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Stax

All-In-One Payment Processing Platform

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Stax - 2026 Pricing, Features, Reviews & Alternatives

All user reviews are verified by in-house moderators and provider data by our software research team. Learn more

Last updated: March 2026

Stax overview

What is Stax?

Stax is an all-in-one payment technology platform built for businesses that have outgrown flat-rate processors. With subscription-based pricing and 0% markup on direct-cost interchange, Stax saves businesses up to 40% on payment processing fees — no hidden costs, no percentage markups.

The platform includes Stax Pay for in-person, online, and mobile payment acceptance; Stax Bill for automated recurring billing and invoicing; CardX for compliant credit card surcharging; and Stax Connect, an embedded payments solution that enables SaaS companies and ISVs to integrate full-stack payment processing directly into their software.

As an end-to-end processor, Stax handles the entire transaction lifecycle in-house — from authorization to settlement — giving businesses and software platforms more control, better economics, and dedicated support. Over 30,000 businesses trust Stax to process more than $30 billion in payments.

Key benefits of using Stax

- Stax’s all-in-one, secure payment platform powers software companies, businesses, and ISOs with multi-channel, end-to-end payment processing. Our innovative programs and technology feature vertically tailored solutions, driving long-term value and revenue.

- Stax Pay offers omni-channel payment solutions for SMBs, including in-person, mobile, and online payments. Use the Stax mobile app for payment management on-the-go, and integrate with multiple leading payment gateways for seamless online payments. Our standalone smart terminals also feature the latest technologies with swipe, dip, and tap capabilities.

- Stax Pay features access to real-time reporting, simple deposit management, and monthly processing statements, all within a single dashboard. Receive branded, easy-to-use billing and invoicing tools customized to your business, plus zero credit card transaction fees with integrated compliant surcharging.

- We offer a transparent, subscription-based pricing model, ensuring cost visibility, as well as an interchange-plus pricing alternative.

- With Stax Connect, integrated SaaS companies and ISVs can maximize the value of embedded payments and unlock new sustainable revenue streams among merchants. Our customizable partnership models are tailored to your business’s needs, with custom pricing, simplified enrollment and implementation, risk management, and underwriting procedures.

- We deliver an unparalleled, high-touch support experience with flexible reseller, referral, and Payfac programs led by industry experts. Stax Connect offers partners single API integration and branded white label capabilities, as well as merchant adoption expertise, real-time growth strategies, and security and compliance. We provide essential infrastructure like omni-channel payment processing, bank sponsorship, settlement, security, and surcharging.

- Stax Connect Plus features a full-service partnership team to help SaaS and ISVs drive payments attachment and revenues. With our sales, support, and activations services, we act as an extension of your business, helping you to maximize revenue and leverage payments-led growth.

Starting price

99flat rate /
per month

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Pros & Cons

Pricing

Customer Support

Phone Support

Payment Processing

Customer Refunds

Bugs and Issues

Stax’s user interface

Ease of use rating:

4.0

(116)

Stax pros, cons and reviews insights

To determine these pros and cons insights, we analyzed responses from

Overall rating

Reviews sentiment

1-2(25)

3-4(15)

5(76)

What do users say about Stax?

The pricing structure is clearer, support is more accessible, and you actually feel like a valued customer rather than just an account number. If you’re comparing payment platforms, Stax is hands-down a better experience than Stripe and others in the space.

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Who uses Stax?

Based on 116 verified user reviews.

Company size

Small Businesses

Enterprises

Midsize Businesses

Top industries

Health, Wellness and Fitness

Retail

Automotive

Medical Practice

Others

Use cases

Payment Processing

Small Business POS

Billing and Invoicing

Mobile Credit Card Processing

Merchant Service Providers

Stax's key features

Most critical features, based on insights from Stax users:

Debit/Credit card processing

4.0

(69)

Online payments

4.1

(56)

Multiple payment options

4.4

(44)

Mobile payments

4.0

(38)

In-Person payments

4.1

(18)

Payment processing

3.1

(22)

All Stax features

Features rating:

4.1

(116)

Transaction history

3.7

(3)

Billing portal

4.7

(3)

Reporting/Analytics

2.5

(2)

Credit card processing

4.3

(7)

Invoice history

4.8

(4)

Customizable invoices

5.0

(2)

Transaction monitoring

2.1

(8)

Online invoicing

4.5

(6)

Real-Time data

3.9

(27)

Self service portal

4.9

(12)

PCI compliance

4.2

(18)

Payment links

4.5

(33)

Payment gateway integration

3.7

(12)

Customizable branding

4.6

(27)

Electronic payments

1.7

(7)

Gift card management

5.0

(1)

Third-Party integrations

5.0

(1)

Electronic signature

3.0

(2)

Point of sale (pos)

2.0

(2)

Point of sale (pos) integration

(0)

QuickBooks integration

(0)

Real-Time reporting

(0)

Receipt management

(0)

Recurring/Subscription billing

(0)

Reporting & statistics

(0)

Sales reports

(0)

Tax calculation

(0)

Visual analytics

(0)

ACH payment processing

1.0

(4)

Alerts/Notifications

(0)

API

(0)

Barcode/Ticket scanning

(0)

Billing & invoicing

1.0

(7)

Contact database

(0)

Contactless nfc

(0)

Credit card management

(0)

Customizable reports

(0)

Data import/export

2.0

(1)

Data synchronization

(0)

Discount management

(0)

Financial reporting

(0)

Invoice creation

(0)

Invoice management

(0)

Invoice processing

(0)

Mobile access

(0)

Mobile card reader

(0)

Multi-Currency

(0)

Multi-Location

(0)

Stax alternatives

Stax

4.0

(116)

visit website

Starting from

Per month

Free trial

Free version

Ease of Use

4.2

Features

4.1

Value for Money

4.0

Customer Support

3.9

PayPal

4.6

(26.2K)

learn more

Starting from

No pricing info

Free trial

Free version

Ease of Use

Features

Value for Money

Customer Support

Venmo

4.7

(9.2K)

learn more

Starting from

No pricing info

Free trial

Free version

Ease of Use

Features

Value for Money

Customer Support

Stripe

4.6

(3.2K)

learn more

Starting from

No pricing info

Free trial

Free version

Ease of Use

Features

Value for Money

Customer Support

Stax pricing

Value for money rating:

4.0

(116)

Starting from

Per month

Flat Rate

Pricing details

Subscription

Free trial

Free plan

Pricing range

User opinions about Stax price and value

Value for money rating:

4.0

(116)

To see what individual users think of Stax's price and value, check out the review snippets below.

“Their helpline is always open and has been super supportive in getting my questions answered. Payments are processed quickly and my clients have found the system easy to use and invoices were helpful.”

Caitlin H.

Business Owner

“I see my money transfers quickly and I love not having to deal with the high percentages taken from my profit like other processors.”

Caitlin H.

Business Owner