Do I need to file any tax forms, with no money earned, for a sole proprietor with an EIN? I requested an EIN thinking that I was going to use it, but it has taken longer to get to a point of preparation than I had previously thought it would take. I don't have any income or expenses to report for last year, but I'm unsure if I need to file anything to declare that. What, if anything, do I need to do? Thanks!