State tax filing

It’s 100% remote work, all conducted from my home in FL. I have actually never lived in or even travelled to IL. I am a remote school psychologist for three districts in IL but I’m employed and paid by a staffing agency in Tampa, FL. Since the agency is in-state, I wasn’t sure if there’d be any tie back to IL, particularly on the IRS’ end, since the agency is the ‘middle man’.