After you file
If you uploaded summary information from an IRS form 1099-B, you need to forward to the IRS a copy of the IRS form 1099-B.
In TurboTax Online, a .PDF of the IRS form 1099-B is uploaded into the online software.
In TurboTax Desktop, a copy of the IRS form 1099-B must be mailed to the IRS attached to an IRS form 8453.
Which version of TurboTax did you use?
If you used TurboTax Desktop, do not amend your tax return. Review the mailing instructions and mail the IRS form 1099-B to the IRS.
