How to read a merchant statement

Why it matters

A merchant statement is the monthly record of card sales, transactions, fees, and adjustments. It is also the best starting point for understanding what a business is actually paying.

1. The account summary

Begin with total card volume, transaction count, and total fees. Then calculate the effective rate by dividing total fees by total card volume and multiplying by 100 (see a worked example). The result is not a quote or a guarantee; it is a clean baseline for comparison.

2. Transaction detail

Separate card-present, keyed, invoice, recurring, and online volume. Different payment environments carry different costs and risks, so a blended total can hide the reason one month changed.

3. The fee breakdown

Look for processor markup, assessments, transaction charges, batch fees, gateway fees, and PCI-related charges. Compare each with what your agreement says.

4. Monthly charges and contract terms

Check the recurring monthly charges, any equipment obligations, and the contract terms that come with them.

5. Chargebacks, refunds, and adjustments

Finish with chargebacks, refunds, and other adjustments. They explain why a month’s net deposits can differ from its sales.

The goal is not to label every fee “bad.” The goal is to understand what each line pays for, whether it matches the agreement, and whether the overall solution still fits the business.