Basically, an amended return can take anywhere from 8 to 16 weeks to process, since they are processed by hand. But generally, it should show up on the website at <a rel="nofollow" target="_blank" href="
https://www.irs.gov/filing/wheres-my-amended-return">https://www.irs.gov/filing/wheres-my-amended-re...> no more than 4 weeks after you drop it in the mail. Now if you did not send it certified mail or via some other tracking method, you have no way to prove you even sent it.
If after 8 weeks it's still not showing up on the website, I would recommend sending it again via certified mail, return receipt required (not requested). But don't send it until 8 weeks have passed. Otherwise, if they actually start processing the 2nd one while the first one is possibly being processed, you may find yourself in a never ending nightmare from which you may never awaken.
