Square and Stripe are the two dominant payment processors for small to mid-sized businesses in 2026. Both offer transparent, per-transaction pricing with no monthly fees on their base plans. But their strengths diverge sharply depending on whether you sell in person, online, or both.
Online Payment Fees
For online transactions, Square and Stripe charge identical rates: 2.9% + $0.30 per transaction. On a $100 online sale, both processors take $3.20, leaving you with $96.80. There is no fee advantage for either platform on standard e-commerce or card-not-present transactions.
In-Person Payment Fees
Both processors charge 2.6% + $0.10 for in-person card payments. However, the real difference is hardware and setup. Square provides a free contactless card reader to get started. Stripe Terminal requires purchasing a reader ($59 for the BBPOS WisePOS E or $49 for the Stripe Reader M2). For a business just starting to accept in-person payments, Square's free hardware is a meaningful cost advantage.
Where Stripe Wins
Stripe is built for developers and online-first businesses. Its API is widely regarded as the best in the industry, with extensive documentation, libraries for every major programming language, and support for complex payment flows like subscriptions, marketplaces, and usage-based billing. If your business needs custom payment integrations, Stripe is the clear choice.
Stripe also offers ACH Direct Debit at 0.8% (capped at $5) — significantly cheaper than card processing for high-value transactions. Square doesn't offer ACH at comparable rates.
Where Square Wins
Square excels at omnichannel commerce — businesses that sell both in person and online. Its free POS system, inventory management, team scheduling, and customer directory come bundled at no cost. Stripe has no equivalent POS offering. For retail stores, restaurants, service businesses, and market vendors, Square's all-in-one ecosystem is hard to beat.
Square also has a more accessible no-code e-commerce solution (Square Online) that lets non-technical sellers build a store without writing any code. Stripe requires developer resources for any meaningful integration.
For businesses processing under $250,000/year with a mix of in-person and online sales, Square's ecosystem typically provides more value. For developer-heavy or online-only businesses, Stripe's flexibility and API quality make it the better foundation.