What if the IRS was wrong? Did you report your 1099 on Turbotax? I have received a total of three CP2000 forms now, and the IRS computer was wrong every time. The first was for 2008; I was frightened and just sent them a check. Two years later they returned my money, saying they found the payment. I know I had paid it in the first place, but didn't have the time or information to fight it. I also received a CP2000 for Tax Year 2014; I researched on the web and found a Forbes magazine article about how these notices are computer-generated, are often incorrect, and how to dispute them. After sending my letter and documentation by fax and trackable mail, I received the response that we owed nothing. I'm hoping for the same result this time for TY 2016, where the CP2000 claimed I didn't report 1099 disability retirement income. I found the worksheet in Turbotax and sent it with a copy of the 1099-R along with the other paperwork. I hope you didn't pay money to the IRS unnecessarily!
