If you have not mailed that Form 1040X yet, then you have not submitted your amended return at all. An amended return can only be submitted by mail. So go back and make the necessary changes before you print, sign and mail your Form 1040X. It cannot be e-filed.
After you print, sign and mail your amended return—1040X— to the IRS wait about 3 weeks and then you can begin checking on it at the IRS website. Be aware that it can take at least 3-4 months for an amended return to be fully processed (or sometimes even longer.)
... View more