So are you taking the year end totals off of the 1099B - the gross cost and sales #'s?
Also did Green list every trade that you did on form 4797 if your mark to market?
No its one line accounting .As someone said the Irs only cares about the taxable profit or loss. I used Green back in the late 90's for a few yrs and then moved to another accountant 1/3 his price . The key is the footnotes that explain what your doing and your an mtm 4797 mtm trader and your not subject to ss taxes etc. You spend most of your time trading trying to capture daily moves etc