/ubl:Invoice/cac:TaxTotal[cbc:TaxAmount/@currencyID = ../cbc:DocumentCurrencyCode]/cbc:TaxAmount/@currencyID

Invoice Tax Amount Currency Code

Switzerland | VRBL-Invoice-CH-YellowBill-3p0
Context ID INV1035
Usage M

Description

Syntax required attribute, value must equal invoice document currency (IBT-005).