After you file


@ec08cc1926c0 wrote:

How could I switch it to e-file?


Guess you did not read the original response to your message.

 

Sign onto your TurboTax online account and the status of the tax return will be displayed - https://myturbotax.intuit.com/

If the status of the tax return is anything other than Accepted the tax return was not e-filed.

 

See this TurboTax support FAQ for changing from mail to e-file - https://ttlc.intuit.com/community/e-file/help/how-do-i-change-from-mail-to-e-file-in-turbotax-online...