Do I have to pay taxes in both states if I buy a car from a different state than the one I live in?

I am looking to buy a used car. The only ones that I can find that are nice or are in my price range is from the neighboring state. I currently live in New Jersey but keep seeing ads for nice cars in NY. I don't really know the laws that well but the NJ DMV site suggests I call them. I really... show more I am looking to buy a used car. The only ones that I can find that are nice or are in my price range is from the neighboring state.

I currently live in New Jersey but keep seeing ads for nice cars in NY.

I don't really know the laws that well but the NJ DMV site suggests I call them. I really don't want to be put on hold for a long time and not get a real answer which I can expect from NJDMV.
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