[ibr-tdd-67] – The cac:TaxSubtotal (BG-23) element MUST NOT contain elements other than cbc:TaxableAmount (BT-116), cbc:TaxAmount (BT-117), and cac:TaxCategory.
ibr-tdd-67/pxs:TaxData/pxs:ReportedTransaction/pxs:ReportedDocument/cac:TaxTotal/cac:TaxSubtotalcount(*[not(self::cbc:TaxableAmount or self::cbc:TaxAmount or self::cac:TaxCategory)]) = 0