There are two steps which must be followed in order to show the products' prices without the tax.
First, open the Joomla administrator area->Components->VirtueMart->Admin-> Configuration->Global tab. Make sure that the Show "(including XX% tax)" when applicable? option is not checked.
Then navigate to the Joomla administrator area->Components->VirtueMart->Shopper-> List Shopper Groups. Click on the shopper group(s) which you are using and deselect Show Prices including tax? check box.
You need help with a shopping cart? hostlantern is specialized in eCommerce hosting and provides expert support for a large number of shopping carts. Check out our shopping cart hosting services!