FeeRules.com

Surcharging API for Modern Payments

Effortless, compliant surcharging for every payment. One simple API to add surcharges to your payment flows.

Lightning Fast API

API First

Integrate surcharging in minutes with our developer-friendly API.

Fully Compliant

Compliant

Built-in compliance logic for every transaction across all states in USA and Canada.

Simple Integration

Plug & Play

Drop-in support for all major payment processors and platforms. We can help with any integration.

Customized Solution

Tailored Integration

Seamlessly integrate into existing payment infrastructure. Works with any software platform, syncing to accounting tools and ERPs.

Out of the Box Solutions

Ready to Deploy

Get started instantly with prebuilt tools. Virtual terminals, e-commerce pages, and ERP integrations included. All our external integrations are supported via POS+.

Multi-Channel Support

Unified Experience

Consistent surcharging across online, in-store, mobile, and recurring payments with one unified rule set.