Adjusted Gross Income (AGI) can't be the only thing that's incorrect. AGI is the result of adding up various income items and subtracting adjustments. For the AGI to be wrong, one or more of the income or adjustment figures has to be wrong. Before you file a claim, make sure you understand where the root cause of the error is. If something was entered incorrectly, TurboTax is going to reject the claim.
