Originally Posted by ObadiahDogberry

The other thing to consider, AND DISCUSS WITH A REPUTABLE TAX PROFESSIONAL (I really hate that you always have to put a disclaimer in every single comment), is the tax treaty between your country of residence and the United States. Most of the times the treaties cover taxes for people who earn money in the shipping or aviation industry. The treaty with my country of residence specifically covers how taxes are handled for residents of one country, but work for a company headquartered in the other country. There are provisions for if work is done with some international shipping/flying versus strictly flying domestically within the country of the company headquarters. AGAIN, THIS IS NOT SPECIFIC ADVICE, JUST GENERAL ADVISING THAT THIS IS AN EXTREMELY COMPLEX AND CONFUSING ISSUE, AND ONE THAT REQUIRES A LOT OF KNOWLEDGE AND EXPERTISE NOT TO SCREW IT UP.