Apply for an FSA ID with the U.S. Department of Education. Students and parents of dependent students should both apply for their own FSA ID. If you or your parents have an FSA ID from a previous year, please use that. If you have forgotten your fFSA ID, the Department of Education site listed above will help you retrieve it. You will use the FSA ID every year you apply for financial aid. The FSA ID is also used to complete Master Promissory Notes and Entrance Counseling for Federal Loans.