Much of the information that gets reported on a state return gets listed on your federal return as well.  Because of this, you must enter your federal return information as though you are preparing a federal return.  When you are done with your federal return, add the appropriate state returns that you plan to file.

When you are ready to submit your state return, select the "Send My Return Electronically" button from the Main Menu.  On the first page in the e-file process you will be able to select what returns you wish to e-file.  If you only want to file just your state return (and do NOT want to file your federal return), check the box that says "Check here if you would like to electronically file your return as a State Only return. If you check this box your federal return will not be e-filed." 

The following states must be filed with the Federal Return and do not allow you to send in a state only return:  Arkansas, Hawaii, and Oklahoma.  For these states the state return must be sent together with the federal return.  If you have already e-filed your federal return and now need to file a state return for one of these 3 states, your state return must be mailed on paper.  It cannot be filed electronically.

Please note:  Your account will still be charged the e-file fee when filing a "State Only" return.