My 1099 - B Section 5 does not have a cost basis. The fund sent me the summary from 2000 - 2025. The only transaction I have from the yrs 2000 - 2012 were my automatic investments thru my employer. I chose to adjust my cost basis to show my initial investment but it showed I owed more taxes. The tax advisor at Turbo advised me to put a negative number but she sounded like she was guessing. It did show I owed less taxes but is that correct? I had read that the IRS doesn't accept negative numbers.
