In the search box enter UNDERPAYMENT PENALTY and click the search button. Wait a bit, then click the "jump to" link. Then you can work it through to show your income each quarter. When given the option to "annualize" your income, select YES that you want that option, and work it through. With a substantially higher figure for the fourth quarter combined with that fourth quarter estimated tax payment, that "should" eliminate the penalty if the tax payment was high enough.
