How can I limit applicable tax to only display in the "confirm" step of check out

This store is based out of Kentucky so since sales tax is only applicable to those who order from Kentucky. If a customer who is not signed-in orders then in the first step of check out (Cart Review) it shows tax because it doesn't have and hasn't asked yet the shipping info as its step 2. Then in the finial (Confirm) step it takes the shipping info into account and adjusts accordingly. I just need tax to not show up on the "Cart Review" step and only show on the "Confirm" step if applicable.