I attach pdf files to returns on a regular basis. As I stated, there is no option to attach ANY pdf files to the IN return. Indiana does not have a method to fax the information. Indiana does not have a website upload option, as some states do. Yet the form and the orange warnings say to attach the other state return. "...the pink warning will be modified for 2014 to be more specific about what it means." This from 2 higher up customer support people at CCH. Two calls in an hour. Their compliance department went to the source and found the answer. I sent an e-mail to three people at CCH. Seems I can still stir up action... If paper filing, attach the copy. If e-filed, save the copy in case IN asks for it. This is from IN tax department. If IN asks for it, I will bill the client for sending it and give them the address of the IN tax department to file complaints about their lame methods for e-file.