No, TurboTax will not mail your tax return.
If you selected e-file, TurboTax will submit the tax return for you.
If you chose to file by mail, you will need to print and mail.
Here is how to print in TurboTax Online:
Login
to your account
Go
to Tax Tools in the black column on
the left
Click
Print Center
Select
to print current year tax returns or prior year tax returns
To confirm which filing option you have chosen, go to Step 3 in Filing