I just received an email from https://sso.identitymanagementcenter.com stating it's for TurboTax customers asking me to log in. It doesn't load. Is it legit?

This sounds like it could be a phishing e-mail. Please report the e-mail immediately (with the email headers intact, if possible) to https://security.intuit.com/ . We will look into each reported instance.

See this FAQ for more on avoiding phishing e-mails and scams: https://ttlc.intuit.com/replies/4256209

Is this a real email I clicked on it and nothing loaded 

No.  Did you read the reply that was already in this thread?  Do not click on suspicious emails.