I have also already paid Turbotax only to find out that I can't efile my Massachusetts return.
It's unbelievable that their official stance has been to tell people "the IRS no longer allows negative numbers in the proceeds column" which is completely false and can be EASILY debunked by checking the IRS website. For MA residents, we need to record every trade, and altering information on our 1099-B so that it differs from what was reported by the broker is a surefire way to trigger an audit. PLEASE PLEASE PLEASE fix this or I swear to god I'm never using this software again.
