Tax Exempt Customer Groups (Invoice Without Tax) Module v1.3.7

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.
Prices can still be displayed with ot without taxes by configuring customer group settings, but checkouts/invoices will be tax-exempted.
Labels of "tax.incl." and "tax.excl." will not be displayed for tax-exempted customer groups.

While the customer can see the tax included and/or tax excluded prices, they will be tax exempted if they are beloged to a qualified customer group.