Use the TypeCode (Extn) Extension to specify the code.

Italian Specification

Detail	Value
Italian Specification	`2.1.1.5.1 (TipoRitenuta)`

Element

Element	Description
`Invoice/WithholdingTaxTotal/UBLExtensions/UBLExtension/ExtensionContent/ WithholdingTaxTotalExtension/TypeCode`	Specify the Tax Type code.

Restrictions

You must use one of the following codes. These codes are not UNTDID 1001 compliant. You must add the VRBL:IT: prefix to these codes. Only the following codes are allowed:

Type code	Description
`VRBL:IT:RT01`	Witholding tax natural persons
`VRBL:IT:RT02`	Witholding corporate entities
`VRBL:IT:RT03`	INPS contribution
`VRBL:IT:RT04`	ENASARCO contribution
`VRBL:IT:RT05`	ENPAM contribution
`VRBL:IT:RT06`	Other social security contribution

Example

<ubl:Invoice>
    <!-- Code omitted for clarity -->
    <cac:WithholdingTaxTotal>
        <cec:UBLExtensions>
            <cec:UBLExtension>
                <cec:ExtensionContent>
                    <vrbl:WithholdingTaxTotalExtension>
                        <cbc:TypeCode>RT01</cbc:TypeCode>
                        <!-- Code omitted for clarity -->
                    </vrbl:WithholdingTaxTotalExtension>                            
                </cec:ExtensionContent>
            </cec:UBLExtension>
        </cec:UBLExtensions>
        <!-- Code omitted for clarity -->
    </cac:WithholdingTaxTotal>
    <!-- Code omitted for clarity -->
</ubl:Invoice>