I telecommute and have a W-2 from a company in MD, with MD taxes withheld (box 15). The address on the W-2 is my old address in IL, but I now live in NM. I plan on filing taxes in NM and MD. Do I need to do anything for IL?
If all the taxes were withheld for Maryland, and you lived in New Mexico the whole year, you do not have to file anything in Illinois. You should update your address with your employer.