eunormia Blog: expert knowledge on e-invoicing and compliance
Welcome to the eunormia blog — your hub for the technical side of electronic invoicing. We cover formats, integration and implementation, validation and standards compliance. We look at ZUGFeRD and Factur-X as well as XRechnung, and adjacent topics such as EN 16931 and Peppol. Stay informed, efficient and compliant with eunormia.
The e-invoicing rulebook keeps moving — and why “always current” is the point
22 July 2026
Germany’s B2B mandate, France’s reform, ViDA at EU level, fresh format versions — the rules shift every few months. A tour of what actually changed, and what it means for anyone issuing invoices.
ZUGFeRD, Factur-X, XRechnung and EN 16931 — how the pieces fit together
10 July 2026
Four names, one goal — an invoice a machine can read without guessing. Here is the clearest possible map of how the European e-invoice standards relate, without the acronym soup.
Representing cash discounts (Skonto) correctly in e-invoices
26 May 2026
"2% within 10 days, otherwise net 30" is trivial on paper — and surprisingly easy to get wrong in a structured e-invoice. Here is how to encode an early-payment discount so it survives EN 16931 validation.
AI in e-invoicing: why the hype can be dangerous in accounting
15 March 2026
AI is everywhere — but in invoice processing a confident, plausible-looking wrong number is worse than an obvious error. Where machine learning genuinely helps, and where determinism has to win.