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Stax Review: Pros, Cons, Features, and Pricing Explained

Stax (formerly Fattmerchant) is a payment solution for small businesses that helps CFOs simplify payment processing, reduce costs, and gain clearer financial visibility. If you're evaluating payment processors, Stax payments offers a subscription-based model with transparent pricing, integrated analytics, and support for in-person and online payments.

In this review, you'll get a clear look at Stax's features, best and worst use cases, pros and cons, and how its pricing stacks up against other payment solution providers.

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Bradley Clifford
By Bradley Clifford

Bradley Clifford is a Chartered Accountant and the current VP of Finance at Black and White Zebra. With 15+ years of experience spanning full-cycle accounting, FP&A, M&A, and investor relations. Bradley has held senior roles at companies including Stack Overflow—where he supported its growth to a $1.8B acquisition—and Rewind. Bradley is passionate about using finance as a decision-making engine, leveraging technology, scenario planning, and AI-powered automation to transform insights into smarter, faster business strategies.