https://www.irs.gov/individuals/understanding-your-cp11-notice
Read the notice very carefully---it should tell you what the IRS changed. The notice should also include a phone number that you can call to ask questions or to discuss the notice if you disagree with the change.
TurboTax does not get any information from the IRS after you file your tax return, so no one at TT knows what the IRS changed.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
