[aligned-ibrp-z-07]-In a Document level charge (ibg-21) where the Document level charge VAT category code (ibt-102) is "Zero rated" the Document level charge VAT rate (ibt-103) MUST be 0 (zero).
aligned-ibrp-z-07
cac:AllowanceCharge[cbc:ChargeIndicator=true()]/cac:TaxCategory[normalize-space(cbc:ID)='Z'][cac:TaxScheme/normalize-space(upper-case(cbc:ID))='VAT']
(xs:decimal(cbc:Percent) = 0)