Alltrikes

I am purchasing a used trike from Montana. I am a resident of Oregon, do I have to pay any taxes on the purchase? Since we don't have any taxes in Oregon.

The reason I ask this is because when I purchased my first trike (sold now) I was a resident of Idaho and living in Idaho and I purchased it from Oregon but I had received documents from Idaho state that I needed to pay taxes on it, which I did.

Now that I am a resident of Oregon, how would that change?

Anyone? any ideas.

Regards.

Rizzy