After completing the File section and e-filing your tax return you will receive two emails from TurboTax. The first email when your tax return was transmitted and the second email when the tax return has either been accepted or rejected.
Check your spam or junk mail folders for the TurboTax email.
Check the status of the tax return, it should indicate Accepted if it was e-filed and accepted by the IRS.
Sign onto your TurboTax online account and the status of the tax return will be displayed - https://myturbotax.intuit.com/