What I mean is...on the 2021 return, I can just input all the information (line-by-line). Ideally, I don't have to think about anything--since I have the paper copy of the tax return. If I were to do the 2022 return "from scratch," I would have to figure out what I did with my refinancing from 10 years ago, things that I deducted for home to rental, etc. Things that were done years ago that still impact my 2022 return.
