Aero/the Funnel Builder Checkout provides compatibility with WooCommerce EU VAT Assistant By Aelia.
If you are already using WooCommerce EU VAT Assistant on your store and want to display VAT Number field on your Checkout page also, then follow these steps below:
Step 1: Click on “Form” tab of your Checkout page. Pick “VAT Number” field from “Advanced Fields” Category and drop in the section where you want to display the VAT Number field.
Step 2: If you wish to change VAT Number field details then click on the "VAT Number" field and edit field details.
Step 3: Click on "Update" button to save the changes and Save the form also
Preview of VAT field :