How American Express Makes Money

American Express runs a closed-loop payments business: it issues the card, owns the network, underwrites the credit and contracts with the merchant. Visa and Mastercard only move the transaction between an issuing bank and an acquiring bank, so they never see both sides of a purchase. Because Amex holds every side of the relationship, it keeps the whole merchant discount fee rather than sharing it, and in FY2025 discount revenue equalled 2.24 percent of the $1,669.8 billion its card members billed. The trade-off is price: merchants pay more to accept Amex than to accept an open-loop card, so the company has to justify the rate with card members who spend more. Average spending per proprietary basic card member was $25,453 in 2025. Amex funds that proposition with annual fees, which reached $10.0 billion in net card fees in FY2025 at an average of $117 per proprietary card, and spends the money back on Membership Rewards, the Centurion Lounge network, Resy and Tock dining access and service. Since converting to a bank holding company in 2008 it has also lent against card balances through American Express National Bank, producing $17.4 billion of net interest income in FY2025.

Amex's growth strategy is aggressively focused on capturing the next generation of wealthy spenders: Millennials and Gen Z. They have successfully revamped their well-known Platinum and Gold cards with perks tailored specifically for younger demographics (like Uber credits and dining rewards), resulting in rapid growth among younger cohorts. Additionally, they are heavily targeting small and medium-sized businesses (SMBs), aggressively expanding their corporate card and B2B payment processing services to capture large commercial spending volumes.