> ## Documentation Index
> Fetch the complete documentation index at: https://soran.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Transaction fees

> Account for what your payment processor takes.

A transaction fee rule describes what your payment processor keeps.

A rule that names no payment method is the property's fallback, and it is the
only rule most stores will ever need — a processor's rate is one contract
covering every charge you take.

Add per-method rules when you genuinely run more than one processor, or when a
method you accept is priced differently from the rest.

## Related

> **[Expenses and profit](/docs/data/expenses-and-profit)**
>
> The other kinds of cost.


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.