With Tax Exempt for WooCommerce, you can prevent some customers from paying tax when they buy something from your store. If you want to claim the tax exemption, you have a few options:
Certain roles can be set up in WordPress so that they don’t have to pay taxes.
You can allow people to choose not to pay tax on the checkout page. After that, you can ask users to upload proof (which you can verify before actually exempting them).
The WordPress backend allows you to manually grant tax exemptions to certain users.