Validation rules

BR-CO-15 — EN 16931 rule

Supplied totals.gross does not equal net + tax.

Rule: BR-CO-15 — official EN 16931 / XRechnung rule
Severity: error
Business term: BT-112 — Total with VAT
Field in your JSON: invoice.totals.gross

How to fix it

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

BR-CO-15 auf Deutsch — was bedeutet der Fehler?

Der angegebene Gesamtbetrag (totals.gross, BT-112) entspricht nicht Netto plus Umsatzsteuer.

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-14 — totals.gross (BT-112) has more than 2 decimal places — EN 16931 allows at most 2.
BR-14 — The invoice total with VAT (BT-112) is missing from the document totals.
BR-CO-14 — Supplied totals.tax does not match the computed VAT breakdown.
BR-CO-16 — The amount due (BT-115) must equal the invoice total with VAT (BT-112) minus the paid amount (BT-113), plus…
BR-CO-13 — Supplied totals.net does not equal the sum of line nets minus document allowances plus document charges.
BR-CO-17 — A VAT breakdown's tax amount (BT-117) does not equal its taxable amount (BT-116) multiplied by the category…

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.