Thank you for the suggestion.
I got through to IRS again and was told there is a "pending transaction" in their system since "year 2021, week 38, day 00", which suggests 9/20/21. Per the person, it "usually takes 2 weeks for transaction to post", then another 1-2 weeks for a letter to generate.
I'm quite concerned about taking someone's "word" that its being taken care of and I don't need to do anything more. But I'm also a bit concerned that if I send a 1040x, it might further confuse them and complicate the situation, IF a "fix" is already pending.
My CP11 letter is dated 9/6/21 and the additional tax due date is 9/27/21. Should I give it some more time, or just go ahead and send the 1040x?
