Form 8615 calculated incorrectly - Line 9 as calculated by TurboTax was incorrect. Note that this was verified by our tax accountants as I had them review the from when it generated almost $13000 of tax - on wages of $11,000 and investment income of $4000.
TurboTax is normally a simple and great experience. However this went from being a free service to multiple fees taking far too much out of the refund.