XRechnung 4.0 — Germany’s New Electronic Invoice Standard and Peppol
XRechnung is the German CIUS of EN 16931, mandatory for B2G suppliers since 2017 and increasingly used in the private sector. In March 2026 KoSIT announced version 4.0 — based on EN 16931-1:2026 and a key building block of the upcoming B2B mandate and ViDA.

