Inconsistent sales tax for in-game purchase

sales tax isn't a hidden fee

It has always been applied at point of purchase

This is like any other service

One it's the law you pay sales tax even on Internet purchases

Two it's not showing because it's together

So if you a game it's already there

Included in the final price so purchase of said game total = your game price and sales tax together

The tax is entirely dependent on your State/Countries Sales Tax and gifts have no added taxes aside from your usual sales tax. You can google your locations sales tax and calculate for yourself

here or go in like you're purchasing the game on your system and see how much it'll cost since it shows how much it'll cost with taxes.

Because your state does not collect sales tax does not mean that others do not. If your state collects sales tax, MS collects sales tax on your online purchase. The only current exception is purchases made with points because it is assumed one paid taxes
on the points at time of purchase. Sony does the same thing on PSN.

Most likely you are now paying sales tax. Unless you live in a state with no sales tax, most states have pushed for sales taxes to be applied to online purchases because of the loss of revenue.

Just to clarify, the tax should be equal to the normal tax applied to purchases in your billing region. For example, my local state sales tax is 9.5%. That will be applied to any purchases I make on Xbox Live, because my billing information is located within
the region that the sales tax applies to.