Stax Review 2023

If you have decent sales volume, Stax may be the most cost-effective credit card processing company out there. And as a plus, you may get to keep your current POS system.
Best for High Volume Merchants
Stax by Fattmerchant
4.3 out of 5 stars
4.3
Starts at
$99.00/month
  • pro
    Interchange-only pricing
  • pro
    Many POS integrations
  • pro
    Customizable API
  • con
    High monthly fee

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Data effective 12/6/22. At publishing time, pricing is current but subject to change. Offers may not be available in all areas.

Stax (formerly Fattmerchant) is a cheap credit card processing solution with a strong reputation. We combed through hundreds of user reviews to make sure Stax wasn’t pulling a fast one with its prices, and almost every single small-business reviewer said they saved money on processing fees using Stax. 

Stax is a relatively new company, arriving on the scene in 2014. Its number-one selling point has always been its prices, but its digital payment processing platform, point-of-sale integrations, and customizable application programming interface (API) payment portal all add much-needed value to small-business processing needs.

Stax pricing

Stax has three pricing plans based on your yearly sales volume.

PlanGrowthProUltimate
Monthly fee$99.00$159.00$199.00
Swiped payment feeInterchange onlyInterchange onlyInterchange only
Keyed payment feeInterchange onlyInterchange onlyInterchange only
–

Data effective 12/6/22. At publishing time, pricing is current but subject to change. Offers may not be available in all areas.

Pricetag
Interchange only pricing

Keep in mind that you’ll only be paying interchange fees with Stax. Almost all other processors will add an additional per-transaction fee on top of the interchange fees charged by credit card companies, but Stax doesn't.

That said, interchange fees vary based on multiple business factors—location of purchase, amount of purchase, and more—so you'll have a little bit of a tricky time calculating the initial per-transaction costs of switching to Stax unless you're familiar with the interchange rates for your business.

When it comes to transactions, Stax only charges interchange fees. This is the lowest processing rate we’ve been able to find, meaning you’ll be spending less money per transaction than anywhere else out there. 

The most prohibitive aspect of Stax pricing model is its expensive monthly fee. Most credit card processing companies don’t charge nearly as hefty a sum as Stax. Stax has a high monthly fee by design. It's services are intended to be used by businesses with high monthly sales volumes. For those businesses, Stax is hard to beat.

Stax also requires a three-year contract. Luckily, it doesn’t penalize you for canceling before the expiration of the contract. You can cancel any time at no extra cost. Stax only requires that you give 30 days’ notice before canceling.

Compare Stax to top competitors

Brand
Processing fees
Monthly fees
Free mobile reader
Inventory management
Accounting integrations
Employee management
Get started
$99.00Interchange only
Icon No  DarkNo
Icon Yes  DarkYes
Icon Yes  DarkYes
Icon Yes  DarkYes
2.9% + $0.30$0.00
Icon No  DarkNo
Icon Yes  DarkYes
Icon Yes  DarkYes
Icon Yes  DarkYes
2.6% + $0.10$0.00
Icon Yes  DarkYes
Icon Yes  DarkYes
Icon Yes  DarkYes
Icon Yes  DarkYes
Interchange + $0.07$99.00
Icon No  DarkNo
Icon Yes  DarkYes
Icon Yes  DarkYes
Icon Yes  DarkYes
Interchange + 0.15% + $0.07$10.00
Icon Yes  DarkYes
Icon Yes  DarkYes
Icon Yes  DarkYes
Icon Yes  DarkYes

Data effective 12/6/22. At publishing time, pricing is current but subject to change. Offers may not be available in all areas.

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Stax key features

Flat-rate processing

Some processing companies like to tack on hidden fees to nickel-and-dime their clients. After reviewing Stax's business practices, we can safely say that it has a good track record of transparent pricing and fees. In fact, it has no hidden fees:

  • No batch fees
  • No cancellation fees
  • No PCI compliance fees
  • No statement fees

What you agree to pay is what you end up paying.

Cloud payment system

Stax offers Dejavoo terminals. You’ll have to buy this terminal outright, but once you’ve made the purchase, you own the terminal, meaning you’ll get to keep it if you ever change processors. Comparatively, many companies charge a rental fee for their terminals and then request them back if you ever switch processors.

However, there’s no terminal pricing information on Stax’s website, so we can’t make a judgment call as to whether the terminal is a good deal. But Stax also offers mobile payment terminals that you can attach to your phone.

Terminal payment acceptance

Fattmerchant offers Dejavoo terminals. You’ll have to buy this terminal outright, but once you’ve made the purchase, you own the terminal, meaning you’ll get to keep it if you ever change processors. Comparatively, many companies charge a rental fee for their terminals and then request them back if you ever switch processors.

However, there’s no terminal pricing information on Fattmerchant’s website, so we can’t make a judgment call as to whether the terminal is a good deal. But Fattmerchant also offers mobile payment terminals that you can attach to your phone.

Best Credit Card Processing for Small Businesses
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4.3
Payment Depot
Best pricing plans
4.8 out of 5 stars
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Stax
Best point-of-sale integration
4.3 out of 5 stars
4.3
National Processing
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4.5 out of 5 stars
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Stripe
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Learn more about our top brands.

Customizable online API

Do you need an online terminal for your website? Stax has an API that you can integrate into your website with a custom flow so your payment experience is tailored to your customers. 

The API can be used for mobile apps, websites, and software and hardware solutions, allowing you the freedom to add payment processing functionality wherever you need it. The API also comes with customer management, inventory tracking, invoicing, and recurring billing features.

Info
What is an API?
API stands for application programming interface. APIs are what programmers use to connect apps to websites. Payment processing APIs allow your programmer to connect a payment processor to your website. Using an API to add a payment processor to your website will require programming experience.

Analytics

Stax’s Omni software serves as both a way to accept keyed-in payments and a way to run analytic reports based on your transaction data. These reports can help you see the strengths and weaknesses of your sales process, guiding you toward data-supported solutions.

Point-of-sale integration

Stax payment processing integrates with 90% of third-party point-of-sale systems, including some of the most popular systems in the industry:

  • Aloha
  • Micros
  • Revel
  • Vend
  • ShopKeep

Point-of-sale systems are useful because they can provide inventory management, cash drawers, accounting integration, and customer management features.

Is Stax right for me?

Stax is a great solution for any business owner who wants to save money on processing fees and has a solid sales volume every month. Luckily, those savings come bundled with a high-quality offering. Stax’s payment processing tools are smartly designed, easy to use, and tailored to the needs of the modern business.

Why Stax may not be right for you

Stax is not good for businesses that only need to process a credit card once in a while. You have to pay the expensive monthly fee whether or not you process a single payment in a given month. So if your processing needs are more sporadic, you may want to stick with a pay-as-you-go solution like Square.

Additionally, Stax may not be good for businesses looking for a one-stop-shop solution. Stax is a payment processing solution that offers point-of-sale integrations, but not many point-of-sale features. This means you’ll end up paying for a point-of-sale system and a payment processor if you need those additional features. 

Square, on the other hand, is both a payment processor and a point-of-sale system that gives you additional features for a flat per-transaction rate. It may be a better option for businesses looking for a more all-in-one solution.

The takeaway

Stax is a great credit card processor for businesses that want to save money on processing fees. You’ll be able to take payments online, over the phone, on the go, and in person using Stax’s terminals and payment platform. 

But Stax’s expensive monthly fee means your business will have to be doing a reasonable amount of processing volume every month to save money. So if your business is already doing a lot of processing every month, there’s no cheaper processing solution than Stax.

If Stax doesn’t quite fit your bill of wanted features and functionalities, be sure to check out our other top payment processing recommendations.

Methodology

We took a detailed look at Stax, analyzing its features, pricing structure, and reliability. We compared it to other top brands in the processing sphere looking for specific features that set it apart from its competitors. We also consulted hundreds of user reviews and expert opinions. 

Disclaimer

At Business.org, our research is meant to offer general product and service recommendations. We don't guarantee that our suggestions will work best for each individual or business, so consider your unique needs when choosing products and services.

Andrew Mosteller
Written by
Andrew Mosteller
For four years, Andrew has been writing copy to help business owners expand, manage, and advertise their unique brands. His upbringing in an entrepreneurial family nurtured a passion for small business at a young age. Andrew’s father, an equity fund manager, taught him the ins and outs of investment financing and owning and operating a successful business. Now he brings his expertise and experience to entrepreneurs as a regular contributor on Business.org.
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