Stax (formerly Payment Depot)

Subscription processing with wholesale interchange

4.4 / 5 · PSPDex editorial scoreSubscriptionDirect acquirer / ISOStandard risk

Last verified: September 2026

Overview

Stax charges one flat monthly membership for wholesale interchange rates with no per-transaction markup, the subscription model that starts saving money once volume is real.

Pricing

Interchange + $99–$199/mo membership

Best for

RetailEcommerceB2BSubscriptions

Key features

Flat monthly membership
Wholesale interchange rates
No per-transaction markup
Same-day funding option

What we like

Big savings at volume
Predictable costs
Month-to-month terms

Watch out for

Monthly fee regardless of volume
Overkill for tiny volumes

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