Cash App just became the biggest on-ramp for stablecoin payments that most people have ever had access to. Block’s popular payments platform has started rolling out USDC stablecoin functionality to roughly 15 million users, about a quarter of its nearly 60 million total user base, with plans to reach everyone by the end of this week.
That makes this one of the largest integrations of a regulated, dollar-backed stablecoin into a mainstream consumer finance app. Period. The kind of move that makes you wonder why it took this long.
What the rollout actually looks like
The phased approach means roughly a quarter of Cash App’s user base already has access, with the remaining 45 million or so users expected to come online within days. Cash App counts about 57 million monthly active users, primarily across the US and UK.
The integration leverages the Solana network, a choice that prioritizes high throughput and low transaction fees. For a platform that processes billions in payments, picking a chain that won’t choke under volume is less a preference and more a survival requirement.











