Tax Exempt Customer Groups (Invoice Without Tax) 1.4.0

With the help of this module, you will be able to determine the customer groups which are tax exempted.
Provide privileges to your selected customers or customer groups.
Do not deal with custom code changes to issue tax-free invoices and sales.

Features:

• Tax exemption for selected customer groups.
• If the customer is belonged to any of the selected customer groups, they will be tax exempted.
• Easy and one-step configuration.

More detail link
https://www.megventure.com/prestashop-modules/48-tax-exempt-customer-groups.html