[ibr-119-ae]-Each VAT breakdown (IBG-23) shall have a VAT category rate (IBT-119), except if the Invoice is not subject to VAT.
ibr-119-ae
cac:TaxSubtotal
(cac:TaxCategory/cbc:ID = "O") and not(cac:TaxCategory/cbc:Percent) or (not(cac:TaxCategory/cbc:ID = "O")) and cac:TaxCategory/cbc:Percent