Selling in the US from Europe

[giaall-30]

Hello,

I am writing to know if anybody has ever sold some items in the US from Europe as a private individual.

I own some collectibles and in the future I would like to try to sell them in the US.

In particular, I would appreciate to know if there are requirements that one needs to comply with, especially related to sales taxes /duties that the seller needs to pay to the US authorities. For instance, if I sell in Germany, the sale of the object is tax free as long as I own the object since more than 1 year. If I sell within the year following the moment in which I purchased the object, I have to declare the sale proceed in the income statement (done to the fiscal authority), and taxes are payable on the profit made (on the difference between the sale price and the purchase price).  

In other words, if I sell something in the US, how can I be sure that the revenues from my sale are tax free or that I should declare these revenues to the US fiscal authority? to the best of my knowledge import duties are payable by the buyer, but I would appreciate to know if also some taxes apply to the seller.

Maybe somebody can suggest a website where I can find this information?

Thank you,

regards,