A valid XRechnung in UBL syntax, widely used for German public-sector invoicing. Passes all EN 16931 and XRechnung schematron rules.

XRechnung in CII (Cross-Industry Invoice) syntax — the alternative serialisation accepted by all German public authorities.

A Factur-X EN 16931 (Comfort profile) XML — the machine-readable layer embedded in French e-invoices. Mandatory for B2B in France from September 2026.

A PEPPOL BIS Billing 3.0 invoice — the cross-border standard used across 40+ countries for public procurement. EN 16931 compliant.

A deliberately invalid UBL invoice containing common EN 16931 violations — missing mandatory fields, wrong code lists, and arithmetic errors. Use it to test your validator's error reporting.

A deliberately invalid CII invoice with EN 16931 schematron failures. Useful for integration-testing error handling in your e-invoicing pipeline.