Accepting Discover as a merchant

Capital One completed its acquisition of Discover on 18 May 2025. The Discover, PULSE and Diners Club International networks moved into Capital One’s suite of offerings, and Discover-branded card products continue to be issued. Capital One described Discover as having built a global payments network with 70 million merchant acceptance points across more than 200 countries and territories, while being the smallest of the four US-based global networks, and framed the acquisition as adding the scale needed to compete with the largest networks and to work more directly with merchants.

Discover’s network carries Diners Club International and, in many markets, JCB transactions under reciprocal arrangements. That means these three often arrive in your acquiring agreement as a single bundled line rather than as three negotiated rates, which is convenient administratively and unhelpful commercially.

Global Payments, Sipay and Datatrans all name Discover among the brands they accept, as do most international acquirers. The useful questions are what the effective rate on this bundled volume is, whether the three networks are priced separately, how the volume authorises against your card average, and whether the rate has ever been negotiated rather than simply applied.

What you pay is set in your acquiring contract, not by the network. Start by establishing whether you are overpaying your PSP, or move straight to cutting your PSP costs, where interchange, scheme fees and markup are separated before anything is negotiated.

Relevant markets: United States, global inbound