You'll find this in the Indiana state tax interview. Select State (left side of your screen) then begin the Indiana Return. As you continue through the Indiana interview, you'll reach a screen that says Take a look at Indiana credits and taxes. Scroll down and select Indiana CollegeChoice 529 Plan, then follow the onscreen instructions. (Click the screenshots below for reference.)
[Edited 03.04.2018 I 11:11AM PST]
