What is an Electronic Filing Identification Number (EFIN)?
Providers need an EFIN to electronically file tax returns. We assign an EFIN to identify firms that have completed the IRS e-file Application to become an Authorized IRS e-file Provider. After the provider completes the application and passes a suitability check, we send an acceptance letter, which includes the EFIN, to the Provider.
https://www.irs.gov/e-file-providers/faqs-about-electronic-filing-identification-numbers-efin
You do NOT have an EFIN. You are the user of the TurboTax software which assists you in completing a tax return. Your tax return is self-prepared.
You complete your tax return by finishing all 3 Steps in the File section. In Step 3, to e-file your tax return, you must click on the large button labeled "Transmit my returns now".
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.
