From Swipe to Zap: Why Square’s 4M Shops Just Got A 0% Bitcoin Button

Why It Matters

By offering near‑free Bitcoin checkout, Block could shift merchant payment mix away from traditional card networks, pressuring card fees and accelerating Bitcoin’s integration into everyday commerce. The concentration of millions of point‑of‑sale transactions through Block’s Lightning infrastructure also centralizes liquidity and pricing influence in a publicly traded firm, impacting the broader Bitcoin ecosystem.

Summary

Block (formerly Square) has enabled Bitcoin payments via the Lightning Network for its roughly 4 million US merchants, letting customers pay with a QR‑code invoice that settles in seconds. The service carries 0% processing fees through 2027, then a flat 1% fee, and offers automatic conversion to dollars, positioning it as a cheaper alternative to card fees of 1.5‑3% and eliminating chargebacks. Block will capture revenue from foreign‑exchange spreads and Bitcoin liquidity, effectively becoming a central clearing hub for mainstream Lightning transactions. Early rollout targets US merchants outside New York, but the move could route billions of dollars of payment volume through Block’s large public Lightning node, reshaping retail Bitcoin liquidity and fee dynamics.