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E-Invoice Validator

BR-28

MistakeUBLCII

Official rules text

= 0 or not(exists(cac:Price/cac:AllowanceCharge/cbc:BaseAmount))">[BR-28]-The Item gross price (BT-148) shall NOT be negative.

Rules and regulations

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Official rule sets up to date: EN 16931 1.3.17 · Peppol BIS 3.0.20 · XRechnung 3.0.2 (KoSIT 2.6.0). Last checked against the sources on 12.10.2026.