Stax offers an integrated payments and billing platform that consolidates card, ACH, mobile, and QR‑code transactions with recurring subscription billing and compliant surcharging. Through a unified API and dashboard, businesses and software platforms can accept payments in‑person, online, or via mobile, automate invoicing and dunning, and access real‑time analytics with transparent pricing.
Funding
$245M raised to dateRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.
Founders
Product
Problem
Businesses and software platforms often struggle with fragmented payment processing, recurring billing, and surcharging compliance, requiring multiple vendors, complex integrations, and opaque pricing. This leads to operational inefficiencies, missed revenue, and difficulty scaling payment services.
Solution
Stax provides an integrated payments and billing platform that consolidates card, ACH, and mobile payments, recurring subscription billing, and compliant surcharging into a single, API‑driven solution. The all‑in‑one dashboard offers transparent subscription‑based pricing, real‑time analytics, and automated invoicing, reducing the need for separate processors and manual reconciliation. For ISV partners, Stax Connect adds white‑label API access, enrollment workflows, risk management, and settlement services, enabling rapid embedded‑payment launches without building infrastructure. Built‑in compliance tools automatically apply state and federal surcharging rules, while the CardX offering lets merchants offset credit‑card fees entirely. The platform also includes mobile and smart‑terminal hardware, payment links, QR codes, and hosted Lightbox pages, allowing businesses to accept payments in‑person, online, or on‑the‑go with minimal development effort.
Target Audience
Primary customers are SMB merchants, enterprise retailers, and SaaS/ISV platforms seeking embedded payment capabilities and automated subscription billing.
Features
- Unified payment acceptance for card, ACH, Apple Pay, Google Pay, and QR‑code payments across in‑person, online, and mobile channels
- Transparent subscription‑based pricing with optional interchange‑plus models and zero‑fee credit‑card processing via CardX surcharging
- All‑in‑one dashboard for invoicing, recurring billing, automated dunning, tax calculation, and ASC 606‑compliant revenue recognition
- White‑label RESTful API and embedded payment SDKs for ISVs, supporting referral, reseller, and PayFac partnership models
- Automated compliance engine that applies surcharges only to eligible credit‑card transactions and exempts debit cards per regulations
- Real‑time analytics, sales trend reporting, and deposit reconciliation with one‑click statement generation
- Mobile app and customizable smart terminals for on‑the‑go payment collection, including Bluetooth, USB‑C, and Lightning connectivity
- Integrated support team offering phone, online, and knowledge‑base assistance, plus dedicated implementation and growth managers for partners