EU VAT Number is compatible with the new Cart and Checkout blocks — a customizable, conversion-optimized checkout experience available in beta in WooCommerce core.
Allow EU businesses with a valid VAT number the choice of paying tax at your store
This extension provides your checkout with a field to collect and validate a customer’s EU VAT number if they have one. Upon entering a valid VAT number, the business will not be charged VAT at your store.
The validation function uses the handy VIES.