WooCommerce EU VAT Number

Allow valid EU businesses 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.

Demo Link : https://woocommerce.com/products/eu-vat-number/

Summary from Demo
The most customizable eCommerce platform for building your online business. Get started today for free.
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.
WooCommerce - the most customizable eCommerce platform for building your online business.