go to do the tax amendment form , you could fix your mistake up to 3 years,
even though you lost money, you still have to report it, otherwise, IRS only
look at your capital gain, For instance: If you have 1000 dollars, you
buy a stock and sell it for 980, you lost 20 dollars, so some people might
think they don't have to fill the tax at all. But the IRS only look at 980
gain, but they didn't look at the 1000 dollars you put in because the share
holder only report what you gain, so if you are not file the tax, under your
record, instead -20 dollars, you will have 980 dollars income that is not
taxing.