#zugferd

A complete developer reference for Factur-X — the hybrid PDF/A-3 + CII XML format used across France, Germany, and Luxembourg. XML anatomy, profile hierarchy, EN 16931 rule mapping, validation errors, and code samples.

Factur-X and ZUGFeRD are technically the same format with different names. But the details matter when you're trying to pass validation. Here's what you need to know.

FeRD and FNFE-MPE will release ZUGFeRD 2.5 / Factur-X on May 20, 2026 — adding native gross invoice support, refreshed EN 16931 code lists, and ViDA-ready fields. Here's what changes, what breaks, and what to ship before customers start sending 2.5 invoices into your ERP.

ZUGFeRD and XRechnung are Germany's two e-invoice formats — but they solve different problems. This guide covers the XML structures, validation rules, profile mappings, and integration patterns ERP developers need to choose the right format.

Reception has been mandatory since January 2025. The B2B sending mandate is roughly eight months away. Here's the current state, what changed in 2026, and what to do before January 2027.