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

# Invoice fees

> [!TIP]
>
> Documentation for invoices: [Overview](https://docs.ca.cryptoprocessing.com/invoices), [Fees](https://docs.ca.cryptoprocessing.com/invoices/fees), [Create invoice](https://docs.ca.cryptoprocessing.com/api-reference/endpoints/invoices-create), [Cancel invoice](https://docs.ca.cryptoprocessing.com/api-reference/endpoints/invoices-cancel), [Callbacks](https://docs.ca.cryptoprocessing.com/api-reference/callbacks/invoice-payment-callbacks).
>
> For new integrations, **consider [migrating to payment requests](https://docs.ca.cryptoprocessing.com/payment-requests/migration-guide.md) instead**.

## Processing fee

A fee will be subtracted from your account once for each paid invoice, even if the customer paid it in several transactions. The fee is the same as a [deposit fee](https://docs.ca.cryptoprocessing.com/deposits/fees.md) for the same amount.

Just like for a deposit, the fee may depend on the currency and on whether the payment involved a conversion between different currencies. Each fee is calculated as a percentage of the deposit amount, but for small transactions, a certain minimum amount will be subtracted instead.

The fees are listed on the **Fees** tab in your portal, under the **Deposit operations** section. The applicable fees are:

* **Deposit crypto**
* **Deposit crypto exchange to crypto**
* **Deposit crypto exchange to fiat**

## Refund fee

When the customer claims a [refund](https://docs.ca.cryptoprocessing.com/invoices#emails-and-refunds) of a payment that doesn't match the invoice, a fixed *refund fee* is subtracted from the refund. The fee may depend on the currency of the refund, which is the same currency the customer paid.

If the amount to refund is smaller than the refund fee plus the [minimum withdrawal amount](https://docs.ca.cryptoprocessing.com/confirmations-and-limits.md), it can't be refunded, and the customer gets an email saying so instead.


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