[ibr-tdd-65] – The cac:TaxTotal element MUST NOT contain elements other than cbc:TaxAmount (BT-110, BT-111) and cac:TaxSubtotal (BG-23).
ibr-tdd-65/pxs:TaxData/pxs:ReportedTransaction/pxs:ReportedDocument/cac:TaxTotalcount(*[not(self::cbc:TaxAmount or self::cac:TaxSubtotal)]) = 0