So, Today is april 18 and the deadline is today. I filed my tax return couple months back and forgot to do my other w2 form. So I Amend my return and added the one i forgot to do TODAY. How Do I know if I have filed it? Do I need to mail? Can i Efile? Do i still get a penalty on 4/18/18? What should i do?
Amended returns have to be mailed. Be certain that you amended your originally filed return through the amend link on your account. Then print the 1040X, sign and mail. If any additional taxes were owed, send a check with the 1040X or pay directly on the IRS website.