Pros
- Allows merchants to pass credit card processing fees to customers
- Month-to-month contracts with no ETF
- Affordable monthly pricing
- 24/7 customer service
Cons
- Not legal in all states
- Doesn’t disclose all fees on website
- Not a full POS
What Is CardX by Stax?
Owned by Stax, CardX is a fully compliant surcharging solution allowing businesses to pass credit card processing fees to customers, thereby reducing the business’s costs associated with accepting credit cards.
Businesses can use CardX to take 0% fee credit card payments in-person, online, or via a virtual terminal. Businesses in Connecticut and Maine cannot legally use credit card surcharging solutions such as CardX.
CardX Services & Features
CardX is a payment processor that lets businesses accept credit cards without having to pay the usual interchange fees and processor markup. Instead, the customer pays these fees. Note that the customer also has the option of completing the sale via debit card, in which case they pay no fee, and the business pays the processing fee.
CardX doesn’t include too many bills and whistles, but since the company is owned by Stax, you should be able to integrate with various Stax products if you need added features like recurring billing. Or alternatively, you can use Stax’s API to build your own customized payment solution.
Find more details about CardX features and credit card surcharging program below.
Features Overview
CardX By Stax Features |
Availability |
Dedicated Merchant Account |
|
PCI Compliance |
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High-Risk Accounts |
|
International Accounts |
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Contactless Payments |
|
ACH Processing |
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Digital Wallet Acceptance |
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EBT Acceptance |
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Virtual Terminal |
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Mobile POS Reader & App |
Standalone smart terminal |
Hosted Online Store |
Hosted checkout pages via Lightbox |
Payment Links |
Via Stax integration |
Payment Gateway Integrations |
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Shopping Cart Integrations |
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POS Integrations |
Via Stax integration |
BNPL Integrations |
Via Stax integration |
API Documentation |
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Currency Conversion |
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Recurring Billing |
Via Stax integration |
Invoicing |
Via Stax integration |
Cash Discount Program |
Credit card surcharging program |
Cryptocurrency Processing |
|
Credit Card Surcharging Services
CardX offers 0% transaction fee credit card processing via the following methods:
- In Person: Via Dejavoo credit card terminal
- On Your Website: Via Mastercard Click-To-Pay Lightbox
- Over The Phone: Using the CardX virtual terminal
Credit card surcharging services like the one offered by CardX by Stax may appeal to businesses such as convenience stores, service-based businesses (plumbers, landscapers, hairdressers, etc.), pet groomers, automotive businesses, restaurants, and even eCommerce businesses.
When your business implements a surcharging solution like CardX, customers are incentivized to pay by cash or with a debit card—which is less expensive to process than a credit card and deposits in your business bank account quicker.
One thing that’s missing from CardX’s processing services is that the solution uses a standalone smart terminal for in-person processing and does not have a fully featured POS system, which means CardX probably wouldn’t be a suitable standalone solution for businesses that want point of sale features, such as retail inventory management or restaurant order management.
With that being said, CardX uses Stax’s API, which means you can integrate with any third-party POS system or other software that Stax can integrate with—for an added fee.
Automated Surcharging Compliance
CardX claims to be the only such company that offers a fully compliant surcharging solution—according to the company, most cash discounting processing solutions are non-compliant and can put businesses at risk of legal ramifications.
CardX’s legally compliant solution is a big selling point for larger businesses that want to make sure they are not getting themselves in trouble with the card brands or violating any state laws. In fact, CardX is so trusted that it is Mastercard’s exclusive surcharging partner.
But compliant or not, something to keep in mind is that surcharging is not right for every business and it can leave a bad taste in your customer’s mouth. On its own blog, CardX cites a statistic indicating that 78% of customers think surcharging is unfair.
Fees & Rates
Overall, CardX offers good pricing and moderately good transparency when it comes to the fees and rates it charges for its credit card surcharging solution.
Item | Value | Pricing Range | $29-$199/month, depending on sales volume |
Account Setup Fee | $0 |
Contract Length | Month-to-month |
Processing Model | Credit card surcharging |
Card-present Transaction Fee | 0% for credit (customer pays 3%); 1.25-2.91% + $0.25 for debit (customer pays 0%) |
eCommerce Transaction Fee | 0% for credit (customer pays 3%); 1.25-2.91% + $0.25 for debit (customer pays 0%) |
Equipment Cost | $35-$39/month to rent; $375-$540 to purchase |
Note that debit card processing fees can vary depending on the backend processor CardX sets you up with. You also will not be able to get the lowest rate if you enter a credit card number into your physical terminal (for phone orders, for example); you should use the virtual terminal to get the lowest rate on keyed-in transactions.
CardX Monthly Fees
CardX also charges some monthly fees, though this isn’t immediately clear when looking at the company’s website, which emphasizes CardX as a “zero cost” solution.
CardX’s monthly fees include a virtual terminal fee and terminal rental fee, which covers technical support and terminal replacement. CardX may also be able to reprogram your existing Dejavoo hardware.
Though merchants do have the option of purchasing their terminal outright—which is what we recommend at Merchant Maverick—you cannot avoid the virtual terminal fee, even if you only take payments in person (since the physical CardX terminal also relies on the CardX virtual terminal).
Other Fees
Unfortunately, CardX does not disclose much information about other recurring or one-time fees it may or may not charge. For example, we do not know if CardX charges a PCI compliance fee. We do know that there is no early termination fee, which is a very good thing.
Also note that if you want to add extra features and various integrations offered via Stax, you will have to pay for those add-ons.
Sales & Advertising Transparency
CardX exclusively uses an in-house sales team, which is a big point in its favor when it comes to sales and advertising transparency.
CardX has a professional informative website, which does a good job explaining its product as well as the laws surrounding surcharging. CardX also has its Terms & Services on its website and maintains active social media accounts on LinkedIn and X.
Still, it would be ideal if CardX displayed all of its pricing information prominently on its website. Instead, CardX is repeatedly described on its website as “0% cost,” which isn’t entirely true when considering that merchants will be paying a $29/month fee, or more, if they rent their terminal or process more than $120K/month.
Contract Length & Early Termination Fee
One thing I really appreciate about CardX is that the company has a month-to-month contract, as outlined in the Terms of Service posted on the CardX website. You can cancel your contract at any time as long as you give CardX 30 days’ notice.
You will need to return your terminal if you’re renting it, but you won’t be charged any other termination or account closure fees.
Customer Service & Technical Support
CardX offers multiple channels of customer support including email, 24/7 technical support via phone, and other channels offered from Stax directly, including a live chat function and an online knowledgebase (though CardX does not have its own dedicated knowledgebase).
CardX By Stax Customer Service |
Availability |
Phone Support |
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Email Support |
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Support Tickets |
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Live Chat |
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Dedicated Support Representative |
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Knowledge Base or Help Center |
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Videos & Tutorials |
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Company Blog |
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Social Media |
|
Overall, CardX seems to have adequate support resources, and 24/7 phone support is always a good thing. However, some customers have complained about the quality of Stax’s customer service, which is likely the same entity that provides customer service for CardX.
It’s also unclear what level of technical support you will receive if you do not opt for the terminal rental plan.
CardX User Reviews
Frustratingly, there are no user reviews of CardX to be found online. CardX does have a BBB profile (which predates its acquisition by Stax), but it has no comments or complaints.
However, there are plenty of reviews of CardX’s parent company, Stax. Stax reviews are mixed, but mostly positive. As such, we consider Stax to be one of the best small business credit card processors, period.
As CardX is a service of Stax, it makes sense to evaluate the user reviews of Stax when deciding whether to use CardX (especially given the lack of CardX reviews at our disposal).
Here are some positive and negative things Stax merchants have to say online.
Negative Reviews & Complaints
Some common complaints about Stax include:
- Hidden fees
- Deceptive sales tactics
- Mediocre customer support
Positive Reviews & Testimonials
Some themes of positive Stax reviews include:
- Intuitive, easy-to-use platform
- Savings on credit card fees (particularly for large-volume businesses)
- Good invoicing capabilities
Final Verdict On CardX by Stax
On the whole, CardX by Stax can be a good surcharging solution for businesses that want to implement this credit card processing model to save on fees. Just be aware that using CardX does not mean you can process cards without incurring any fees—monthly account fees and debit card processing fees will still apply.
Surcharging is not right for all businesses, but CardX’s automated compliance makes it a good choice if you do want to use this type of processing, particularly if you own a larger business and want to save on processing fees while also protecting your business from possible legal ramifications of noncompliant surcharging or cash discount implementations.
Since CardX doesn’t make its monthly fee structure completely clear on its website, be sure to get in writing exactly what terms and fees you’ll be agreeing to before you sign up—this is actually true for any payment processor. But from what I can tell, CardX’s terms look pretty above-board and merchant-friendly, especially considering the contract is month-to-month.
If you’re interested in ways to reduce your credit card processing fees in general, check out our post on how to offset or reduce your credit card processing fees.
Credit Card Processor Review Methodology
We evaluate and test each payment processor that we review at Merchant Maverick, placing special emphasis on certain key characteristics in order to generate our granular ratings for merchant accounts and credit card processors.
Weighted Rating Breakdown
Fees & Rates 35%
Contract 20%
Products & Services 15%
Sales & Advertising Transparency 15%
Customer Service 10%
User Reviews 5%
For payment processing reviews, we use a 24-point rubric to evaluate the provider. First, we look at pricing structure – interchange plus, subscription-based, tiered, or hybrid – giving the most points to providers that provide fair, transparent pricing and docking those that rely on tiered models. Then we examine rates, the presence and transparency of early termination fees, and any additional fees.
We also look at contract length and fairness and test out sales staff and customer service channels ourselves to ensure that the company uses reputable, above-the-board sales techniques. Finally, we take the company’s online reputation into account, reading customer reviews and comments.
Read more about how we rate payment processors.
To learn more about how we score our reviews, see our