Fiscal subject related
A new guide has been published to make B2B e-invoicing in Germany more consistent. It shows how the mandatory information required by the German VAT Act (UStG) can be matched to the European e-invoicing standard EN 16931-1.
The goal is to give invoice issuers, software providers, and service companies a clear reference so that e-invoices meet legal requirements while also following a common technical standard. This helps ensure legal compliance and smooth processing of electronic invoices.
The work is a joint effort between major e-invoicing groups in Germany:
- KoSIT / XStandards Einkauf (xeinkauf.de): responsible for the XRechnung standard,
- FeRD: maintaining the ZUGFeRD hybrid format,
- AWV (Arbeitsgemeinschaft für wirtschaftliche Verwaltung e.V.): supporting the project.
How does the mapping work?
The core of the initiative is a table that links UStG requirements with EN 16931 fields.
Examples:
- Invoice date (§14 Abs. 4 Nr. 3 UStG) → “BT-2 Invoice issue date”
- Invoice number (§14 Abs. 4 Nr. 4 UStG) → “BT-1 Invoice number”
- Supplier’s name and address (§14 Abs. 4 Nr. 1 UStG) → “BG-4 SELLER” and “BG-5 SELLER POSTAL ADDRESS”
For special cases, the guide gives detailed instructions:
- Reverse charge: the phrase “Steuerschuldnerschaft des Leistungsempfängers” should be entered in “BT-120 VAT exemption reason text.”
- Cash-based accounting (§14 Abs. 4 Nr. 6a): use “BT-1 Invoice note” with the text “Versteuerung nach vereinnahmten Entgelten” and add “BT-7/BT-8 VAT point date.”
This ensures every legally required field has a standard place in the structured e-invoice.
Having one clear mapping prevents different interpretations and reduces legal risks. It also makes automation easier.
Future updates are planned. For example:
- Prepayment and final invoices currently need to be attached separately, but structured support is expected in future EN 16931 revisions,
- Additional requirements from Commercial Law (HGB) and payment details will also be added.
In short, this guide is a big step toward uniform and reliable e-invoicing in Germany, with more improvements coming.
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