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

Invoice Tax Amount Currency Code

Germany | VRBL-Invoice-DE-XRechnung-3p0
Context ID INV1035
Usage M
Format ISO 4217 alpha-3
Example Value EUR
Final Format Path /ubl:Invoice/cac:TaxTotal[cbc:TaxAmount/@currencyID = ../cbc:DocumentCurrencyCode]/cbc:TaxAmount/@currencyID

Description

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