Getting the same error. Proceeds are negative on my PUT OPTION trades that I took losses on. SELLING PUT OPTIONS for income is a common strategy. If you sell a put option for $1 and the underlying stock price stays above the strike price, you are not "put" the shares (i.e., have to buy 100 shares for each option) and you keep the $1 per share premium ($100 because option trades involve 100 shares). So, you did not "buy" anything to begin the trade, you sold a put option - - no cost basis. HOWEVER, if the underlying share price is falling and you do not want to be "put" the shares (have to buy 100 shares), you can buy back the options instead - - in this case, you will have to pay more than the original $1 you sold them for. For example, buy to close for $1.50: You sold one $1 option to receive $100, and then decided to "buy to close" the option at say $1.50. So your "Net Proceeds" will be -$150 + $100 = -$50. Hence, zero cost basis AND negative $50 proceeds. Selling put options is a very common strategy to generate income. TurboTax has handled import of such trades in prior years without generating errors, today I have 31 such "errors." The software needs fixing AS SOON AS POSSIBLE.
