Affirm Holdings, Inc. vs Block Inc: Strategic Comparison

This in-depth comparison examines Affirm Holdings, Inc. and Block Inc across revenue, market value, business model, competitive positioning, and long-term growth strategy. Whether you are researching Affirm Holdings, Inc. on its own, evaluating Block Inc, or weighing the two companies side by side, the breakdown below highlights where each company leads and where the gap between Affirm Holdings, Inc. and Block Inc is widest.

On the headline numbers, annual revenue is $4.3B (FY2026) for Affirm Holdings, Inc. and $24.2B (FY2025) for Block Inc, while their respective market capitalizations stand at $24.0B and $44.5B. Both Affirm Holdings, Inc. and Block Inc are headquartered in United States. Their local markets and applicable rules may still differ.

Affirm Holdings, Inc.: Founded in 2012, Affirm offers installment-payment options online, in stores, and through Affirm Card. It went public on Nasdaq in January 2021 and has expanded through merchant and platform partnerships, product launches, and acquisitions including Sweep, PayBright, and Returnly. The company is headquartered in San Francisco, California.

Block Inc: Block, formerly Square, started in 2009 with a small white card reader that plugged into a phone's headphone jack and let food trucks, artists and coffee shops take card payments. It now runs Square for sellers, Cash App for 59 million monthly transacting customers, Afterpay for buy now, pay later, and smaller units including the TIDAL music service, the Bitkey bitcoin wallet and Proto mining hardware. Its shares trade on the New York Stock Exchange as XYZ, a ticker adopted in January 2025, and it joined the S&P 500 on July 23, 2025. Co-founder Jack Dorsey, who also co-founded Twitter, has led it since the start. The company is headquartered in Oakland, California (officially distributed). The financial technology powerhouse (formerly Square) was famously founded in San Francisco, California by Twitter co-founder Jack Dorsey to allow small merchants to accept credit cards via a tiny plastic headphone jack plug.

Affirm Holdings, Inc. and Block Inc pursue distinct approaches to generating revenue, and understanding how each company operates is the foundation of any fair comparison between Affirm Holdings, Inc. and Block Inc.

Affirm Holdings, Inc. business model: Affirm earns merchant-network revenue when consumers use its payment options, interest income on interest-bearing loans, card-network revenue, gains when it sells loans to third parties, and servicing income. Some plans carry 0% APR, while interest-bearing loans disclose a fixed repayment schedule. Affirm says it does not charge late or hidden fees.

Block Inc business model: Block runs a two-sided network. On the seller side, Square charges a fee on each card payment (in the U.S. on its free plan, 2.6% plus 15 cents in person and 3.3% plus 30 cents online) and adds paid software, hardware, payroll, banking and Square Loans. On the consumer side, basic Cash App transfers are free; the app earns from Cash App Card interchange, instant transfer fees, Borrow short-term loans, Afterpay pay-in-four plans and the spread on bitcoin sales. Gross profit is the number management steers by: $10.36 billion in 2025, with Cash App contributing $1.83 billion and Square $993 million in the fourth quarter alone. The long-term aim is to connect both sides, so that a Cash App customer pays a Square seller through Cash App Pay, Afterpay or the Neighborhoods local rewards program and Block keeps the economics at both ends.

The durability of a company's moat often decides long-term winners. Here is how the competitive advantages of Affirm Holdings, Inc. stack up against those of Block Inc.

Affirm Holdings, Inc. competitive advantage: Affirm underwrites each transaction individually in real time and offers fixed payment schedules without late fees. Its distribution includes integrations with major commerce platforms and merchants, while its funding model uses warehouse facilities, securitizations, and loan-sale partnerships.

Block Inc competitive advantage: Block's advantage is owning both ends of many small transactions. Cash App's peer-to-peer network spreads by itself, since receiving money means downloading the app, and every added product (the Cash App Card, direct deposit, Borrow, Afterpay) raises revenue per customer without new acquisition cost. Square sellers run payments, staff, inventory and loans on one system, so switching costs grow with each product they adopt. Square Financial Services, a Utah industrial bank that opened in March 2021, lets Block originate Square Loans and Cash App Borrow loans on its own charter, which few fintechs have.

Future prospects matter as much as current results. The growth strategies below explain how Affirm Holdings, Inc. and Block Inc each plan to expand from here.

Affirm Holdings, Inc. growth strategy: Affirm's disclosed growth priorities include increasing transaction frequency, expanding Affirm Card, adding merchants and platform integrations, entering additional markets, and maintaining diverse funding sources for originated loans.

Block Inc growth strategy: Block's 2026 plan has four parts. Square is selling to larger and international sellers through a field sales team and independent sales organization partners; international GPV grew 28% in the second quarter of 2026. Cash App wants to be the main bank account for people with several income sources, using direct deposit and Cash App Green rewards status; primary banking actives reached 9.4 million in June 2026, up 17%. Lending is expanding through Borrow, Afterpay and Square Loans, all originated more cheaply now that Block's own bank handles Borrow. And Neighborhoods links Square sellers with nearby Cash App customers; it passed $1 billion of annualized seller GPV in June 2026. Bitcoin remains a long-term bet through Bitkey and Proto mining rigs, which began shipping in late 2025.

A closer look at the financial trajectory of Affirm Holdings, Inc. and Block Inc rounds out the comparison.

Affirm Holdings, Inc.: Affirm's results depend on transaction volume, credit performance, funding costs, and loan-sale markets. FY2026 revenue was $4.261 billion on $50.2 billion of GMV. Net income was $1.930 billion, but included a $1.45 billion income-tax benefit from releasing a valuation allowance on domestic deferred tax assets.

Block Inc: Revenue was nearly flat in 2025, $24.19 billion against $24.12 billion, because bitcoin sales fell from $10.36 billion to $8.50 billion. Gross profit, which strips out the cost of the bitcoin Block resells, rose 17% to $10.36 billion and adjusted operating income rose 30% to about $2.3 billion. Net income attributable to common stockholders was $1.31 billion, down from $2.90 billion in 2024, a year lifted by a large fourth-quarter tax benefit. 2026 opened with a $308.7 million first-quarter net loss as layoff costs landed (about $495 million of restructuring charges across the first half), then second-quarter gross profit grew 25% to $3.17 billion with a record 27% adjusted operating margin. Block now guides to $12.51 billion of 2026 gross profit and $3.47 billion of adjusted operating income. It bought back $2.3 billion of stock in 2025, had $4.6 billion of repurchase authorization left at June 30, 2026, and pays no dividend. Block, Inc. maintains a formidable presence in the fintech space, with a market valuation generally exceeding $40 billion.