<prompt> Human: The title gives you all the key details. Heres the rest:I received a CP 2000 notice today from the IRS stating that they are proposing a change in my 2015 Form 1040A in the amount of 2,780.On page 2 of this notice, it states the changes the IRS is proposing to my 2015 tax return.THe IRS is proposing that my taxable wages should have been 24,859 vs the 21,945 I reported. That part may be accurate. I cant find my 2015 W2s, but I worked a couple different places, including one for only about 6 weeks, so I might have forgotten to include that 6 weeks of pay. That isnt a huge deal.The next line states Retirement income Taxable and ;osts 12,906.The net total then would be 15,820.Ive never made more than about 24,000 a year. Ive spent virtually my entire adult life living paycheck to paycheck, and Ive never opened any retirement accounts, and to the best of my knowledge, none has been opened in my name. Ive never received any disbursements from a retirement account either, on the account HAH! of me not having a retirement account to begin with.Contained within the notice are instructions with how to respond if I disagree with their proposed correction. However, how the hell do I show that Ive never had a retirement account? I feel like Im going to have to try to prove a negative, which seems like a really difficult task, yknow?So, personal finance, what the hell do I do here? Why does the IRS think I received almost 13k in Retirement income I just turned 30 this past year, by the way...Im not retired, beyond Morgan Stanley saying they payed me money? Is there a way for me to show that this is incorrect? Should I try to negotiate the total bill down? Help me, Obi Wan Personal Finance, youre my only hope!  <response>: Time to pull your credit report and make sure that you are the only one using your social security number 