There are two ways in which you can file your return. They are e-file (electronic filing) and File by mail.
When you e-file your return it is done electronically. Usually, once you have transmitted your return electronically, there's nothing else that you need to do on your end. You will be notified via email when the return has been accepted.
The other option is to file by mail, which is exactly as it states, you will print off your return and follow the given instructions, take it to the local post office and mail it off to the IRS or to your State.
When completing your return and you get to the file section, TurboTax will ask you how you would like to file your return, it is recommended that you file electronically, because it is the most convenient way as well as it is the fastest way for you to get back a refund if one is expected.
