Toggling VAT for prices

Hello,

I need the client to be able to switch between displaying prices with and without VAT. Which are the best practises for this? Do I work with switching price lists (which I guess would have repercussions for other users), or exchange the prices on the front end? The feature should work akin to how dustin.se works, so a page reload is fine.

Litium version:7

On the Cart you have a setting IncludeVAT that tells if the prices should be included or excluded VAT. To access the cart you should use the Litium.Foundation.Modules.ECommerce.ShoppingCarts.CartAccessor.