The federal deadline to submit the FAFSA for the 2026-27 school year is June 30, 2027 — but treating that date as your actual deadline is one of the most expensive mistakes a student can make. * That June 2027 date only protects your eligibility for federal aid: Pell Grants, federal student loans, and work-study. States and individual colleges run their own, far earlier deadlines for their own grant and scholarship money, and most of that state aid is first-come, first-served — once the pool is allocated, filing on time doesn't help you anymore. * State priority deadlines cluster in the January-to-March window. Texas closes January 15. California's Cal Grant priority date is March 2, 2026. Pennsylvania runs later, closing May 1. Every state sets its own date, so check your specific state's financial aid agency rather than assuming a national deadline applies. * Colleges add a third layer on top: many schools require the FAFSA on file before their own institutional deadline, which is often tied to admission decisions and can fall as early as February or March for aid tied to fall enrollment. * Once you've submitted, you can still go back and make corrections or updates through September 12, 2027, at 11:59 p.m. Central time. The practical rule of thumb: file as close to when the FAFSA opens as your tax information allows, and never wait for the federal deadline — by then, most of the money that isn't purely federal is already gone.