If you used to file joint returns before the divorce, then you need a new account and new user ID, because it is too messy and difficult to remove the "spouse stuff" from an old account. I think you might mean you used to file "married filing separately" since there is no such thing as "married filing single." You *might* be able to continue to use that old account if you go in to MY INFO and change the way you answer the question to "were you married...."
But if you start getting errors as you continue to work, you would be better to start a new account.
https://turbotax.intuit.com/tax-tips/marriage/video-taxes-divorce-heres-what-to-know/L8gReKTj8
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
