Merchant Statement Questions

What this category covers

This category covers reading a processing statement line by line to separate pass-through cost from processor markup and find the downgrades. The answers are written to give you the structure of the decision - what has to be true, who decides it, and what to get in writing - rather than a single number that stops being accurate the moment your volume or card mix changes.

Where an answer depends on your own account, it says so and points at the statement line that would tell you. A page cannot know your effective rate, and any page that claims to is guessing.

Why it matters operationally

Everything a provider will tell you about your account is already on your statement, stated less favourably.

The cost of getting this wrong is rarely dramatic. It is a few basis points on every transaction, every month, which is exactly why it goes unexamined for years.

Where operators go wrong

• Auditing a single month, which can be unrepresentative.
• Not asking the provider, in writing, what percentage qualified at Level 3.

1 question in this category

• How do I read a merchant processing statement?

  Work in three passes. First, total every fee for the month and divide by total volume to get your effective rate. Second, separate the statement into interchange (set by the card networks, pass-through), assessments (Visa and Mastercard, also pass-through) and markup (your processor's margin, the only negotiable part). Third, find the commercial card transactions and check which interchange category each settled at.

  Updated September 30, 2026

This category is still being built out. We keep it linked from the questions hub, but hold it back from search listings until it carries at least 3 published answers — a page with nothing to list is not worth anybody's click.

What to read next

Run the statement audit checklist yourself, then compare it against a free interchange audit.