Validate EU VAT IDs in your WordPress forms. Supports Contact Form 7, WPForms, and Fluent Forms out of the box.

Stephan

<p><strong>Vatigo – EU VAT Validator</strong> adds EU VAT ID validation to your WordPress forms with zero configuration. Install, activate, done.</p>
<h4>Features</h4>
<ul>
<li>Pattern validation for all <strong>27 EU member states</strong></li>
<li>Works with <strong>Contact Form 7</strong>, <strong>WPForms</strong>, and <strong>Fluent Forms</strong></li>
<li>Real-time inline feedback while the user types (WPForms)</li>
<li>Server-side validation on every submission</li>
<li>Custom error messages via settings page</li>
<li>Clean settings page showing active integrations and hooks used</li>
<li>Extensible: register custom integrations for any other form plugin</li>
<li>No external API calls – fully offline (free version)</li>
<li>GDPR-friendly: no personal data stored or transmitted</li>
</ul>
<h4>Supported Countries</h4>
<p>AT, BE, BG, CY, CZ, DE, DK, EE, EL, ES, FI, FR, HR, HU, IE, IT, LT, LU, LV, MT, NL, PL, PT, RO, SE, SI, SK</p>
<h4>Usage with Contact Form 7</h4>
<p>Add <code>[uid_vat uid-field]</code> or <code>[uid_vat* uid-field]</code> (required) to your form template.</p>
<p>Example with placeholder:</p>
<pre><code>[uid_vat* eu-vat-id placeholder "e.g. ATU12345678"]
</code></pre>
<h4>Usage with WPForms</h4>
<p>Drag the <strong>EU VAT ID</strong> field from the field panel into your form. The field supports required validation, custom labels, placeholder text, and real-time inline feedback while the user types.</p>
<h4>Usage with Fluent Forms</h4>
<p>Drag the <strong>EU VAT ID</strong> field from the General Fields section into your form.</p>
<h4>Styling the inline feedback</h4>
<p>WPForms shows real-time validation feedback next to the field. To hide it, add this to your theme’s CSS:</p>
<pre><code>.vatigo-feedback { display: none; }
</code></pre>
<h4>For Developers</h4>
<p>Register integrations for any other form plugin:</p>
<pre><code>add_action( 'vatigo_register_integrations', function( $manager ) {
    $manager->register( new My_Custom_Integration() );
} );
</code></pre>
<p>Your class must extend <code>Vatigo_Integration_Base</code> and implement all abstract methods.</p>


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