If you have a 1099B for sales make sure you are only paying tax on the just the Gain and you can deduct any losses (from actual sales). So make sure you enter your cost to figure the gain or loss.
If you have a net loss for the year you can only deduct 3,000 (1,500 MFS) max on your tax return. The rest you have to carryover to next year. You have to report the carryover every year until it's used up. You can't skip a year.
