SHOCKWAVE: Global Antitrust Pressure Hits Payment Networks

May 6, 2026

Britain’s financial regulator has launched a formal investigation into Mastercard, Visa, and PayPal, signaling that even the world’s largest payment networks cannot escape intensifying scrutiny over anti-competitive practices in digital wallets.

Quick Take

The UK Financial Conduct Authority announced a probe into suspected anti-competitive conduct involving PayPal’s digital wallet and card network agreements.
Visa and Mastercard face potential abuse-of-dominance charges under Chapter II of the Competition Act 1998, while all three firms face anti-competitive agreement charges.
This marks another regulatory defeat for payment giants already weakened by recent court losses and EU fines, reflecting a global pattern of antitrust pressure.
The investigation targets how PayPal’s app integrates Visa and Mastercard cards, raising questions about whether exclusive arrangements stifle competition and innovation.

Regulatory Pressure Intensifies on Payment Giants

The FCA’s investigation represents the latest chapter in an escalating regulatory campaign against dominant payment networks. Britain’s financial watchdog is examining whether agreements between PayPal, Visa, and Mastercard restrict or distort competition in UK payment markets. This probe builds on the FCA’s 2024 call for information from major digital wallet providers, signaling the regulator’s determination to prevent “walled gardens” that could lock consumers and merchants into exclusive arrangements. The investigation occurs amid broader global antitrust waves targeting payment ecosystems.

Digital Wallets Under the Microscope

PayPal’s digital wallet, which stores branded Visa and Mastercard cards for online, in-store, and contactless payments, sits at the center of this investigation. The FCA is scrutinizing whether funding and usage arrangements between PayPal and the card networks prevent competitors from accessing similar integration opportunities. With digital wallets growing rapidly—competing with Apple Pay and Google Pay—regulators worry that dominant players could use exclusive partnerships to entrench market power. PayPal operates over 20 million wallets in the UK, making it a significant player in the increasingly competitive digital payments space.

A Pattern of Regulatory Losses

Visa and Mastercard enter this investigation already weakened by recent setbacks. In December 2025, both companies lost a High Court appeal against the Payment Systems Regulator’s overseas card fee cap, a significant defeat that underscored the courts’ willingness to uphold regulatory constraints on network dominance. The EU previously fined Visa €570 million in 2024 for Apple Pay exclusivity arrangements, establishing a precedent that restrictive wallet agreements face serious legal jeopardy. These prior losses suggest regulators worldwide view payment network conduct as a priority enforcement area.

Potential Consequences and Market Impact

If violations are found, the FCA can impose fines up to 10 percent of global turnover—a penalty that could reach billions for these firms. Beyond fines, potential remedies include mandated interoperability, fee reductions, or rules requiring wallet access for competitors. Such outcomes could fragment the dominance Visa and Mastercard currently enjoy, with UK revenue exposure estimated at £10 billion or more. For merchants and consumers, competition-driven outcomes could mean lower fees and greater choice in payment methods, though innovation timelines may face short-term delays.