If you are referring to the 2021 TurboTax software, e-filing of a 2021 tax return using TurboTax closed after October 17, 2022.
The 2021 tax return can only be printed and mailed.
If e-filing was still open why would you not just e-file using the TurboTax software that you have already installed?
To answer your question, you would need to save your tax return. There will be a tax data file of the return with a file extension of .taxyyyy, where yyyy is the tax year, eg .tax2021 for tax year 2021. The tax data files is stored by default in the TurboTax folder within the Documents directory on your computer.
You could then send the tax data file as an e-mail attachment to your daughter. She would then have to download and open the tax return with the TurboTax software for the same tax year as the tax data file. Then completed the File section of the program and e-file the return.
Note - if you also complete a state tax return, her software will need to have the same state program installed on her TurboTax.
