Not sure what you mean by "adding 2021 tax to 2020 2022" or why you are mentioning 2020. If you are trying to start your 2022 return, and you want to transfer the 2021 tax file in, you must do that at the very beginning, before you enter any 2022 information. The desktop software will prompt you on the first screen -- after you launch 2022 software -- and ask if you want to transfer in the past year. You can transfer 2021 in. You cannot transfer 2020 into 2022 software.
How to transfer last year’s return? https://ttlc.intuit.com/questions/1900883
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
