If you received an additional W2 after you had already transmitted (e-filed) your return, to correctly make changes to your return you must amend it.
The amended process will not be available until around mid February. At that time click here and follow the instructions on how to amend a 2016 return.
If you are still in the process of working on your return but need to get back to where you can enter an additional W-2:
- Click on "Federal Taxes"
- Go to "Wages & Income"
- Click on "edit/add" next to your W2
- Click on "add another W2