Validate EU business VAT numbers live against VIES and apply reverse-charge exemption automatically in the cart. Works without Shopify Plus. Free to start.

• Works without Shopify Plus — validates in the cart, not just checkout
• Removes the exact VAT rate applied per line, not a guessed standard rate
• Every check writes a VIES consultation reference onto the order
• Accepts VAT numbers with spaces, dots, or hyphens automatically
• Never falsely rejects a customer when VIES is temporarily down