TurboTax wants to know if the stock was inherited. Box 1b on my 1099-B has "various" for the date acquired, so I can't tell if the stock was purchased before or after I inherited this investment account.
Your IRS form 1099-B reports a sale of a stock. You inherited a portion of this stock portfolio and you purchased other portions of this stock portfolio.
The inherited portion of the stock portfolio will be considered long-term basis. The portion that you purchased may be long-term investments or short-term investments based upon the date of purchase and date of sale. Short-term investments are owned one year or less. Long-term investments are held more than one year.
You may need to contact your broker to discern the when you acquired the block of stock that was sold.