Tennessee is not available to select on line 15 for state name it only has Texas no Tennessee available what do I do?

[SusanY1]

Leave that box blank.  Since Tennessee doesn't have an income tax it is not available to select.  Be sure to also leave boxes 16 and 17 blank as well. 

[VolvoGirl]

There are now 8 states that do not tax their residents’ income: Alaska, Florida, Nevada, South Dakota, Tennessee, Texas, Washington, and Wyoming. If your state is not listed in the W2 box 15 drop down list it doesn’t have an income tax.  Leave W2 boxes 15,16, & 17 BLANK, empty, no spaces.