This is the first year that I have received a supplement from E*TRADE with transactions on it. My 1099-B shows a $0 cost basis for my RSUs that I sold this year. The Supplement shows a different cost basis, and it changes the tax due, it seems.
I work at Apple, if that helps answer the question. There does not seem to be a solid answer on if you use the adjusted cost basis in TurboTax to properly file.
Any help would be appreciated.