[alexm]

i picked up my car from a dealer in pa, he gave me temp pa tags until my new PA title arrived no tax paid. When i had the title in hand just goto dmv you will pay the tax there while changing title and registering your car. The dealer is able to charge you nj tax etc its depends on the dealer my '06 sonata was bought in pa and because it was new they did all the taxes etc.....

hope that helps