Credit card processing for small business: The ultimate guide.

Credit card processing for small business: The ultimate guide.

By: Jereme Sanborn
Posted: March 20, 2019


Sales keep a small business running, and customers expect flexible ways to pay. 

This guide explains how credit card processing for small businesses works, what you need to get set up, what fees to expect, how to choose hardware, and how to evaluate a provider.

What you will learn in this guide

  • What credit card processing is and the key parties involved
  • How a card payment moves from approval to payout
  • What small businesses need, including online, mobile, and in-person requirements
  • Common fee types and how to compare offers using total cost and effective rate
  • How to choose the right hardware for your business model
  • How to choose a processing partner and what to ask before you sign

What is credit card processing

Credit card processing is the set of tools and steps that lets your business accept card payments and receive funds in your bank account. 

It includes the checkout experience your customer uses, the secure transmission of payment data, and the movement of money between banks.

Here are the core parties involved:

  • Your business and checkout system: your POS, card reader, or online shopping cart, where the payment starts
  • Payment gateway: securely transmits payment data from your checkout to the processor
  • Payment processor: routes transactions through card networks and coordinates approval and settlement
  • Card networks: connect banks and set operating rules
  • Issuing bank: your customer’s bank that approves or declines the transaction
  • Acquiring bank: the bank that receives funds on behalf of your merchant account

In simple terms, your customer pays, the transaction is approved, the payment is settled, and then funds are deposited into your business account minus processing fees.

How does credit card processing for small businesses work?

Card payments follow a similar path whether they happen in person, online, or by phone. 

The details vary by channel, but the flow from authorization to settlement stays consistent.

Here is the typical six-step flow:

  1. The customer pays in person, online, or by phone
  2. Your POS or checkout encrypts the card data
  3. The gateway or processor sends the transaction for authorization
  4. The issuing bank approves or declines
  5. Approved transactions are batched for settlement
  6. Funds are deposited to your merchant account based on your funding schedule

In person payments typically use an EMV chip reader or contactless tap. 

Online payments typically use a hosted checkout page or an integrated gateway. 

Phone orders typically use keyed entry through a virtual terminal.

What small businesses need

The best processing setup depends on where you sell and how customers prefer to pay. 

Before you compare providers, define your requirements so you can evaluate offers on an apples-to-apples basis.

Start with this checklist:

  • Where you sell: in person, online, mobile, or phone orders
  • Your average ticket size and monthly volume
  • Payment types you want to support: credit, debit, contactless, and digital wallets when applicable
  • Billing needs: invoicing, recurring billing, subscriptions, or payment links
  • Integrations: POS, ecommerce platform, accounting software, and reporting needs
  • Security and risk tools: PCI support, fraud tools, and dispute management guidance

Security and EMV

For most in-person small businesses, EMV-capable equipment is a baseline requirement. Chip transactions reduce certain fraud risks compared with magnetic stripe swipes and can lower exposure when disputes occur.

Online, a secure checkout experience matters just as much. Hosted checkout pages can reduce how much sensitive card data touches your systems, which can simplify operations.

Fees and how to compare offers

Processing fees can meaningfully affect your margins, especially when volume rises. 

The most reliable way to compare providers is to evaluate total cost based on how you actually sell.

Common fee categories include:

  • Percentage and per-transaction fees on each sale
  • Monthly or statement fees, when applicable
  • Chargeback and dispute fees
  • Refund and retrieval fees
  • Hardware costs, including replacements
  • Gateway or software fees for online payments, when applicable

Ask each provider to price your account using your real numbers, including monthly volume, average ticket size, and your channel mix. 

Then compare using an effective rate: 

Effective rate = total fees ÷ total processed volume

This approach makes it easier to spot hidden costs that do not show up in a headline rate.

Avoid surprises before you sign

Confirm contract terms, cancellation policies, equipment terms, and any fees tied to minimums. Make sure the funding schedule is clear, including what can slow deposits during higher-risk periods.

Hardware for credit card processing

Hardware choices should match your workflow, your sales environment, and the experience you want customers to have at checkout. The right device can speed up lines, reduce mistakes, and support more payment types.

Hardware by use case

Must-have hardware features

Look for these capabilities when you compare devices:

  • EMV chip acceptance
  • Contactless support
  • Receipt options and reporting
  • Connectivity options such as ethernet, Wi-Fi, and cellular when needed
  • Battery life and portability for mobile use cases
  • Store-and-forward support when appropriate for your environment

Online and omnichannel processing

Many small businesses accept payments in more than one place, such as in store, online, and by phone. An omnichannel setup can reduce operational complexity when reporting, settlement, and support stay consistent across channels.

Online payments usually rely on three parts:

  • A digital storefront or checkout experience, such as a website
  • A payment gateway that securely transmits payment data
  • A processor that routes transactions and manages settlement

For phone orders, a virtual terminal can support keyed entry workflows. If you plan to offer a cash discount program, confirm the operational requirements and constraints before launch.

How to choose the right partner

A provider should do more than run transactions. The right payment processing provider supports onboarding, helps you choose a practical setup, and gives you tools to understand costs as your business grows.

Use this checklist when evaluating a processing partner:

  • Transparent pricing with clear fee categories
  • Funding speed and clear deposit timing expectations
  • Hardware options that match how you sell today and how you plan to grow
  • Integrations that fit your POS, ecommerce platform, and accounting tools
  • Security and risk support, including PCI guidance, encryption, fraud tools, and dispute support
  • Support that includes onboarding, training, and a clear path to help when issues arise

If funding speed is important for your business model, ask what options exist and what conditions apply. 

FAQs

What equipment do I need to start accepting credit cards?

At minimum, you need a way to accept payments in your primary channel. For in-person sales, that is usually an EMV-capable terminal or POS. 

For online sales, it is a secure checkout plus a gateway and processor. 

For phone orders, it is often a virtual terminal.

How do online credit card payments work?

Online payments typically flow from your checkout to a gateway and processor for authorization. They are then settled and deposited based on your funding schedule.

What is a payment gateway?

A payment gateway securely transmits payment information from your online checkout or POS to the processor for authorization and settlement.

What is a virtual terminal?

A virtual terminal is a secure web-based tool that allows you to key in card information for phone orders or certain invoice-style payments when appropriate.

How long does it take to get paid after a card transaction?

Deposit timing depends on your provider and your funding options. Ask whether next day or same-day funding is available, and ask what factors can affect timing.

What fees should I expect with credit card processing?

Expect a mix of per-transaction fees, plus potential monthly, chargeback, refund, hardware, or gateway fees. Compare providers using total cost and effective rate.

How do chargebacks work?

A chargeback happens when a cardholder disputes a transaction with their bank. You typically respond with documentation to support the sale. Ask what dispute tools and guidance your provider offers.

What is PCI DSS and why does it matter?

PCI DSS is a security standard for handling card data. Providers can offer tools and guidance that help reduce exposure to sensitive card information.

Can I accept Apple Pay or Google Pay?

Many modern terminals and online checkouts support digital wallets. Confirm supported payment types before you choose hardware or your online checkout method.

How do I switch from my current processor?

Switching typically involves updating hardware or integrations, migrating account settings, then testing before go-live. Ask what onboarding support is included.

North is a leading financial technology company that builds innovative, frictionless end-to-end payment solutions designed to simplify and grow businesses of all sizes. From the front door, to the back office, the developer world, and partnerships that expand the payments landscape, North offers proactive, comprehensive merchant services, in-house processing, and more.