For clarity, whoever can help here, the OP is well aware this conversion will most likely put them in a higher tax bracket. The "penalty" they are talking about is the underpayment penalty for not having paid enough in estimated taxes throughout the year. They should not have to pay this for this specific situation. I can't see in TT 2017 how to avoid the program figuring the penalty. It's gotta be doable, as people do these conversions all the time, and have been for years.
