How to read a merchant processing statement
Interchange, processor markup, and the fees that are structural rather than unavoidable, explained line by line so you can calculate what you really pay.
What is a merchant processing statement?
It is the monthly report from your payment processor: the card sales you ran, the fees taken to process them, any chargebacks or adjustments, and the net amount deposited. Statements are laid out differently by processor and are rarely designed to be read. The good news is that every one of them contains the same handful of pieces once you know what to look for.
What is interchange?
Interchange is the fee set by the card networks and paid to the bank that issued the customer's card. It varies by card type (debit, consumer credit, rewards, business, corporate), by how the card was presented (chip, tap, keyed, online), and by the data sent with the transaction. Every processor pays the same interchange, so it cannot be negotiated. On an interchange-plus statement it appears as its own section, usually with dozens of category names. On a flat-rate or tiered statement it is blended into the rate you see, which is the main reason those statements are harder to evaluate.
Where is the processor markup on my statement?
Above interchange sit two more layers. Assessments are small percentage fees charged by Visa, Mastercard, Discover, and American Express on volume; they are pass-through and the same for everyone. Processor markup is everything else the processor adds: a percentage over interchange, a per-transaction amount, or both. On interchange-plus statements the markup is stated as something like a rate plus cents per item. On flat-rate and tiered statements it is inside the qualified, mid-qualified, and non-qualified rates, and you have to back it out.
Interchange-plus
The most transparent structure. Interchange and assessments pass through at cost, and the markup is printed as its own line. Compare processors by comparing the markup.
Tiered
Transactions are sorted into qualified, mid-qualified, and non-qualified buckets with a rate for each. The processor decides which bucket a transaction lands in, and the markup is hidden inside the rates.
Flat rate
One rate for everything. Simple, and often reasonable at low volume, but at higher in-person volume the blended rate usually costs more than interchange-plus because the markup is baked into every transaction.
How do I calculate my effective processing rate?
Divide total fees for the month by total card volume for the month. If the statement shows $100,000 in card sales and $3,200 in fees of every kind, the effective rate is 3.2 percent. Include everything: interchange, assessments, markup, per-item fees, monthly fees, PCI and compliance fees, equipment charges, and any one-time adjustments. The effective rate is the number that lets you compare two statements or two processors on equal terms, regardless of how each one formats its pages. Track it monthly; a rising effective rate with steady volume means something changed in card mix, in fees, or in how transactions are being categorized.
| Line | Where to find it | What it tells you |
|---|---|---|
| Card volume | Summary page, by card brand | The base every fee is applied to |
| Interchange and assessments | Pass-through or interchange section | Network cost, the same for any processor |
| Processor markup | Discount rate, plus per-item fees | The negotiable part |
| Monthly and annual fees | Fees or other charges section | Fixed cost regardless of volume |
| Adjustments and chargebacks | Adjustments section | One-off items that distort a single month |
What fees should I look for?
- Statement, account, or service fees that appear every month
- PCI compliance or non-compliance fees, and whether a validation was ever completed
- Monthly minimums that bill when volume dips
- Equipment rental or lease charges for terminals you could own outright
- Batch, gateway, and authorization fees billed per item
- Transactions billed at higher interchange categories because of how they were entered or settled, sometimes called downgrades
- Annual fees, early termination clauses, and auto-renewal dates buried in the terms
Does changing processors mean changing my POS?
It depends on the platform. Some POS platforms bundle processing as part of the product; the software, terminals, and processor come together, and changing the processor generally means leaving the platform. Others are open: the POS works with several processors through certified integrations, and the merchant account is a separate agreement that can change while the POS stays. Which one you have is usually clear from the contract and the statement. The specific processors available on an open platform depend on the version and the payment integration in use, so confirm before assuming a switch is possible.
What changes when I have several locations?
More volume means more room to negotiate the markup, and more locations means more chances for pricing to drift. Pull one full statement per site and compare effective rates across them. Sites on the same platform and processor should look alike; if one is an outlier, the reason is usually a different pricing structure, an equipment lease, or a fee that was added at that site and never questioned. Check contract terms and renewal dates per site as well, since they rarely line up.
Where does Days Dynamics fit?
If you would rather have someone read the statement with you, the review does exactly this: effective cost, markup, fees, pricing structure, and whether your POS allows a processor change. Any potential saving is calculated from your statement and confirmed with the processor before you commit, and if the statement is already in good shape we say so. If the platform itself is the problem, the same conversation covers POS options.
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