---
title: "DunningFeeKind – API-Referenz · Quittio"
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[API reference](https://quittio.dev/docs/api) / [Quittio](https://quittio.dev/docs/api/Quittio) \\ [Core](https://quittio.dev/docs/api/Quittio/Core) \\ [Documents](https://quittio.dev/docs/api/Quittio/Core/Documents)

# DunningFeeKind

string-backed enum in quittio/core

`Quittio\Core\Documents\DunningFeeKind` · [Source](https://github.com/Quittio/quittio/blob/v0.7.1/packages/core/src/Documents/DunningFeeKind.php#L10)

What a fee of a payment reminder is.

## Cases \#

| Case | Value | Description |
| --- | --- | --- |
| `Fee` | `'fee'` | Costs of the reminder or other fees of the creditor. |
| `FlatRate` | `'flat_rate'` | The flat rate for recovery costs of a late payment between businesses (Article 6 Directive 2011/7/EU; in Germany 40 EUR, section 288 (5) BGB), once per claim. |

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