Validation rules

PEPPOL-EN16931-R054 — Peppol BIS rule

When a tax accounting currency is used, exactly one additional tax total without subtotals must carry it.

Rule: PEPPOL-EN16931-R054 — official EN 16931 / XRechnung rule
Severity: error
Detected by: tier 3 — KoSIT validator (authoritative)
Reachability: Not expressible through the normbill invoice model — documented for completeness

The normbill invoice model has no VAT accounting currency (BT-6).

How to fix it

Add the second cac:TaxTotal with only the converted tax amount.

PEPPOL-EN16931-R054 auf Deutsch — was bedeutet der Fehler?

Bei einer Umsatzsteuer-Währung muss genau ein zusätzlicher TaxTotal ohne Aufschlüsselungen diese Währung tragen.

So beheben Sie den Fehler

Ergänzen Sie den zweiten cac:TaxTotal nur mit dem umgerechneten Steuerbetrag.

Related rules

PEPPOL-EN16931-R053 — Exactly one tax total with tax subtotals must be provided.
PEPPOL-EN16931-R055 — The invoice total VAT amount and its accounting-currency counterpart must have the same sign.
PEPPOL-EN16931-R061 — A direct-debit payment (means code 49/59) must carry a mandate reference (BT-89).
PEPPOL-EN16931-R046 — The item net price must equal the gross price minus the price allowance when a gross price is provided.
PEPPOL-EN16931-R044 — A charge on price level is not allowed — only allowances (indicator 'false').
PEPPOL-EN16931-R043 — An allowance/charge indicator must be exactly 'true' or 'false'.

Official sources

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.