| If you were present in the U.S. for more than 183 days during the year, then you need to include the capital gains on your Form 1040NR. For years that you are not present in the U.S. for more than 183 days, then you, as a nonresident alien, will not be taxed in the US on your capital gains. In addition, interest earned during periods when you are a nonresident (and you are not engaged in a U.S. trade or business) will either be exempt from U.S. tax or the only tax due will be withheld from interest paid to you. |