---
title: "AustrianFormatRule – API-Referenz · Quittio"
description: "Formats for Austrian public buyers: a buyer with an Austrian organisation number (electronic address scheme 9915, e.g. \"b\" for the federal government on Peppol) receives UBL in the CIUS of e-Rechnung.gv.at (CIUS-AT-GOV)."
canonical_url: "https://quittio.dev/docs/api/Quittio/Country/AT/Formats/AustrianFormatRule"
locale: de
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  "og:image": "https://quittio.dev/og/quittio-de.jpg"
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  "twitter:image:alt": "Quittio: E-Rechnungen für PHP und Laravel. Rechtssicher, validiert, archiviert, mit geprüfter Beispielrechnung."
---

> Index of every page on this site: [llms.txt](https://quittio.dev/llms.txt)

[API reference](https://quittio.dev/docs/api) / [Quittio](https://quittio.dev/docs/api/Quittio) \\ [Country](https://quittio.dev/docs/api/Quittio/Country) \\ [AT](https://quittio.dev/docs/api/Quittio/Country/AT) \\ [Formats](https://quittio.dev/docs/api/Quittio/Country/AT/Formats)

# AustrianFormatRule

final readonly class in quittio/country-at · implements [`FormatRule`](https://quittio.dev/docs/api/Quittio/Core/Formats/FormatRule)

`Quittio\Country\AT\Formats\AustrianFormatRule` · [Source](https://github.com/Quittio/quittio/blob/v0.7.1/packages/country-at/src/Formats/AustrianFormatRule.php#L21)

Formats for Austrian public buyers: a buyer with an Austrian organisation number (electronic address scheme 9915, e.g. "b" for the federal government on Peppol) receives UBL in the CIUS of e-Rechnung.gv.at (CIUS-AT-GOV).

There is no e-invoicing obligation between businesses in Austria; everything else is left to the format resolver.

## Methods \#

| Method | Description |
| --- | --- |
| `->resolve()` | |

### `resolve()`#

```
public function resolve(InvoiceData $invoice): ?FormatChoice
```

| Parameter | Type | Description |
| --- | --- | --- |
| `$invoice` | `[InvoiceData](https://quittio.dev/docs/api/Quittio/Core/Data/InvoiceData)` | |

<dl><dt>Returns</dt>
<dd><code>?<a href="https://quittio.dev/docs/api/Quittio/Core/Formats/FormatChoice">FormatChoice</a></code></dd>
</dl>

```json
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```