Very helpful. Thank you!
Quick follow-up---both 2020 and 2021 returns were filed. When you say that I should wait for 2020 to be accepted before amending the 2021 return--are there any implications to filing both concurrently? If I receive a letter on the 2021 amended return, would I just be able to submit the updated Schedule D and 1099-B statement from 2020 to resolve?
