I'm really new to this, so please bear with me. I want to set up an online retailer. My company is registered in Sweden. Half of my products are made in the U.S. and the other half is made in China. My warehouse is in the U.S. (www.efulfillmentservice.com).

1. Who do I have to pay tax to and who do my customers have to pay tax to? And, are the taxes I have to pay vs. the ones my customers have to pay the same kind of taxes?

2. Is the taxation gonna be different with the products made in the U.S. from the ones made in China?

3. Why do some say I can only reclaim VAT via certain shipping companies like DHL or FedEx?

4. If my warehouse were to be in a free trade zone, would that affect any of the above?

Thanks a lot guys!