MDR

The headline percentage rate the merchant pays the acquirer per transaction. Under blended pricing, MDR is a single all-in number; under IC++ pricing, MDR refers only to the acquirer's markup over interchange and scheme fees.

In practice.

MDR is the headline percentage of each sale that processing costs you, but the composition matters more than the number: under IC++, interchange and scheme fees pass through at cost with a visible markup, while blended rates hide the mix. Always compare offers on the same pricing model.

Related terms: IC++ · Blended pricing · Interchange