Hi, i set my shop to show prices excluded VAT, than in
product.tpl
insert
{convertPrice price=$productPrice * 1.2} {l s='tax incl.'}
1.2 is tax in my country
if your shop showing price included VAT insert this:
{convertPrice price=$productPrice / 1.2} {l s='tax excl.'}
you can format it by inserting span tag
<span>{convertPrice price=$productPrice / 1.2} {l s='tax excl.'}</span>
i dont know in smarty which is vat tag so i use numbers