How do I calculate taxable earnings on unqualified 529 withdrawal?

[AVL_Paul]

I recently realized I need to pay taxes on a portion of my 529 withdrawals for my daughter that are unqualified.   Unfortunately, i had them paid to my bank account (even though I transferred them to her immediately afterwards) so they go against by taxes, not hers.  Since the amount is less than her scholarship amount, we don't owe the 10% penalty.  Two questions:  do the earnings count as additonal gross income (e.g. taxed at my tax rate) or capital gains?  I had assumed capital gains?  Second, how do I enter into Turbotax amendment so I don't pay the 10% fee?

[tagteam]

How do I contact TurboTax? (intuit.com)