Block’s Cash App is quietly flipping a switch this week that lets its 15 million active users send and receive payments in USDC, the dollar-pegged stablecoin. The move plugs a stablecoin directly into one of the most popular peer-to-peer payment apps in the U.S., giving users a way to transact in crypto without the price swings that have kept bitcoin and ether mostly in the investment bucket.
What changes for Cash App users
Starting this week, anyone with a Cash App account can send USDC to another Cash App user. The transaction shows up as a dollar amount but settles in the stablecoin. That means no volatility on the sender's or receiver's end — one USDC stays at $1. Recipients can hold the USDC in their Cash App balance, send it to someone else, or convert it back to regular dollars within the app. The company hasn't said whether external transfers to other wallets or exchanges will be supported at launch.
Why a stablecoin, not a volatile one
USDC is designed to mirror the U.S. dollar. Every token in circulation is backed by cash and short-term Treasuries held in reserve. For a payment app used for everyday transactions — splitting dinner bills, paying rent, sending money to family — that stability matters. A stablecoin removes the risk of the dollar value changing between the moment a user sends it and the moment the recipient cashes out. Cash App already lets users buy and sell bitcoin, but that's a speculative asset. USDC turns the app into a straight-up digital dollar pipeline.
The 15 million figure
Block reports that Cash App has roughly 15 million monthly transacting users. Not all of them will use the new feature, but the addressable base is large compared to standalone crypto wallets. By embedding USDC directly into an app people already use for banking and payments, Block skips the friction of asking users to download a separate wallet, fund it, and learn a new interface. The rollout is happening gradually over the course of this week, the company confirmed.
What's at stake for Block
Block has been leaning into crypto since it rebranded from Square in 2021. The company holds bitcoin on its balance sheet and runs a bitcoin-focused hardware wallet. Adding USDC payments gives it a foothold in the stablecoin ecosystem, which is increasingly used for cross-border remittances, merchant settlements, and DeFi. But it also raises questions about compliance: stablecoin transfers are traceable on the blockchain, and regulators have been tightening rules around know-your-customer and anti-money-laundering checks. Cash App already requires identity verification, so the new payment method likely falls under existing controls.
The feature goes live this week. Users who don't see it immediately should check for an app update. Block hasn't announced whether it will extend the same functionality to its Square point-of-sale merchants, but the infrastructure is now in place.
