Retail Credit Card Processing Services

● Low processing fees ● Minimal paperwork ● Outstanding service

Retailers experience a high volume of customer foot traffic daily. Every one of these customers expects to be able to make payments quickly while using their preferred payment method.

Meanwhile, business owners want to be able to access real-time data to track how their company is performing on any given day. Not all retail merchant services providers are able to offer credit card processing products designed with both the customer and business in mind.

At Group ISO, we build payment solutions with the needs of our customers in mind. When you open a retail merchant account with us, we collaborate with you to create a secure and user-friendly payment solution to help your business achieve its strategic goals.

Cashier accepting a credit card

Competitive rates

Transparent and competitive rates with the lowest interchange qualifications

We Accept them all

All major credit cards, including Visa, MasterCard, and Discover

Hassle-Free Approvals

Minimal paperwork required. No collateral or guarantees needed

PCI Portal

Free PCI compliance for your retail merchant account through our online portal

Robust POS Equipment

Huge selection of credit card terminals and point-of-sale solutions

Powerful Integrations

Integration with a wide range of ERP and accounting solutions

Ultra-Low Processing Fees

We’ve been in business for over 20 years. Our relationships in the industry and excellent payment solutions framework mean we’re able to offer you some of the lowest-ever credit card processing fees for your retail merchant account.

Hear From Our Customers Directly

We take pride in the level of service and convenience we’re able to offer our customers. Read about some of their experiences with us.

Robust and Secure Retail Credit Card Processing Solutions

Every Group ISO solution is PCI-certified secure and encrypted to offer you peace of mind in a world where data theft is a constant source of concern for business owners.

After a quick setup process, you’ll be able to accept credit card payments from all major providers, such as MasterCard, Discovery, and Visa. Get hassle-free approvals, real-time reporting, custom loyalty and gift cards, and more benefits with our retail credit card processing services.

If that’s not enough, all of our products are backed by our in-house support team with 24/7 live support. And, best of all, Group ISO solutions are competitively priced to ensure businesses of all sizes can access industry-leading payment solutions.

Take them all

Accept all major credit cards at competitive rates

Equipment for all your needs

Huge selection of credit card terminals and Point of Sales solutions


We sync with your website and ERP! 

Retail cashier accepting credit card for processing payment



We have a variety of terminals to fit your needs, from standard countertop credit card machines, to full Point of Sale systems.
Cashier offering QR code for customer to scan for mobile payment

Fully integrated credit card processing software for retail

Our payment acceptance solutions can easily integrate with your company’s software ecosystem. They’re compatible with all major ERP and CRM systems to offer you access to key financial metrics at any hour of the day. Most importantly, when you integrate with ERP systems, you will witness improved cash flow as transactions are seamlessly recorded in your company ledger. Book a consultation with Group ISO today to learn more!

Apply in Three Easy Steps

Tell us about your business
How long have you been in business? What kind of products or services do you intend to sell?

Tell us how you plan to accept payments
Do you plan to sell online or accept in-store payments? What is the volume of transactions you expect to handle?

Choose a Payment Solution
Our consultants will help you choose a payment processing solution best suited to your business activity.

Only the best for our merchants


We partner with the world’s most popular brands and innovative technologies.


Ready to get started

U.S. Live Agents are Here to Chat


What is a retail credit card processing service?

It’s a company or provider that processes the digits and codes on a credit card to facilitate a transaction in person or online. Depending on the type of transaction, the provider will charge you a percentage of the transaction amount or that, plus a small flat fee for processing the transaction.

Does my business qualify for a retail merchant account?

We accept all kinds of businesses for retail credit card processing services at Group ISO. Everyone from apparel retailers to electronics sellers, grocery stores, restaurants, car dealerships, hospitality outlets, and more. We offer approvals in as little as 24 hours and minimal paperwork, even for businesses classified as ‘high risk.’ If you’re not sure whether you qualify, simply reach out to us and our consultants will help you!

What is ISO credit card processing for retail businesses?

An independent sales organization (ISO) is an intermediary between the merchant and the banks that eventually accept the payment. Group ISO has been in business for over 20 years, during which we’ve developed solutions and established industry relationships to bring you some of the best payment technologies and processing terms in the industry.

What is PCI compliance for retail credit card processing?

Payment card industry (PCI) compliance is the process of complying with the operational and technical standards set out by the PCI Security Standards Council to protect credit card data provided by cardholders. Any retailer or business wishing to set up a merchant account and accept credit card payments must comply with these standards. At Group ISO, you can complete this compliance for free through our online portal.

Copyright © 2023 Group ISO. Group ISO, Inc is a registered ISO of Commercial Bank of California Irvine, CA. All trademarks and service marks used on this website are property of their respective owners
Skip to content