/ubl:Invoice/cac:TaxTotal[cbc:TaxAmount/@currencyID = ../cbc:DocumentCurrencyCode]/cac:TaxSubtotal/cec:UBLExtensions/cec:UBLExtension

Invoice Tax Subtotal Extension Group

Context ID INV1039
Cardinality 1..n
Usage -

Child elements

Cardinality Usage Description Element
1..1 - Invoice Tax Subtotal Extension Content cec:ExtensionContent