CP05 A letter..what should I do?

[marybowman510193]

Hi,  

I just received a CP05A letter from IRS. I don't understand why they sent me this letter? Do I need to worry about this? It looks like I have to send them a few documents to verify my income. Do I need to send all the documents that I have on hand to them?

Thanks for your help!

[SweetieJean]

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