Add a VAT number field to WooCommerce checkout with per-country validation, and mark trusted B2B customers as tax exempt.

Validate EU VAT numbers in VIES, apply 0% VAT (reverse charge) correctly, and add wholesale prices, customer groups, order minimums and quotes.

Validate EU VAT numbers (UID, USt-IdNr., BTW, TVA) in Contact Form 7, WPForms and Fluent Forms. All 27 EU states, offline, GDPR-friendly.