Capital One → Discover Financial

A $35bn all-stock deal that made Capital One the largest US credit card lender by loans and the only large issuer to own a payment network of its own, alongside Visa, Mastercard and American Express.

An all-stock deal that made Capital One the only large US card issuer to run its own network alongside Visa, Mastercard and American Express.

Value

$35.3B

Announced

February 2024

Completed

May 2025

Sector

Banking

Deal type

acquisition

Acquirer

Capital One (United States)

Target

Discover Financial (United States)

Why it mattered

Every card Capital One issued ran on Visa or Mastercard, which took a share of the interchange and set the rules. Discover ran its own network — smaller, accepted in fewer places, but a network — and Capital One's plan was to move its debit and a growing share of its credit volume onto it, keeping the network fees and gaining a bargaining chip against the two incumbents. The deal was also a bet on scale in card lending at a time when the Credit Card Competition Act and a proposed cap on late fees threatened issuers' economics.

Approval took fifteen months and came with conditions: Discover had paid $1.2bn to settle its own misclassification of merchant accounts before the deal, and the Federal Reserve's consent order on that matter transferred to the buyer. The deal closed in May 2025.

What it left behind

A fourth US network with a large issuer behind it for the first time since American Express, and a test of whether an issuer-owned network can win merchant acceptance against Visa and Mastercard's ubiquity. For fintechs issuing cards under bank sponsorship it added a potential fourth counterparty; for the merchants who lobbied for the Credit Card Competition Act it was evidence that competition among networks might come from consolidation rather than legislation.