Square Begins Automatic Bitcoin Payment Rollout to Millions of U.S. Merchants

Square bitcoin payments just got a whole lot harder to avoid. Block's payments platform quietly shifted from asking merchants to turn bitcoin on — to turning it on for them. As of today, eligible U.S. sellers have bitcoin acceptance activated at checkout by default, no manual setup required. Miles Suter, Square's product lead, flagged the change on X, framing it as a step toward bitcoin functioning as everyday money across the company's vast merchant network.

From Opt-In to Default: What Actually Changed

Square first started down this road in October 2025 — that's when the company launched its 'Square Bitcoin' initiative, giving small businesses the option to accept bitcoin at checkout alongside Lightning Network support, instant settlement, and zero processing fees locked in through 2027. A wider rollout followed in November 2025, but the feature stayed voluntary. Merchants had to go into their settings and flip the switch themselves.

Today, automatically enabling bitcoin payments for eligible U.S. sellers is no longer a choice merchants have to make — it's the default they have to undo. That's a meaningful shift. Instead of asking millions of small business owners to adopt a new payment rail, Block is betting most won't bother opting out. Classic distribution play.

The mechanics are designed to be invisible to merchants. Customers can pay in Bitcoin at the register; the seller's register still settles in USD. Lightning Network handles the conversion in the background, targeting near-instant transactions with no volatility exposure on the merchant side. A café owner in Austin doesn't need to care how Bitcoin works. That's kind of the point.

Is This Actually Adoption — or Just a Default Setting?

Here's the honest question nobody's really asking: if merchants can opt out, and most probably won't even notice the feature is live, does this count as bitcoin adoption? Suter would say yes — and the scale argument is real. Square's merchant network spans millions of U.S. sellers. Even passive availability at that scale puts bitcoin in checkout flows that never touched crypto before.

For context, Square first unveiled its "Square Bitcoin" initiative in October 2025 as an opt-in experiment with a relatively small early audience. The jump to automatic activation across the full eligible base is a different category of bet. Block is essentially using its existing payment infrastructure as a bitcoin distribution channel — no marketing required, no customer education needed.

The move doesn't exist in isolation either. Earlier this year, Cash App announced major upgrades to its Bitcoin offering, including zero-spread pricing on buys, reduced fees, and expanded withdrawal limits — up to $10,000 daily and $25,000 weekly for eligible users. ACH and wire transfer funding rails were added too. Block is quietly building one of the most accessible Bitcoin stacks in U.S. fintech, and the Square default rollout is the merchant-side piece of that puzzle.

Merchants who want out can adjust preferences in their Square dashboard. But the burden has shifted — and in product design, whoever carries the friction usually loses.