How do I resolve a TT400 error (CD/Download versio...

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How do I resolve a TT400 error (CD/Download versions)?

If you are using a CD/Download version of TurboTax and are getting a TT400 error when trying to save or open your return, taking the following steps may help to resolve the issue:



  • Make sure that your anti-virus settings (if applicable) are not blocking the application.
  • Try running the application as an administrator, then saving your file to a different location.




If these steps do not take care of your problem, please reach out to provide us with detailed steps/info about the cause of your particular issue.



Related information:

How do I resolve a TT600 error?

What should I do if I'm getting a TurboTax activation error?


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