If you have had US tax withheld in the US at the flat 30% non resident rate, there are many circumstances whereby you can claim back most if not all of this tax from the US by filing a 1040NR US tax return. The US will either tax you at graduated income tax rates (like a local person) or at a flat 30% withholding rate, which in most cases, where a tax treaty exists with the US, you can reduce or eliminate the 30% tax withheld (to a reduced rate or remove it entirely). If you