the count times the per-sale fee. For the first line: 1.65% of $9,600 is $158.40, plus 150 times 10 cents, for $173.40.

The regulated debit line deserves its own check. The Federal Reserve caps interchange on debit cards from issuers with $10 billion or more in assets at 21 cents plus 0.05%, plus 1 cent for eligible issuers (Federal Reserve). Here, $39.20 over 160 sales is 24.5 cents each, exactly the cap on a $50 sale. If your regulated debit averages well above the cap for your ticket size, ask why.

Now the question this section exists to answer: does every category fit how you sell? The florist only sells at the counter, yet 10 sales landed in Non-Qualified Consumer Credit at $19.90. Had they qualified as Traditional Rewards in person, they'd have cost $10.90. Nine dollars isn't much, but it repeats every month until someone asks why. Our guides to Visa interchange rates and Mastercard interchange rates show how to find each category.

Step 5: Find the card network fees

Visa and Mastercard charge their own fees on top of interchange. Statements label them in many ways, as assessments, card brand fees or network fees, and some processors break them into a dozen small lines. The florist's statement shows $48.60 in network fees for the month, a made-up figure for this example.

You can't negotiate network fees, but you can check two things. First, that they're itemized, so you can see what each one is. Second, that your processor bills them at cost. A line with an official-sounding name like "regulatory fee" or "network access fee" deserves a question: ask which network fee it passes through, and ask for that answer in writing. Our list of hidden fees in credit card processing covers lines that only look official.

Step 6: Separate your processor's fees

Everything left is your processor's, and this is the part you can negotiate. The florist's:

• Markup: 0.20% of $35,200 is $70.40, plus 10 cents on 600 sales, $60.00, for $130.40.
• American Express: $2,800 at a made-up 2.50% rate set by the provider, $70.00.
• Monthly account fee: $10.00.
• PCI program fee: $8.00.
• Chargeback fee: $20.00 for the one dispute.

Check the markup against your agreement. If your contract says 0.20% plus 10 cents and the statement shows something else, that's the first call to make. Then look at every monthly fee and ask what it buys. Our guides to the PCI compliance fee and the chargeback fee explain those two lines.

How do you calculate your effective rate?

Divide total fees by total card sales. For the florist, that's $818.64 divided by $38,000, or 2.15%. Here's where it comes from:

The pass-through costs, interchange plus network fees, are $580.24, or 1.53% of sales. The processor's own share, the markup plus account and chargeback fees, is $168.40, or 0.44%. That second number is the one to compare when you shop around.

Two cautions. Some people divide by net sales instead of gross; either works if you're consistent month to month. And don't hold your effective rate up against a number you read somewhere. Card mix moves it a lot: a debit-heavy shop can post a low rate on a poor deal, and a business full of premium rewards cards can post a high rate on a good one. Track your own rate monthly and investigate any jump that your sales and card mix don't explain. Our guide to the merchant discount rate covers the related numbers.

What does a flat-rate or tiered statement look like?

Shorter, and much harder to check. On a flat rate, the florist's month might be a single line: 640 sales, $38,000, at a made-up 2.8% plus 10 cents, for $1,128.00, or 2.97%. There's no interchange section, so you can't see that its debit sales cost a fraction of its rewards card sales, or how much of the $1,128 is markup.

A tiered statement shows a few rate buckets instead of interchange categories. Washington State's Attorney General passes along the test: if you see charges for "qualified," "mid-qualified" or "non-qualified" transactions, you're on a tiered model (Washington State Attorney General). Our guides to tiered pricing and interchange-plus vs flat rate show what each model costs on the same sales.

Red flags on a merchant statement

Any of these is worth a call to your processor:

• An effective rate that jumps when your sales and card mix didn't change.
• Key-entered or non-qualified lines at a business that dips or taps every card.
• Card-not-present lines when you only sell in person.
• Regulated debit averaging well above the federal cap for your ticket size.
• A markup or per-sale fee that doesn't match your agreement.
• A PCI non-compliance fee.
• A monthly minimum charge.
• New fee lines, or changes announced in a statement message you never saw.
• Deposits that don't match your batches.

Interchange categories and the debit cap are national, so these checks work for any business in the United States.

What should you do if a line looks wrong?

Ask in writing, and be specific. Name the statement month, the line, the amount and what you expected instead: "10 sales in Visa Non-Qualified Consumer Credit at a counter-only shop," or "markup billed at 0.25% when my agreement says 0.20%." A written question gets a written answer, and you'll want that record if the problem comes back.

Then follow it through:

1. Ask what caused it: a terminal setting, a late batch, a wrong business category, a contract change.
2. Ask whether it will be fixed going forward and refunded for past months.
3. Check the next statement to confirm the fix actually happened.
4. If the answer is vague, or the line keeps coming back, have the same month priced by another processor and compare the totals.

A processor that can explain every line quickly is worth a lot. One that can't is showing you how the next year will go.

The next step

Pull last month's statement and work through the six steps, then calculate your effective rate and your processor's share. If the statement doesn't give you enough detail to do that, that's a finding too. Send it to us for a free statement review and we'll go through it line by line and show what the same month would cost on our interchange-plus pricing. Our page on credit card processing fees explains each layer, and our playbook on how to reduce credit card processing fees covers what to do next.