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I have confirmed with the IRS rules and I have correctly entered the amount via my W2 box 12 AA (which states 401k Roth, not Roth IRA). The message states that all of the contribution (27000) is over the limit. I'm over 50 and 27000 is the correct 401k limit. Now what? Will TurboTax take out additional taxes in error?
Make sure that your W-2 does not also show any amounts with codes D, E, F, S, or BB and that you have no other Form W-2 showing these or code AA. If any of these are present, you have overcontributed. If your W-2 shows an amount with code DD, make sure that you did not mistakenly select code D.
Also, if you are married filing jointly, make sure that your spouse's W-2, if any, is assigned in TurboTax to the correct spouse.
As you said, this is not a contribution to an IRA, so make sure that you have not entered the code-AA amount anywhere but in box 12 of TurboTax's W-2 form.
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