odoo16/addons/l10n_it_edi_withholding/data/account_tax_group_data.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <data noupdate="1">
        <record id="tax_group_pension_fund" model="account.tax.group">
            <field name="name">Fondi Pensione</field>
            <field name="sequence">0</field>
            <field name="country_id" ref="base.it"/>
            <field name="preceding_subtotal">Fondi Pensione Esclusi</field>
        </record>
        <record id="tax_group_enasarco" model="account.tax.group">
            <field name="name">Enasarco</field>
            <field name="sequence">999</field>
            <field name="country_id" ref="base.it"/>
            <field name="preceding_subtotal">ENASARCO Escluso</field>
        </record>
        <record id="tax_group_withholding" model="account.tax.group">
            <field name="name">Ritenute</field>
            <field name="sequence">1000</field>
            <field name="country_id" ref="base.it"/>
            <field name="preceding_subtotal">Totale Ritenute Escluse</field>
        </record>
    </data>
</odoo>