# New Dynamic Fee Workflows

## Supplemental Fees

You can now create a `supplemental_fee` at the time of `transfer` creation or `authorization` capture.
This allows you to charge interchange plus pricing and for customer to calculate and charge an additional fee for each transfer.

You can view how to create a supplemental fee using our API reference for a [Transfer](/api/transfers/createtransfer) or [Authorization](/api/authorizations/createauthorization).

## Attaching a Fee Profile to a Transfer or Authorization Capture

Ability to provide which fee_profile to use at time of transfer creation or authorization capture. This allows you to create multiple fee profiles and choose which one they want to apply for each transfer. If not provided fee_profile will default to the on assigned to the merchant

You can view how to attach a Fee Profile using our API Reference for a [Transfer](/api/transfers/createtransfer) or [Authorization](/api/authorizations/captureauthorization).