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.

protoolkit

EU VAT Validator for WooCommerce helps stores validate VAT numbers during checkout using the official VIES SOAP service.
Features:
<ul>
<li>VAT number field at checkout</li>
<li>VIES validation via the official EU VIES SOAP API</li>
<li>Automatic reverse charge for valid B2B orders</li>
<li>VAT validation result saved on orders</li>
<li>No phone-home tracking</li>
<li>Completely free, no upsells</li>
</ul>

EU VAT Validator for WooCommerce

Validate EU VAT numbers at checkout with VIES and apply reverse charge for valid B2B orders.

VIES Validator vs EU VAT Validator for WooCommerce