Is it Notice CP5071 ?
If so, do what the letter tells you to do.
This is generally good advice for any IRS communication.
@08jeepn08
TurboTax gets no information from the IRS after you file your tax return, so no one at TT knows the IRS is sending you a letter or what the letter says. Wait until you have the letter-----if you do not understand the letter, post back for help.