I have an indian friend back to India at the beginning of this year. However, he still has not filed his income tax yet. He asked me to do it for him. I could not reject him as he helped me a lot in work when he was here. However, I have some headache about his large amounts of stock tradings. Quite a few are "short sell", which means selling a stock before buying/covering it. Usually, doing short sell is to bet down of the market. For example, one might short 100 shares of MSFT at 60. If MSFT goes down to 50, then one could cover it to gain 100 x (60 - 50) = $1000. On the other hand, if MSFT goes up to 70, then one covers it. Then one will lose $1000. It is just opposite of long which is buy and then sell. The problem is that the paper shows that one get $6000 when one shorts MSFT. If one does not cover at the end of the year. Should one report this $6000. Anyone has such experience, please share with me. Thanks!