The 40% tax goes into effect October 1st. If you are going to claim the purchase, the total tax is 48.4%. You need to pay the 6% sales/use tax on top of the 40% taxed purchase price. I know you are supposed to pay the 6% on shipping too. I have not read or heard any clarification if you have to pay the 40% tax on shipping.
Stock up!
Stock up!