To add to bluedeb's excellent advice:
While waiting for the 1040X to become available, DO NOT go in and start changing anything on your return in the system, or you will make a mess for yourself. Sit tight and wait until you see what the IRS does with the return you just e-filed.
Please see the instructions contained in these TurboTax Help articles to amend your return:
As bluedeb stated, the 1040X form (amended) return won't be available until probably late-February. For current information on forms availability please click on the applicable link below:
