marekma

The plugin allow you to validate your clients VAT Number using the online VIES service from Agenzia delle Entrate.
If you don’t currently have a VAT Number field you can easily add one from the settings menu. If you already have one just specify the field ID and the validation will take place on your existing field.
For more information about VIES see <a href="https://telematici.agenziaentrate.gov.it/VerificaPIVA/Scegli.jsp" rel="nofollow ugc">https://telematici.agenziaentrate.gov.it/VerificaPIVA/Scegli.jsp</a>
Based on <a href="https://github.com/pH-7/eu-vat-validator" rel="nofollow ugc">eu-vat-validator</a>: a simple and clean PHP library that validates EU VAT registration numbers against the central ec.europa.eu database.

VIES Validator

Add a VAT Number (Partita IVA) field to Woocommerce checkout and validate it using the VIES API service from Agenzia delle Entrate.

dot4all

Fiscalità ITA Light for WooCommerce adds the Italian fiscal fields required at checkout and the logic for visibility, requirement, and invoicing.
<h3>Main features</h3>
<ul>
<li>Custom fields: VAT (P.IVA), Tax Code (Codice Fiscale), SDI Code, PEC, Customer type (Private / Company / Freelancer).</li>
<li>Automatically shows/hides fields based on customer type and country (with “Limit to Italy” option).</li>
<li>VIES validation with cache, retry, and fallback (checkVatApprox). 
If valid, VAT is removed automatically, including Checkout Blocks (Store API).</li>
<li>Compatible with WooCommerce PDF Invoices & Packing Slips (separate numbering for receipts).</li>
<li>“VAT not applied (VIES)” badge in checkout, thank you page, emails, and admin.</li>
<li>VIES column in the orders list and visual tag in the order view.</li>
<li>Fully compatible with High Performance Order Storage (HPOS).</li>
</ul>
<h3>Settings</h3>
Find settings in WooCommerce → Fiscalità ITA: 
– Enable/require Italian fiscal fields. 
– Enable/disable VIES validation and set your requester VAT. 
– Configure prefixes and counters for PDF receipts.
<h3>Compatibility</h3>
<ul>
<li>WooCommerce 7.0+ (tested up to 10.3.3)</li>
<li>Classic checkout and Checkout Blocks (Store API)</li>
<li>PHP 7.4+</li>
<li>WPML / Polylang / Loco Translate (tested)</li>
</ul>
<h3>External services</h3>
This plugin connects to the EU VIES VAT validation web service provided by the European Commission (VIES) to validate EU VAT numbers and apply VAT exemption for eligible B2B customers.
Data sent: country code and VAT number entered at checkout; if configured, the requester country code and requester VAT number. 
When: only when VIES validation is enabled and the customer is checking out with a VAT number.
Service terms/legal disclaimer: https://european-union.europa.eu/legal-notice_uk 
Privacy policy: https://commission.europa.eu/privacy-policy-websites-managed-european-commission_en
<h3>Credits</h3>
Developed by dot4all Srl 
Support: https://dot4all.it/contatti/

Fiscalità ITA Light

Italian fiscal fields for WooCommerce: VAT, tax code, SDI/PEC, customer type, optional VIES validation.

VIES Validator vs Fiscalità ITA Light