After you file

#1 see below for amend instructions.

#2 Correct.  If you filed the 2020 tax return on or before the May 17 dudate then you halve until Oct 15, 2021 ro remove the excess plus earnings.

#3 If removed per #2 then there is no 2021 excess.

You should *wait* until your return has been processed and you receive your refund or conformation that any tax due has been paid. (If you file an amended return while you first return is being processed it can cause extended delays for both returns if two returns are in the system at the same time). In addition, if the IRS makes any change on your original return, you might end up having to amend the amendment – a sticky process that can take a year or more).

-- Then you can start the amend process.

It is suggested that it be mailed certified with return receipt (or other tracking service) to verify that the IRS receives it. That is the only proof of mailing that the IRS will accept.

-- Amended returns can be mailed or e-filed - allow 8-12 weeks - can take up to 16 weeks (4 months) for processing.


See this TurboTax FAQ for help with amending:

https://ttlc.intuit.com/questions/1894381-how-to-amend-change-or-correct-a-return-you-already-filed

You can check the status of your amended return here but allow 3 weeks after filing for it to show up:
https://www.irs.gov/filing/wheres-my-amended-return


Enter the 2021 1099-R that should have a box 7 code JP in the 2020  amended return.   When asked say that it is a *2021* 1099-R, not a 2020.