I am trying to set the tax percentage for Greece but it only shows settings for the U.S.
Here's the docs links for setting your selling areas as you wish - they are are configurable
http://www.abantecart.com/ecommerce-documentation/admin-user-manual/system/localization (http://www.abantecart.com/ecommerce-documentation/admin-user-manual/system/localization)
Thanks. :)