The Free Application for Federal Student Aid (FAFSA) is a form that students in the United States fill out to apply for financial aid for college. It collects information about the student's and their family's financial situation, which helps determine eligibility for federal grants, loans, and work-study programs. Completing the FAFSA is essential for students seeking financial assistance, as many colleges and states also use it to award their own aid. The application is available online and must be submitted annually, typically starting on October 1st, to maximize funding opportunities for the upcoming academic year.