Fattmerchant Payments shopping cart

Strong And Secure Payments To Power Your Online Business

Sign Up Now

Partner with an industry leader.

We work with Authorize.net to provide our members with the best possible online gateway experience. Their gateway integrates with virtually any e-commerce software or online storefront – plus we do all the heavy lifting to ensure a seamless integration.

Safety and security.

Be confident that your information is secure with Fattmerchant + Authorize.net. In compliance with PCI standards and a host of other security measures, you can rest assured your sensitive data is stored securely.

The Power of Data.

All of our members enjoy access to our robust data analytics platform, meaning more data to help you grow your online business! View data at a glance with our easy-to-navigate analytics dashboard, manage PCI compliance in order to keep you and your customers secure, access our marketplace of additional solutions – and so much more!

Simple To Start. Simple To Use

Enjoy a quick and easy set up with our expert support specialists, and rest easy knowing your payments are being processed through the nation’s leading online gateway.



Keep Your Process On-Site

Your customers can complete your entire purchasing process, from shopping cart to checkout, all while never having to leave your site.

Customize Your Design

You have full control over the design of your shopping cart and checkout process – allowing you to keep your image and brand consistent.

Watch a Video

What Our Members Are Saying
“Using Authorize.net with Fattmerchant has been a no-brainer. Fattmerchant sold me on the price and cost savings, but being able to use a gateway I already enjoyed for my online transactions was amazing to be able to do with the pricing of Fattmerchant. Plus, they’re my first line of defense for customer support, which is a huge step up from having to call directly to Authorize.net.”
– Shawn Seipler, Clean the World

Why thousands of businesses love Fattmerchant

Robust Analytics.
Sign in from anywhere to view data at a glance with our easy-to-navigate analytics dashboard, and gain instant access to detailed batch reports and more to help you grow your business.
PCI Compliance.
Easily manage your business’ PCI compliance and avoid extra fees – as a Fattmerchant member, we help you manage your annual compliance requirements completely free of charge.
Next Day Funding Available.
Next day funding is available for qualified merchants – accept all major cards, and receive deposits as quickly as the next business day.
Awesome Customer Support
With access to 24/7 customer support and a voice-to-the-phone every time you call in, we’re here to help you when you need it!

Take the Next Step with Fattmerchant

Get Started