Roth Conversion and Pro-Rata rule: how to enter in turbotax

My spouse has/had two traditional IRAs for a number of years.  We are in the process of converting to Roth over 2 years, 2021 and 2022.  Prior to starting conversion in 2021, the values were as follows (numbers rounded for simplicity):

  • IRA #1:  $100,000 value with a $60,000 basis ($60,000 of earlier years after-tax non-deductible contributions, and $40,000 of gains).
  • IRA #2:  Rollover IRA, $150,000 value, rolled over from a previous employer pension plan (full $150,000 is pre-tax).

 

We're converting these accounts to Roth over a period of 2 years, in 2021 and 2022.   In 2021, we converted the entire balance of IRA #1 and $25k from IRA #2.   At 2021 year-end, the values were as follows:

  • IRA #1:  0.00
  • IRA #2:  $125,000
  • Roth IRA:  $125,000 (new account in 2021)
  • I understand the pro-rata rule requires me to spread the $60k basis across the two year conversion.

 

How do I handle this in turbotax? 

  • I entered the two 1099-Rs I received for the withdrawls going into the Roth account. 
  • I've also seen that Turbotax is aware of the $60k basis from previous years returns.
  • I can't figure out how I spread that basis to our 2022 return next year, after we convert the remaining balance of IRA #2. 
  • I've only used "step-by-step" for data entry, but looking at form 8606-S in Turbotax, line 7 says "do not include rollovers."  I'm not sure why it matters that one of the IRAs is a rollover.
  • I'm thoroughly confused how to make sure this is correctly entered/handled in Turbotax.

I have searched the community and read the various relevant posts.  I believe I understand the pro-rata rule, but I just don't get how to deal with this in Turbotax.  Thanks for any help/insight you can provide.