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A client payment portal gives your clients one secure place to see what they owe, review what they’ve already paid, and make a payment without waiting for a new link. This guide explains what a portal includes, when a simple payment link may be enough, and what setup involves. It also looks at how a payment processor like Finix can support the payment experience behind your portal.

Franchise merchant services help franchisors and franchisees accept payments while managing the added complexity of a multi-unit franchise network. Unlike a standard setup designed for one business, they can support separate merchant accounts, centralized reporting, consistent fraud controls, and standardized onboarding across multiple locations. This guide explains how franchise payment processing works, how different merchant account structures work, and what each side of a franchise relationship should look for when choosing a provider.

Supplement brands sell in a category most banks classify as high risk. That makes choosing a payment gateway harder than it looks, because the gateway is only half of what you need. You also need a merchant account willing to approve you. This guide compares five options for supplement and nutraceutical sellers, and explains the difference between a gateway-only product and a provider that supports the full picture.

Supplement sellers regularly get declined by mainstream payment providers, but struggle to figure out why. A nutraceutical merchant account is the route most end up taking, and approval depends on paperwork and marketing review rather than credit alone.  This guide is for supplement and wellness businesses applying for the first time or reapplying after a decline. Finix processes payments for nutraceutical and supplement businesses across online and in-person sales.

Choosing the right payment processor can significantly affect your payment costs, cash flow, customer experience, and ability to grow. This guide compares five of the best payment processors for small businesses in 2026, including Finix, Square, Stripe, Helcim, and PayPal, and explains which option is best suited to different stages of growth.

Many guides on how small businesses can accept payments assume you've already invested in a point of sale (POS) system, hired a developer, or built an ecommerce website. For many founders, freelancers, and service businesses, that's simply not the case. If you're starting from scratch or looking for a simpler way to get paid, it helps to first understand small business payment processing and the different ways businesses can accept payments. This guide covers four practical ways to start accepting payments, from taking card payments over the phone to sending payment links and creating an online checkout, so you can choose the option that best fits your business.