Thanks for the info Critter-3, I've had to do a 1040X in the past and very well may have to do it again this year.
But I'm wondering if you've seen the article regarding superseding returns from the IRS' NTA blog (below)?
Taxpayers may file a 2020 Superseding Return
The article seems to suggest that superseding returns are an acceptable option for individual tax payers provided they are done correctly (on paper, submitted before the filing deadline, have all supporting documentation, etc).
I suppose I will have make an additional payment to satisfy the amount owed on my original return and hope that the superseding return does eventually get processed.
If not, 1040X it is.
