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KoSIT

The standards body behind XRechnung and the Leitweg-ID.

Definition

KoSIT coordinates the German public administration's XÖV exchange standards. It publishes and evolves the XRechnung specification (twice a year), issues the associated validation rules (Schematron), and administers Leitweg-ID assignment together with the federal states and the federal government.

Origin

Operated by the city-state of Bremen on behalf of the IT-Planungsrat (the federal-state IT planning council); publisher of the XRechnung specification, a CIUS of EN 16931-1.

Example in context

The XRechnung specification identifier points to KoSIT: urn:xeinkauf.de:kosit:xrechnung_3.0

  • XRechnung — the specification maintained by KoSIT.
  • Leitweg-ID — the routing identifier administered by KoSIT.

Last updated: June 20, 2026