'Non-qualified' is the phrase that costs you the most.

The three-bucket system

Tiered pricing — one of the oldest processor pricing models — sorts every transaction into one of three buckets: qualified (the lowest rate, for basic swiped debit and standard credit cards), mid-qualified (a middle rate, often for rewards cards or keyed transactions), and non-qualified (the highest rate, for premium rewards cards, corporate cards, card-not-present transactions, or anything that doesn't meet the processor's criteria for a lower tier).

The catch is that processors on tiered pricing set their own criteria for what qualifies for which tier — unlike interchange-plus pricing, where the tiers are the actual, published interchange categories. A processor can quietly define 'qualified' narrowly enough that a large share of ordinary transactions fall into the expensive non-qualified bucket, even though the underlying interchange cost for that specific card wasn't actually that high.

Why this is where most overpayment hides

If you're on tiered pricing and a meaningful share of your transactions are landing in non-qualified, that's the single biggest lever for a rate review — not because your card mix is unusual, but because the tier definitions themselves may be set to maximize non-qualified volume. This is one of the most common patterns behind a 'my rate looks reasonable but my bill is high' statement.

Interchange-plus pricing sidesteps this entirely: you pay the actual published interchange rate for each specific card, plus a fixed markup, with no processor-defined tier boundaries to hide behind. It's the reason interchange-plus is generally recommended over tiered pricing once a business has meaningful, consistent volume.

Common questions