How to e-file your personal (individual) tax return
Updated: 4/15/2013
Article ID: GEN12077
E-filing in TurboTax is easy – sign in to (or open) your tax return, click File tab, and follow the on-screen instructions.
Make sure you continue through the screens all the way to the end. You need to click the green Transmit Returns Now button, pictured below, to e-file your return.

How to file a State return after e-filing a Federal return
In these situations, you'll need to file your State return by mail. Many states, like California, require what is called "Piggyback filing," meaning that the State return must be e-filed with the Federal. Even when simultaneous filing is not required, State returns are always compared to Federal before processing and review is complete, which could cause delays.