Get your taxes done using TurboTax

Oh are you trying to start the program again?  No you just stay in the same program.  Go up to File-New.  Be sure to first save your return by going to File-Save.  

And be sure to save each return with a different name.  If your dad has the same first name as you his return might overwrite yours.  So when you save his return the first time go to File-Save As.  And be sure to save frequently.  

Your tax files end in .tax2018 and are saved in your Documents in the Turbo Tax folder.