If you have not e-filed or mailed your forms, you can indeed to
back and make changes to the original return and not have to wait to amend.
Please go back to Turbo Tax and click that you
need to either amend your return or to add a state. You do not actually need to complete
either of those, but if you select one it will open your return back up for
editing. Go to the top and click on the Federal
Taxes tab or State Taxes tab and this will open the federal return
so you may add your information and then proceed back to the File tab.
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