You can sign back into your account to verify your filing status.
If they have not filed you will see a screen with an
orange button that says "Take me to my return".
It the screen says "Ready to print your returns" you need to print, sign and mail your returns to complete filing.
https://ttlc.intuit.com/replies/3401713
If you have completed your tax return, when you
log in you will see a message that states "Welcome Home , Great Job on
your taxes!"
