Visa: The Larger Twin Mastercard OutbidsNarrow moat

Mastercard (MA) — moat facet

Mastercard and Visa never cut prices to merchants; they bid for banks, and the smaller network bids higher.

Visa is the competitor that shapes Mastercard more than any other, because the two are almost the same business. Both run four-party networks, both earn assessments and processing fees, both sell to the same banks. The difference is size: in the United States Visa cards carried $7.028 trillion of purchase volume in 2025 against $2.958 trillion on Mastercard1, and Visa's share of the two networks' purchase volume was 70.38%2.

US purchase volume growth, 2025 (%)6.8%Visa6.3%MastercardNilson Report, Mastercard and Visa Cards in the US, 2025
Close, and still slightly behind at home.

Neither has ever competed by cutting the merchant fee. The bank chooses the network and the merchant pays, so the contest runs through incentives to issuers. There Mastercard, the smaller network, pays more: $20,522 million of payment network rebates in 20253, against client incentives of $15,751 million in Visa's fiscal 20254, on net revenue of $32,791 million against Visa's $40,000 million56.

Outside the United States the balance is more even, and there Mastercard is growing well. Gross dollar volume outside the United States was $7,413 billion in 2025 against $3,220 billion inside it7, and in the second quarter of 2026 growth was 8.5% in Europe and 13.9% in Latin America against 5.5% in the United States8.

The duopoly is also part of each network's defence. Two networks look like a market to regulators in a way a single network would not.

The two companies' growth profiles have converged on services. Visa's value-added services and Mastercard's are both growing faster than their networks, and both use the same argument: the network's data makes the services better. Mastercard's services line, at $13,315 million in 20259, is the larger in absolute terms relative to its network. If the next decade of competition between the twins is fought on services rather than on rebates, Mastercard starts it from the stronger position, which is the reverse of its position on the network.

The rivalry is stable; the price of it is not. The number that would show Mastercard gaining is its American volume growth outpacing Visa's; in 2025 it was 6.3% against 6.8%10.

Moat trajectory: Holding steady

US share near 30% of the two; growth slightly behind Visa at home, ahead abroad.

The number that tests this moat
Third-party estimate
US purchase volume growth against Visa
+6.3% vs +6.8% (2025)

The twin's contest in the home market; three years of Mastercard growing faster would say it is gaining.

Source: Nilson Report, Visa and Mastercard in the US, 2025 ↗
References
  1. Third-party estimateThe difference is size: in the United States Visa cards carried $7.028 trillion of purchase volume in 2025 against $2.958 trillion on Mastercard, and Visa's share of the two networks' purchase volume was 70.38%.
    The Nilson Report, Mastercard and Visa Cards in the US - 2025: purchase volume $7.028 trillion on Visa and $2.958 trillion on Mastercard. — 2025 · publ. 2026 · source ↗
  2. Third-party estimateThe difference is size: in the United States Visa cards carried $7.028 trillion of purchase volume in 2025 against $2.958 trillion on Mastercard, and Visa's share of the two networks' purchase volume was 70.38%.
    The Nilson Report, Mastercard and Visa Cards in the US - 2025: purchase volume $7.028 trillion on Visa and $2.958 trillion on Mastercard. — 2025 · publ. 2026 · source ↗
  3. ReportedThere Mastercard, the smaller network, pays more: $20,522 million of payment network rebates in 2025, against client incentives of $15,751 million in Visa's fiscal 2025, on net revenue of $32,791 million against Visa's $40,000 million.
    Mastercard Form 10-K for fiscal 2025 - Item 7 MD&A: key metrics, assessments and rebates. — FY2025 · publ. 11 February 2026 · source ↗
  4. ReportedThere Mastercard, the smaller network, pays more: $20,522 million of payment network rebates in 2025, against client incentives of $15,751 million in Visa's fiscal 2025, on net revenue of $32,791 million against Visa's $40,000 million.
    Visa Form 10-K for fiscal 2025 - client incentives of $15,751 million and net revenue of $40,000 million. — FY2025 · publ. November 2025 · source ↗
  5. ReportedThere Mastercard, the smaller network, pays more: $20,522 million of payment network rebates in 2025, against client incentives of $15,751 million in Visa's fiscal 2025, on net revenue of $32,791 million against Visa's $40,000 million.
    Mastercard Form 10-K for fiscal 2025 - Item 7 MD&A: key metrics, assessments and rebates. — FY2025 · publ. 11 February 2026 · source ↗
  6. ReportedThere Mastercard, the smaller network, pays more: $20,522 million of payment network rebates in 2025, against client incentives of $15,751 million in Visa's fiscal 2025, on net revenue of $32,791 million against Visa's $40,000 million.
    Visa Form 10-K for fiscal 2025 - client incentives of $15,751 million and net revenue of $40,000 million. — FY2025 · publ. November 2025 · source ↗
  7. ReportedGross dollar volume outside the United States was $7,413 billion in 2025 against $3,220 billion inside it, and in the second quarter of 2026 growth was 8.5% in Europe and 13.9% in Latin America against 5.5% in the United States.
    Mastercard fourth-quarter and full-year 2025 results release, Form 8-K exhibit 99.1 - statements, cash flow and operating metrics. — FY2025 · publ. 29 January 2026 · source ↗
  8. ReportedGross dollar volume outside the United States was $7,413 billion in 2025 against $3,220 billion inside it, and in the second quarter of 2026 growth was 8.5% in Europe and 13.9% in Latin America against 5.5% in the United States.
    Mastercard second-quarter 2026 results release, Form 8-K exhibit 99.1 - statements, cash flow, balance sheet and operating metrics by region. — Q2 2026 · publ. 30 July 2026 · source ↗
  9. ReportedMastercard's services line, at $13,315 million in 2025, is the larger in absolute terms relative to its network.
    Mastercard Form 10-K for fiscal 2025 - Item 7 MD&A: value-added services and solutions. — FY2025 · publ. 11 February 2026 · source ↗
  10. Third-party estimateThe number that would show Mastercard gaining is its American volume growth outpacing Visa's; in 2025 it was 6.3% against 6.8%.
    The Nilson Report, Mastercard and Visa Cards in the US - 2025: purchase volume $7.028 trillion on Visa and $2.958 trillion on Mastercard. — 2025 · publ. 2026 · source ↗
Sources
Generated September 25, 2026