Calculate TAX on checkout page

[relieverr]

Hi,

I want to show my prices excl VAT, now I managed to do that but whenever I get at the checkout page it shows the price incl VAT. I need that price to be excl VAT and the VAT price added on that. Because I have an app to add extra options they can choose with the product, I am giving the price of those options also excl VAT. Now I want the end price to show without VAT and then on the checkout page the VAT calculated on the end price.

Is there a way to get this done?