How to get VAT information from customers

Hi I have a question regarding the VAT number, I am setting up a B2B store with the new customer accounts that means there is not registration form.

I am wondering how can I let the customer fill his VAT number and get this value to the backend VAT field

if that is not possible, what would be the best way to handle this.
My client doesn’t want a customer to register without a valid vat number and they still want to use the latest customer account.

Hi @ginthozan

You could create a customer account extension on the account page which would have a field for customers to add their VAT number, and that could be stored as a metafield?

Hi @ginthozan,

If you are still looking for a solution. We launched an app for this a few months ago: Taxify: VAT Dual Price Display - B2B: show VAT‑inclusive & exclusive prices & EU VAT validation | Shopify App Store

Customers will be able to manage their VAT ID from their profile page.