Resource Hub: Guides

Bank account verification is a critical step in launching and scaling payments — but it’s often where friction begins. Delays in onboarding, failed payouts, and increased compliance overhead can all stem from slow or unreliable verification workflows. At the same time, as more businesses adopt bank payments to reduce costs and improve margins, the need for fast, secure verification becomes even more important. Finix addresses this by embedding bank account authentication and identity verification directly into Finix through a partnership with Plaid.

If you’re investigating the best payment processors for SaaS, you need to understand which model fits your goals and structure.  There’s a major difference between simply accepting payments and embedding them as a revenue layer. If you’re a SaaS platform, marketplace, or vertical software company, you're not just choosing how to accept payments — you're choosing how payments will work inside your product and business model. That distinction changes the evaluation entirely, and choosing the wrong model can limit your take rate, reduce control over sub-merchant accounts, and create compliance dependencies that become harder to change as your platform grows. We’ve assessed each option across the six dimensions that matter at the infrastructure level: revenue model, compliance and liability ownership, sub-merchant management, token portability and ownership, infrastructure control, and cost at scale.

Payment processing fees are an unavoidable cost of accepting digital payments, but it’s not always clear how these costs are structured. Behind each card transaction are several layers of fees charged by banks, card networks, and payment providers. Understanding how payment processing fees work helps businesses evaluate pricing models, identify hidden fees, and make better decisions as payment volume grows. This guide explains how payment processing fees work, how pricing models differ, and how businesses can reduce and optimize their payment costs.

If you’re investigating the best payment processors for your business, you’ve likely already seen dozens of identical lists saying the same thing. They cover the providers and their rates, but tell you almost nothing about which processor is best for your business. What these guides miss is that the fee you see advertised is rarely the fee you pay. The processor you choose doesn't just determine your transaction costs - it decides what happens when a payment is disputed, whether your funds are stable as you grow, and how difficult it becomes to switch if the relationship stops working. This guide covers five of the best payment processors for merchants in 2026 - Finix, Stripe, Adyen, Helcim, and Square - evaluated across the criteria that actually matter for merchants. Where each one fits, where it doesn't, and what to look for before you sign anything.

The traditional point of sale was designed for a world where customers came to you. But as businesses grow, flexibility is critical to meeting customers where they are. Commerce doesn’t just happen behind a retail counter anymore—it happens at pop-up shops, on job sites, in a client’s living room, or on an event floor. While business has become increasingly mobile, managing multiple payment providers and reconciling separate dashboards just to take work on the road is an unnecessary, costly hassle. Businesses want to stay within an ecosystem they already trust, without having to compromise on where or how they sell. With the launch of the Finix Checkout iOS App and mobile card reader, the enterprise-grade payments solutions businesses relied on in-store and online now fit inside a pocket.

Embedded payments let SaaS platforms process transactions natively within their software instead of redirecting users to third-party payment providers. Rather than bolting on a separate checkout experience, the payment flow becomes part of the product itself — from merchant onboarding to settlement. For vertical SaaS companies serving industries like healthcare, restaurants, or field services, this matters because payments sit at the center of the workflows they already manage. Embedding payments means owning more of that workflow, creating stickier products, and unlocking a new revenue stream tied directly to transaction volume. This guide covers how embedded payments work, why they've become a strategic priority for SaaS platforms, and what to consider when choosing an approach.