You can't get the program to accept a blank Date Acquired because it's not allowed to be blank on the tax return. You have to enter the date that you acquired the investment. If you don't know the date, use your best estimate, as long as it properly reflects whether the sale was short-term or long-term. If you sold an investment that you purchased in multiple lots at different times, you can enter the word Various instead of a specific date. If you inherited the investment, enter the word Inherited. If you received the investment as a gift, the Date Acquired is the date that it was acquired by the person who gave it to you.
