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What is a card-network assessment fee, and why is it not your processor's to set

Short answer: a card-network assessment fee is a pass-through charge Visa, Mastercard and the other card networks levy on every transaction they carry. Your processor collects it and passes it on. It is not markup, it is not negotiable, and a processor who offers to lower it is describing something it does not control.

Who sets the assessment fee?

The card networks set it, publish it in their own fee schedules, and change it on their own timetable. Neither your processor nor Payzium has any say in the number. That is why it appears at the same rate on statements from providers who otherwise price nothing alike, and why assessment costs stay similar between providers while markups vary widely.

Assessment fee vs interchange vs processor markup

Three different pockets, and telling them apart is most of the work of reading a statement. Each one is set by a different party, which is why they do not all move together when you change providers. A statement that blends them into a single rate is hiding which pocket grew.

  • Interchange goes to the card issuer.
  • The assessment goes to the card network.
  • The markup goes to your processor, and it is the only one of the three your processor sets.

Confusing the assessment with markup is the easiest way to misjudge a competing offer, in either direction.

Why does it show up as its own line on some statements but not others?

Because bundling it hides it. A processor on interchange-plus pricing shows the assessment as its own pass-through line. A processor on bundled or tiered pricing folds it into one blended rate, where it sits alongside actual markup and becomes impossible to separate without doing the arithmetic yourself.

Can your processor remove or reduce it?

No. The assessment is owed to the network regardless of who processes your cards, so nobody can waive it. What a processor can change is what it adds on top. If someone offers to cut your assessment fee, ask instead what their own margin is, because that is the negotiable part.

Should you focus on assessment fees when comparing processors?

No. Because the networks set them, they move very little between providers. When you compare offers, the numbers actually in play are the processor's margin, the monthly account fees, and the pricing model that decides how visible everything else is on the page.

How do you find it on your own statement?

Look for a line naming the network rather than your provider: assessment, network access, brand usage, or similar wording. If your statement shows one blended rate, the assessment is folded inside it.

Remember: the networks set it, your processor collects it, and the negotiable line is the markup. Upload your statement to Rate Check to compute your own effective rate.

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Every week we take one line off a real merchant statement and explain what it is, who set it, and whether it can come off. No sales calls.

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