odoo16/addons/l10n_bg/data/account_tax_group_data.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <data>
        <record id="tax_group_vat_20" model="account.tax.group">
            <field name="name">20% VAT</field>
            <field name="country_id" ref="base.bg"/>
        </record>

        <record id="tax_group_vat_9" model="account.tax.group">
            <field name="name">9% VAT</field>
            <field name="country_id" ref="base.bg"/>
        </record>

        <record id="tax_group_vat_0" model="account.tax.group">
            <field name="name">0% VAT</field>
            <field name="country_id" ref="base.bg"/>
        </record>
    </data>
</odoo>