Do active military personnel stationed in Norfolk, VA (currently
deployed) have to pay automobile sales tax on a purchase of a new
automobile? Do they have to pay when they register the vehicle?  Where
should they purchase in order to avoid the most tax?  ( An answer by
8PM EST on 10/27 would be very appreciated.)

I am not in the military but that would be a question your CO should
be able to answer. I don't think you can register your new car in any
county but the one you reside in and then you pay the sales tax for
that county. It doesn't matter where you buy a car, it matters which
county you live in for some states. I think this varies state to
state. As far as paying sales tax for the vehicle to the dealer, we
all have to pay our taxes, deployed or not. That's a sales tax you pay
to the state you buy the car in, not the federal government.

Check with your CO. He has your rules and regs and if he doesn't know,
ask the car dealer. They would know.