You should be able to delete the erroneous form 1099-R. In the download version, click on the Forms icon in the upper right corner of the window. Locate the Form 1099-R you want to delete in the list of "Forms in My Return" and click on the entry. The form should appear in the view panel. Verify that this is the form you wish to remove. If it is, click on the "Delete Form" button at the bottom of the window. I don't recall whether you get a confirmation pop-up, but if you do, respond to it. Once the form is deleted, all the entries will be backed out and your taxes will be adjusted accordingly. You can either add the correct form manually by clicking on the Open Form button at the top and selecting the correct form, or you can click on the "Step by Step" icon in the upper right corner and navigate back to the section you intended to fill in.
