I RS does not check with SS Office for your status, but it is the your work place who reports ot the IRS. As long as you have F1 Workpermit, and you work outside the school , they will not report to IRS as nonresident. Which State you are in? It may help me to acquire more knowledge other than MA. What exactly IRS is asking you to furnish. Can you name the papers they are looking for?