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Block makes money by selling card-reading devices and payment software to businesses, and by running the Cash App for everyday people to send, spend, and invest money.
Block is a financial technology company built on two big engines. One is Square, a set of tools that lets small businesses take card payments, run a cash register, manage inventory, and borrow money. The other is Cash App, a consumer app where people send money to friends, get paid, spend with a debit card, and buy or sell bitcoin and stocks. The two halves serve very different customers — merchants on one side, everyday people on the other — but they share the same plumbing for moving money.
Here is the basic problem Square solves. A food truck or a hair salon wants to accept cards but does not want to sign a scary contract with a traditional payment processor. Square mails them a small white reader that plugs into a phone, charges a simple flat fee per swipe, and lets them start selling the same day. That ease is the hook. Once a merchant is on Square, the company sells them more: software for payroll, loans through Square Capital, and online store tools. Block takes a small cut of each payment and earns subscription fees for the software, so it makes more money as its merchants grow. Cash App is the other story, and it is the one that has driven most of Block's growth. What started as a way to split a dinner bill now handles direct deposits, a debit card, and investing. Cash App makes money in several ways: instant deposit fees, a share of card swipe fees when customers spend, bitcoin trading spreads, and interest on customer balances. Its rivals are big banks and other peer-to-peer apps, and its edge is speed and simplicity, especially for younger and underbanked customers.
Block has had a messy side too. It leaned hard into bitcoin, holding it on its balance sheet and building mining and hardware businesses around it. Those bets have been volatile and, at times, a drag on profits. The company is also under pressure from regulators and has faced scrutiny over fraud and compliance on Cash App. In recent years, management has focused on cutting costs and running a leaner operation after a period of fast expansion and acquisitions. The core question for investors is simple: can Square keep winning small merchants and can Cash App keep growing profitably, without the bitcoin bets and cost bloat eating the gains?
Saved answer · last researched 28 Oct 2026