@jj1100 wrote:
I have the exact same issue. I recently re-installed turbotax 2018 on my Mac. I get an error when attempting to download CA state. I am not able to open my 2018 tax form due this issue. I talked to Support, they were not able to give me the state download. They said it was no longer supported?
TurboTax does not support tax years prior to tax year 2020
