Problems With Entering Products Excluding Taxes

So the latest storefront we have live enters products without VAT as on the previous cart to match up with their business software.

I have previously entered with taxes but now despite changing the setting so it adds taxes it seems it still mainly shows the excluding tax price everywhere on the category pages, product pages (apart from inc VAt tax in small brackets) data feeds, microdata etc.

So we have to modify all of this to suit our needs and show the inclusive of tax price as the main price?

I think that the answer in your question is yes.