Use the PartyIdentification/ID[@schemeID='210'] element and attribute to specify the value.

Italian Specification

Detail	Value
Italian Specification	`1.3.1.2 (CodiceFiscale)`

Elements

Use the following elements if the Tax Representative is an organization:

Element	Description
`/Invoice/TaxRepresentativeParty/Party/PartyIdentification/ID`	Specify the fiscal code.
`Invoice/TaxRepresentativeParty/Party/PartyIdentification/ID[@schemeID='210']`	Specify `0210` as the value for the `@schemeID` attribute.

Restrictions

You can only use this element for Italian Supplier's Tax Representative, who must also be Italian.
You must use 0210 as the @schemeID attribute of the ID element. This number is from the ISO 6523 ICD list.

Example

<ubl:Invoice>
    <cac:TaxRepresentativeParty>
        <!-- Code omitted for clarity -->
        <cac:Party>
            <!-- Code omitted for clarity -->
            <cac:PartyIdentification>
                <cbc:ID schemeID="0210">98765432101</cbc:ID>
            </cac:PartyIdentification>
            <!-- Code omitted for clarity -->
        </cac:Party>
    </cac:TaxRepresentativeParty>
</ubl:Invoice>