Same problem with 2020 Turbotax Home and Business. Couldn't import properly saved (on home computer) 2019 return file so I started from scratch. I've completed my 2020 return but not yet filed it. Saved it multiple times during input and again when I stopped. Went to call it up today to review and I get this message: "Looks like your tax file is corrupt, we're having trouble opening your return. Try opening again. If that doesn't solve the problem, create a new tax return."
Never happened in any prior years. I do returns for family members and I'm going to suspect I won't be able to access their 2019 files and might not be able to successfully save their 2020 returns. Not acceptable!
