I am reading through the issues others may have. I am having a similar issue. I have cds for 2015-2020 and I started my 2020 on my new computer. I want to use 2019 for the info for any deprecation, vehicles etc. It can't be open so I've downloaded 2019 on my new computer too. That 2019.tax file can not be opened. I have to I remove 2020. (Now I am reinstalling it and I hope I am not loosing my info I have done for 2020 so far.) It is a big deal and a lot of hassle to transfer one computer to another computer?
My question. How do use my tax return for 2019 to help me with 2020 tax while nothing isn't compatible?
