2008 Tax Overpayment?

Ok so heres the situation... Several weeks ago I filed my taxes using turbo tax. everything seemed in order my adjusted gross income on return was a little over 10k, and turbo tax said i was due a federal refund of $607(minus the fees of using turbo tax). Since then I have already received my refund. But yesterday I received a letter from the IRS saying they changed my estimated tax total and that i am due a refund. It says Due to These Changes, I am due a refund of $576. Even tho i have already received a tax refund? On the tax statement they sent me it says Overpayment of Taxes: $576 Amount of Refund- If you Owe No Other Taxes: $576. Does this mean I overpaid THEM? If so why would they send me a 2210 form along with it? 2210 form is: Underpayment of Tax By Individuals, Estates, and Trusts. This makes no sense to me. Can Anybody help me make some sense of this? Additional info: I live in Illinois. I filed a 1040A form The notice they sent me is called a CP24. How do I go About handling this?

Public Comments

1. My bet is you did not claim your stimulus, but why not ask the box? After all, you trusted it to do your taxes!
2. Form 2210 is used if you underpaid for any part of the year, even if you overpaid for the year as a whole. The IRS may have concluded that you owed a $31 penalty for underpaying for part of the year, even if you overpaid $607 for the year as a whole. In this case you have the option to either (a) return $31 of the refund, or (b) complete the Form 2210 to demonstrate that you paid a sufficient amount for each part of the year.