XRechnung 2.3.0 · UBL
Rules: XRechnung Schematron rules by Koordinierungsstelle für IT-Standards (KoSIT) · Apache-2.0
[BR-IG-05]-In an Invoice line (BG-25) where the Invoiced item VAT category code (BT-151) is "IGIC" the invoiced item VAT rate (BT-152) shall be 0 (zero) or greater than zero.
(cbc:Percent) >= 0