Thanks. I have not made the "mark to market" election yet. My problem is that I have several 1099B - only one of the brokerage accounts is specific to trading (business income). Rest are all personal investment income. Line 16 in Schedule D shows both trader and investor transactions, how do I separate them out using Turbotax? I cannot enter 1099B under "Business income", neither can I specify under income, that this particular 1099B is from business/ trading
