I'm in this same boat (overwhelmed by complexity). I too missed the 1045 date.
Situation: I have Casualty Loss from qualified disaster California Wildfire in 2020. Home burned, total loss. Using Safe Harbor Insurance Method. I thought I could amend 2020 return (i.e., file 1040X to establish the NOL), then amend 2015 to apply the carryback, then amend 2016 to apply the rest of it. Anyone can help with the logistics here?
Specific questions:
1. Law at the time (CARES Act) allowed carryback five years from 2020; shouldn't that be governing rule, today, via the amendment today of 2020?
2. I've got 2020 1040X done; I see the increased itemized deductions for the Casualty loss, but
(a) Turbo Tax is showing it as "Misc Deds" not Casualty Loss, can I fix that?
(b) Where/how does 1040X for 2020 show that the excess of itemized over AGI generated a "NOL" and "carryback"?
3. Do I manually calculate the NOL carryback? How?
4. Then manually enter the total onto 2015? What Form/line? Ditto for 2016...
Then print/mail it all together??
Help?
