@fanfare - I have now received the excess contribution + earnings check.
From all my reading, I can now, before Oct. 15th, 2023, file an Amended Return for 2022. For that, I need to add a new 1099-R relating to this distribution. But as long as I do so before Oct. 15, it should add this entire distribution to my 2022 income as regular income and i will therefore have additional taxes due as well.
But that will require a 2023 1009-R (creation, by me) and P code to indicate it is a return of 2022 excess contributions.
So my question on Box 1 vs. Box 2a still remains given the amounts.
This is consistent with @guywong has highlighted in his responses.
