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Validation & rules

KoSIT

KoSIT (Koordinierungsstelle für IT-Standards) is the German body that maintains the XRechnung standard and publishes the official validator and its Schematron rule set — its rules decide whether an XRechnung counts as conformant.

Also:
Koordinierungsstelle für IT-Standards
Reviewed on 2026-08-26.

There is no long-form article for this term yet. The definition above is the complete entry; the related terms lead onwards.