You will change your address on your tax return that has not been already filed by doing the following:
Log in to your TurboTax Online account, or open your TurboTax desktop program,
Click Take me to my return
Click on Personal Info
Under Personal Info Summary, find your Mailing Address
Click to edit and enter the correct address
To change the address on your TurboTax account you can see the instructions in the following TurboTax FAQ:
(Information for TurboTax Advantage users.)
If you need to update your account information—such as phone number, email, password, or address:
Log in to your account.
Click My Account at the top of the screen, and select Account Settings.
Select either Profile or Security depending on which options you want to update.
Click Edit next to the option(s) you want to change.
From here you can also turn on two-step authentication.