When I bought my first plane four years ago, through a broker in my home state of Illinois, I was able to escape the five-digit state sales tax by registering the plane to my second home, in another state. Now I live in the second home, having sold the first, and am thinking about another airplane. There must be good legal options for minimizing taxes on buying and owning. Is there a book, web site, or other comprehensive source of information about what sales and property taxes the various states charge? Any words of wisdom from personal experience?