Validation rules

BR-CO-13 — EN 16931 rule

Supplied totals.net does not equal the sum of line nets minus document allowances plus document charges.

Rule: BR-CO-13 — official EN 16931 / XRechnung rule
Severity: error
Business term: BT-109 — Total without VAT
Field in your JSON: invoice.totals.net

How to fix it

Remove invoice.totals to let normbill compute it, or fix the amount.

BR-CO-13 auf Deutsch — was bedeutet der Fehler?

Der angegebene Rechnungsbetrag ohne Umsatzsteuer (totals.net, BT-109) entspricht nicht der Summe der Positionen abzüglich Nachlässen zuzüglich Zuschlägen auf Dokumentebene.

So beheben Sie den Fehler

Lassen Sie invoice.totals weg, damit normbill die Summen exakt berechnet — oder korrigieren Sie den Betrag.

Related rules

BR-DEC-12 — totals.net (BT-109) has more than 2 decimal places — EN 16931 allows at most 2.
BR-13 — The invoice total without VAT (BT-109) is missing from the document totals.
BR-CO-14 — Supplied totals.tax does not match the computed VAT breakdown.
BR-CO-12 — The sum of document-level charges (BT-108) does not equal the sum of the individual charge amounts (BT-99).
BR-CO-15 — Supplied totals.gross does not equal net + tax.
BR-CO-11 — The sum of document-level allowances (BT-107) does not equal the sum of the individual allowance amounts…

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.