If extraordinary tax condition is required. Specification of the applicable tax provision i.e. ?Zero-rated? or ?Domestic delivery, invoice is subject to local VAT?. Else check with your local VAT legislation

invoic_Examples
 <property name="taxProvision">Reverse Charge</property> 
invoic_XPATH

/b24Message/invoice/property[@name="taxProvision"]

invoic_Required
No
invoic_Type
Text
invoic_Sort
4200