The easiest way to see is to view your 1040 before adding the 1099-R. Then view it after you enter it. Even if there is an underpayment, there may not be a penalty. If there is no penalty, you haven't lost anything. While you would have to pay it now, you got the entirety of your RMD.
You can view your 1040 form before you e-file:
- Open or continue your return.
- Select Tax Tools in the left menu (if you don't see this, select the menu icon in the upper-left corner).
- With the Tax Tools menu open, you can then:
- Preview your entire return: Select Print Center and then Print, Save, or Preview This Year's Return (you may be asked to register or pay first).
- View only your 1040 form: Select Tools. Next, select View Tax Summary in the pop-up, then Preview my 1040 in the left menu.
