Germany publishes EN 16931 e‑invoicing guideline mapped to VAT Act

1. Purpose and origin of the new guideline

On 28 July 2025, a comprehensive e‑invoicing guideline was announced by XStandards for Purchasing (XStandards Einkauf), aligning the invoice content obligations in the German VAT Act (Umsatzsteuergesetz, UStG) with the European e‑invoicing standard EN 16931. The announcement is available here (German): XStandards – UStG/EN 16931 mappingopen_in_new.​

The document is the result of a joint effort by several key organisations in the German e‑invoicing and digitalisation ecosystem:​

• XStandards Einkauf – the government‑led framework for standardisation and digitalisation in public procurement, including XRechnung, coordinated by KoSIT (Koordinierungsstelle für IT‑Standards).​
• The Forum elektronische Rechnung Deutschland (FeRD) – the German e‑invoice forum responsible for the ZUGFeRD specifications.​
• The Arbeitsgemeinschaft für wirtschaftliche Verwaltung e.V. (AWV) – the German Association for Economic Administration, which promotes business‑friendly administrative processes and more efficient public sector frameworks.​

2. Structure and use of the mapping

The guideline presents a systematic table that connects each mandatory VAT Act requirement to its corresponding EN 16931 elements:​

For each requirement, the mapping specifies:​

• The mandatory invoice content required by German law (for example, supplier details, tax amount, supply date).
• The legal reference in the German VAT Act (specific sections and paragraphs of UStG).
• The matching EN 16931 structure, including relevant Business Groups (BG) and Business Terms (BT) where this information must be placed in the e‑invoice.​

This level of detail helps:​

• Businesses understand exactly where each legal data element must go in an EN‑compliant e‑invoice.
• Software vendors and service providers configure their systems so that every legally required VAT field is correctly implemented in EN 16931‑based formats such as XRechnung or Peppol BIS.

The guideline can be accessed and downloaded from XStandards Einkauf’s dedicated page: UStG–EN 16931 mapping – XStandards Einkaufopen_in_new. The page will be updated regularly to reflect any future legal or standardisation changes, helping stakeholders keep their e‑invoicing solutions up to date.