I always buy my cars out of state now, but I'm ashamed to say that I don't even remember how the tax thing works. It seems like I paid Iowa taxes when I got back, but I'm not positive. Props to you for going out of state though to find something. The lack of competition in Iowa is literally a joke and I've always saved a good $3,000 to $3,500 by being willing to drive somewhere to get a car where there is actually competition. For instance, I made my last purchase in Chicago of a certified used Acura where I found 5 different vehicles spread throughout the city of the exact car I wanted (miles, color, interior... etc). I then proceeded to go one by one in checking them out with the intention to buy one of them. Shoot, it is easy to have confidence you'll find one you like when the sticker price is already a good $3,000 under any equivalent car in Iowa. Iowa dealers have got too used to the idea of being the only show in town. If you don't believe me in the pricing, just take a look at cars.com and run some comparisons yourself. It is truly a joke.