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 return(s) that you plan to file within your TaxSlayer account.

When you are ready to submit your state return, select the "E-file" option located on the black navigation bar found on the top of the page.  On the first page in the e-file process, you will be able to select what returns you wish to e-file (both Federal and any applicable states will already be marked as ready to file).  Since you are only electronically filing your state return, simply uncheck the box next to the federal return. 

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