So if your timeframe has 3 orders, and 1 has taxes, all will show the tax columns. However if all three orders have no taxes, no tax column is displayed.
Ok, that is what I needed to know. Thanks!

You went wrong with your tax setup, since it would seem that taxes aren't being charged on your orders in the first place. A quick look at your order details for one of these orders would confirm. Hit the FAQ section and look up the tax documents.
Or that we did not sell to anyone in CA that week - I hope that is the problem, certainly possible. Will track it down and pay the tax folks.
THANK YOU!!