Well, I am assuming that the IRS doesn't believe most people's Scd D if they are serious about adding this new feature. What they should do then is force the brokers to provide a sch D for the year that includes past purchases from years ago. The only problem with that is if you bought something through another broker -there still would be no way for the present broker to know exactly what you are selling those positions against. They should just squash the whole idea, imo. If I were dictator of this country I wouldn't allow it! lol