Fattmerchant (Stax)
PaidAll-in-one payment platform with subscription pricing and zero interchange markup
📱Mobile PaymentsAbout Fattmerchant (Stax)
Fattmerchant, now rebranded as Stax, pioneered the subscription-based zero-markup payment processing model. The platform offers a unified solution for in-person POS, online payments, invoicing, ACH processing, and business analytics under a flat monthly subscription fee. Merchants pay interchange at cost with no percentage added on top, which can result in substantial savings for businesses processing over $10,000 per month.
What's Great
- ✓Zero interchange markup model delivers lowest effective processing rates at volume
- ✓Unified platform for in-person POS, online, invoicing, and ACH payments
- ✓Flat monthly subscription makes payment costs predictable and budgetable
- ✓Business analytics and reporting tools provide operational insights
Watch Out For
- !Monthly subscription fee is not cost-effective under $10,000/month processing volume
- !Now branded as Stax, creating some confusion with legacy Fattmerchant references
- !Per-transaction cent charge still applies alongside the subscription
- !Hardware must be purchased separately adding to upfront costs
Common Use Cases
Business processing $20,000+ monthly wanting to minimize per-transaction percentage costs
Merchant consolidating online and in-person payments under a single subscription platform
Service business using ACH and invoicing alongside card processing in one dashboard
Pricing Model
Paid
Paid subscription required. Check the website for current pricing and free trials.
Category
Mobile Payments
Mobile card readers and apps for accepting payments anywhere from a smartphone or tablet.
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