Validation rules

PEPPOL-EN16931-R053

Exactly one tax total with tax subtotals must be provided.

Rule: PEPPOL-EN16931-R053 — official EN 16931 / XRechnung rule
Severity: error
Detected by: tier 3 — KoSIT validator (authoritative)
Reachability: Only reachable when validating your own XML — normbill-generated documents cannot trigger it

The serializer emits exactly one TaxTotal.

How to fix it

Merge the VAT breakdowns into a single cac:TaxTotal.

PEPPOL-EN16931-R053 auf Deutsch — was bedeutet der Fehler?

Es muss genau einen TaxTotal mit Steueraufschlüsselungen geben.

So beheben Sie den Fehler

Fassen Sie die Aufschlüsselungen in einem einzigen cac:TaxTotal zusammen.

Official sources

XRechnung specification (KoSIT / xeinkauf.de)
KoSIT validator on GitHub and the XRechnung validator configuration

Every 422 from the API lists the rule id, the path in your request JSON, a plain-language message and a suggested fix — see the docs overview for the report format.

Or try it live: drop any XRechnung XML on the free validator — same KoSIT-backed report, no account.