Quote from Froglet:
then talk to a REAL CPA!
The operative term... 100% agreement.
I have a 4 step process at tax time
#1, Reconcile my trade records with Tradelog
#2, Send reconciled trade records to accountant along with 1098's, 1099's, 1256's, etc...
#3, Sign the efile authorization form 8879 provided by him
#4, Relax
Investopedia Link to Short sell against the Box http://www.investopedia.com/terms/s/sellagainstthebox.asp#axzz20FVcDEiJ