EU E-Invoice APILicences and notices
The API, the web validator and the rule pages use published rule sets. This page names their owners and licences.
EN 16931
This is an implementation of the semantic data model and syntaxes of EN 16931, reproduced with the permission of CEN and the relevant national standardisation bodies (in Germany DIN), the copyright owners. They bear no liability for its content or implementation. In case of doubt, always refer to the official text of the standard. CEN validation artefacts: EUPL 1.2, source.
Rule sets
| Rules | Owner | Licence | Source |
|---|---|---|---|
| EN 16931 rules (BR-*, BR-CO-*, BR-CL-*, UBL-*, CII-*) | CEN, published by the European Commission | EUPL 1.2 | Link |
| XRechnung rules (BR-DE-*, BR-DEX-*) | KoSIT | Apache License 2.0 | Link |
| ZUGFeRD / Factur-X rules (FX-SCH-*) | FeRD and FNFE-MPE | Apache License 2.0 for the Schematron | Link |
| French rules (BR-FR-*) | FNFE-MPE | Repository: Apache 2.0. Rule files: EUPL. Used under the EUPL 1.2 | Link |
| Romanian rules (BR-RO-*) | Romanian Ministry of Finance | EUPL 1.2 | Link |
| Croatian rules (HR-BR-*) | Porezna uprava | Reproduced with attribution of the source | Link |
The texts on the rule pages are taken from these files without changes. Rule identifiers, severities and the site's own descriptions come from this project.
Peppol
OpenPeppol does not allow its rule text to be redistributed, so this site does not print it. Peppol rule pages link to the official documentation.
Licence texts
Fonts
This site hosts its fonts itself: Instrument Sans (SIL Open Font License 1.1) and DM Mono (SIL Open Font License 1.1).
Marks
ZUGFeRD, FeRD, Factur-X, XRechnung, Peppol and other names belong to their owners. They are used here only to describe the formats. This service is not certified or endorsed by them.