Get your taxes done using TurboTax

First, fill out FORM 2210ai

Normally, the tax penalty presumes even income over the course of the year but FORM 2210ai figures the penalty for “lumpy income” and it could be that completing the form eliminates the penalty as you will report the RMD in the last part of the year

Also, if you sold the mineral rights after you inherited it , why is there tax to be paid ? Wouldn’t the value of the mineral rights “step up” at the passing of your mother?