TurboTax won't login with valid credentials

Are you using the same login/password as you do for QuickBooks or another Intuit product?

You may want to try resetting your TurboTax password so that you can get back into your account: 

Intuit is not using a true one logon; its an integrated session cookie across platforms.  The accounts themselves are not truly integrated across platforms.    I tried to logon to the help center here today, using the same logon that I created this post from yesterday, and it wouldn't work (in fact, I didn't even receive a notification that a response was posted to my inquiry from yesterday - I stumbled across it).  Ran through the change password process - while using my same user ID, updated the password to what I used to logon yesterday through Mint portal; and once logged on here to the intuit forum, had to again, select a new username to use in this portal (hence jmbw1 today).  It didn't even recognize the one I created yesterday for my same User ID, but through the session I had opened via Mint.  I'm logged on now in Turbo Tax - but Intuit really needs to clarify the one logon experience; the accounts truly are still platform-independent.

I was able to fill in the forms but when it came to the 'File' step, it showed me a screen to choose the TurboTax product. I clicked 'Start' and all I saw was a blank screen. I followed instructions from the forum, to clear cache/cookies, closed browser, restarted my machine even. I switched from Firefox to Chrome to 
Safari. I was unable to log in, when I switched browsers. The login screen gets stuck on a loading spinner. 

I reset my password, tried going through the File step again, but it showed a blank screen every time! Is there a solution to this?

Since you are continuing to have problems, please click on the Contact Us form https://support.turbotax.intuit.com/contact/. We’ll help you connect with the right expert for your specific problem.