The day after using TurboTax Desktop to eFile my Fed and State returns, I realized I had neglected to include estimated tax payments made during the year, so that TT computed much higher underpayment penalties scheduled for immediate ACH payment. So I used TT Desktop to file amended return 1040-X and the corresponding State form. I included in 1040-X Part II, Explanation of Changes, that I wanted a refund for my omitted estimated tax payments plus the excess underpayment penalty I was paying electronically with my original 1040 return. I felt I needed to add this explanation because Line 22 of the 1040-X requested only a refund for the omitted Estimated Tax payments, but not my overpayment of the Underpayment Penalty.
As I wait up to 20 weeks for IRS to process my Amended Return, I wonder if my 1040-X explanation will be sufficient to obtain a refund that includes both the overpayment of tax and the overpayment of the penalty.
