An acquirer is a business bank with which a merchant or CPSP can enter into an agreement to receive iDEAL payments.

In the context of iDEAL, consumers are the individuals who use iDEAL to pay for a merchant’s product or service online.

An issuer is a consumer bank that enables its account holders (consumers) to pay with iDEAL through online banking.

A merchant is a retailer, business or organisation that receives iDEAL payments from consumers.