Overview
- Mastercard announced on June 3, 2026 that it will let issuers and acquirers settle card transactions using six regulated dollar stablecoins and new intraday, weekend and holiday settlement windows.
- The initial stablecoins named are USDC, PYUSD, USDG, USDP, RLUSD and SoFiUSD and they will be usable across eight blockchains including Ethereum, Solana, Polygon, Base, Arbitrum, XRPL, Canton and Tempo.
- ARQ, CBW Bank, Cross River, Lead Bank and Nuvei are listed as early participants with first deployments focused on the United States and Latin America.
- Mastercard says the on-chain option runs alongside existing fiat settlement and keeps current operational controls, security checks, fraud protections and dispute processes in place.
- The rollout follows regulatory steps such as MTS US obtaining a New York BitLicense and Mastercard’s infrastructure expansion moves like the BVNK deal, which together aim to make always-on, on-chain settlement compliant and scalable.