TurboTax didn't tell me I was paying an underpayment penalty
After filing electronically, I discovered on my printed 1040 that TurboTax had calculated a $28 underpayment penalty. I am almost certain I would not have owed this penalty (or it would have been much smaller) if TurboTax had notified me of the penalty and asked me whether I wanted to annualize to reduce it. (It never did.) My income was uneven through the year, with most coming in the last quarter. I paid estimated taxes in November to avoid penalties. Can I amend a return only to recalculate the penalty?