I’m using an iMac, running Big Sur 11.6.4.
I store my TurboTax 1040‘s on an external hard drive. I had downloaded TurboTax 2021, and was perhaps a quarter of the way through it, when I found myself unable to save this TurboTax file. I then called Apple. The solution: to create a new “user“ on my computer. A tech walked me through the steps: Click 1) Apple icon (upper left corner) —> System Preferences —-> Users & Groups. 2) Unlock the lock-icon by inputting the password that you use to first open your computer. 3) At the bottom of the drop-down menu, click “+”. 4) In the blank rectangle that says “name,” type in a name for this new “user“ (E. G. “Test user“). 5) In the next rectangle (“account name“), auto fill will instantly add a name (E. G. “testuser”). 6) Create a password for this new user. I can’t recall if there are some further steps (I was too busy following the tech’s instructions). At some point, you may also need to input your “Apple ID“ (which is often just your email address) & your password (the one you use when purchasing Apple apps, etc.). But shortly, your new-user screen appears. It will be different from your normal screen backdrop. But you should see your dock at the bottom. In my case, I also saw the icon for the external hard drive on which I’d stored my TurboTax file. I clicked it. The file opened up; but then asked me to go through the original steps once again of downloading any updates & reregistering the TurboTax software. But once I’d done so, my TurboTax file opened up, exactly where I’d left off. And, amazingly, I was now able to save the file! NOTE: You may also want to have your emails appear on this new-user screen (which I recommend, so that you can later email your finished 1040 directly to the IRS). To do so: Click on: Apple icon —> System Preferences —> Internet Accounts. This brings up, on the right side of the drop-down menu, five choices of email providers. (I chose “Yahoo,“ the provider I usually use.) After doing so, a list of five apps, that can be connected with your provider, appears. All five (like “mail,“ “contacts,“ etc.) were pre-checked. I left them that way. A moment or two later, I now had email connectivity on this “new user“ screen. Thank you, Apple tech-support!
