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If you run a small business and need to accept payments over the phone, by mail, or without a card reader, a virtual terminal can help. It lets you securely enter a customer’s payment details through a web browser, giving you a simple way to accept card payments without additional hardware. Whether you’re taking payments remotely or need a backup when your physical terminal is unavailable, a virtual terminal can keep your business running smoothly.

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.

Small business payment processing is how a business accepts, routes, and settles payments. While it’s often treated as a simple setup, the way your payments are structured has a direct impact on your margins. Processing fees can vary widely, pricing models can hide real costs, and the right setup depends on your volume, margins, and growth plans. This guide breaks down how payment processing for small business works, what you’re really paying for, and how to choose a provider that fits your needs. It also covers how to reduce fees, avoid hidden costs, and evaluate the best payment processors.

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.

Vertical payment solutions are designed for those cases, with industry-specific functionality integrated directly into the business. Generic processors optimize for volume across as many business types as possible – that flexibility starts to break down once your operations or compliance requirements get more specific. Finix supports businesses across multiple industries with transparent pricing, flexible payment acceptance, and support for the operational realities that come with managing payments.

Payment processing is what happens between a customer tapping their card and a merchant seeing funds in their account. Every business that accepts electronic payments – whether at a register, through an online checkout, or via recurring billing – relies on payment processing, whether they've thought much about it or not. Understanding what payment processing is and how it works is essential for selecting the right processor for your business. The platform you choose determines how much you’re paying in fees, how secure your payments are, and your capacity to scale profitably.