College students and parents can fill out their Free Application for Federal Student Aid (FAFSA) with the help of experts from the Illinois Student Assistance Commission. The FAFSA is the way federal student aid is dispersed and experts from ISAC can answer your questions about it. Drop in any time during the 4-hour workshop to fill out your FAFSA, it will take approximately 20 minutes to complete. You will need to bring your personal tax information with you. For parents of college students or independent college students.