Get your taxes done using TurboTax

Thanks for your quick response!  I'm wondering if I need to connect with the brokerage company to question their math.  I just have a basic knowledge of taxes and don't do anything out of the ordinary (for me), like selling land or doing investing on my own.  I only have the one 1099-B form from the brokerage company to look at and use its figures to complete the investment portion of my taxes.  I thought everything should be contained in that 1099-B I received.  So I don't understand how the long term capital gains number would jump $3100 in Turbo Tax from what's reported on the 1099-B. I hope this makes sense!