Retirement tax questions

Thank you,

The earnings  on those funds was also transferred out of the Roth in the 2020 Excess removal in Feb. 2021.

 

Do I report those earnings on my  2020 or 2021 return?

 

I was told I need to include a letter of explanation on those earnings to the IRS. 

((Maybe because I have no paperwork (1099-R) from my broker on those earnings until 2022?? ))

 

How do I create that letter in Turbo Tax?

 

Because I am under 59 1/2 years old, I also need to fill out form 5329.

Do I do that for 2020 or 2021 returns?

How do I fill out that form in Turbo Tax?

 

Thanks for your continued guidance.