# Extracurricular Deadlines in September — Programs to Apply to September starts the school-year cycle: fall research programs, club-adjacent national programs, and early competition registration. Most programs listed here run on annual cycles, so this month's deadline pattern repeats every year — check each listing for the exact current date. 56 verified programs match this page; 21 of the featured listings are free; 9 can be done online. ## Programs (56 total, first 30 shown — full list on the canonical page) | Program | Organization | Cost | Format | Grades | Deadline | | --- | --- | --- | --- | --- | --- | | [Mathematical Olympiad for Girls](https://extracurricularhub.com/extracurriculars/olympiad-girls) | Mathematical Olympiad Foundation | $50 | virtual | Grades 9–12 | 2026-09-01 | | [CSAW High School Forensics Competition](https://extracurricularhub.com/extracurriculars/csaw-hs) | NYU Tandon | Free | hybrid | Grades 9–12 | 2026-09-01 | | [Meta Hacker Cup](https://extracurricularhub.com/extracurriculars/hackercup) | Meta | Free | virtual | Grades 9–12 | 2026-09-01 | | [Cameron Impact Scholarship](https://extracurricularhub.com/extracurriculars/cameron-impact-scholarship) | Bryan Cameron Education Foundation | Free | virtual | Grade 12 | 2026-09-10 | | [Harvard-MIT Math Tournament (HMMT)](https://extracurricularhub.com/extracurriculars/harvard-mit-math-tournament-hmmt) | HMMT Organizing Committee | Free | in_person | Grades 9–12 | 2026-09-20 | | [NASA Student Launch](https://extracurricularhub.com/extracurriculars/nasa-student-launch) | NASA | Free | in_person | Grades 6–12 | 2026-09-22 | | [United States Senate Youth Program](https://extracurricularhub.com/extracurriculars/us-senate-youth) | Hearst Foundations | Free | in_person | Grades 11–12 | 2026-09-30 | | [NASA HUNCH (High School Students United with NASA to Create Hardware)](https://extracurricularhub.com/extracurriculars/nasa-hunch) | NASA | Free | hybrid | Grades 9–12 | 2026-09-30 | | [World Youth Forum](https://extracurricularhub.com/extracurriculars/world-youth-forum) | World Youth Forum Foundation | Free | in_person | Grades 11–12 | 2026-09-01 | | [From the Top / NPR Performance](https://extracurricularhub.com/extracurriculars/from-the-top-npr-performance) | From the Top | Free | hybrid | Grades 9–12 | 2026-09-01 | | [4-H National Congress](https://extracurricularhub.com/extracurriculars/4-h-national-congress-leadership-program) | National 4-H Council | $1,200 | in_person | Grades 9–12 | 2026-09-01 | | [U.S. High School Policy Debate](https://extracurricularhub.com/extracurriculars/policy-debate-competitions-in-the-united-states) | National Speech & Debate Association (NSDA) | Free | hybrid | Grades 9–12 | 2026-09-01 | | [Young Animator Awards](https://extracurricularhub.com/extracurriculars/young-animator-awards) | Animation Magazine | $25 | virtual | Grades 9–12 | 2026-09-01 | | [Tennessee HOPE Scholarship](https://extracurricularhub.com/extracurriculars/tennessee-hope-scholarship) | Tennessee Student Assistance Corporation | Free | virtual | Grade 12 | 2026-09-01 | | [SIFMA Foundation Stock Market Game National Winner](https://extracurricularhub.com/extracurriculars/sifma-foundation-stock-market-game-national-winner) | SIFMA Foundation | Free | virtual | Grades 9–12 | 2026-09-01 | | [Net Impact High School Chapter Leadership](https://extracurricularhub.com/extracurriculars/net-impact-high-school-chapter-leadership) | Net Impact | Free | hybrid | Grades 9–12 | 2026-09-01 | | [YMCA Youth Governors Conference](https://extracurricularhub.com/extracurriculars/ymca-youth-governors) | YMCA | $100 | in_person | Grades 10–12 | 2026-09-01 | | [Music Teachers National Association Student Competitions](https://extracurricularhub.com/extracurriculars/mtna-competition) | MTNA | $200 | hybrid | Grades 9–12 | 2026-09-09 | | [AIChE Chem-E-Car Competition for Students](https://extracurricularhub.com/extracurriculars/chem-e-car) | American Institute of Chemical Engineers (AIChE) | Free | in_person | Grades 9–12 | 2026-09-09 | | [MTNA National Competition Finalist](https://extracurricularhub.com/extracurriculars/mtna-national-competition-finalist) | Music Teachers National Association | $75 | in_person | Grades 9–12 | 2026-09-09 | | [Columbia University PreCollege Programs](https://extracurricularhub.com/extracurriculars/columbia-university-precollege-programs) | Columbia University | Free | in_person | Grades 9–12 | 2026-09-11 | | [Texas Academy of Science High School Awards](https://extracurricularhub.com/extracurriculars/texas-academy-of-science-high-school-awards) | Texas Academy of Science | $50 | in_person | Grades 9–12 | 2026-09-11 | | [NASA Internships - High School](https://extracurricularhub.com/extracurriculars/nasa-high-school-internships) | NASA | Free | in_person | Grades 10–12 | 2026-09-14 | | [Slamdance Screenplay Competition (Student Division)](https://extracurricularhub.com/extracurriculars/slamdance-screenplay-competition-student-division) | Slamdance Film Festival | $45 | virtual | Grades 9–12 | 2026-09-15 | | [Breakthrough Junior Challenge](https://extracurricularhub.com/extracurriculars/breakthrough-junior-challenge) | Breakthrough Prize Foundation | Free | virtual | Grades 9–12 | 2026-09-15 | | [Youth America Grand Prix](https://extracurricularhub.com/extracurriculars/youth-america-grand-prix) | YAGP | $200 | hybrid | Grades 9–19 | 2026-09-15 | | [NASA Human Exploration Rover Challenge](https://extracurricularhub.com/extracurriculars/nasa-human-exploration-rover-challenge) | NASA Marshall Space Flight Center | Free | in_person | Grades 9–12 | 2026-09-15 | | [USAD (United States Academic Decathlon) National Champion](https://extracurricularhub.com/extracurriculars/usad-united-states-academic-decathlon-national-champion) | United States Academic Decathlon | Free | in_person | Grades 9–12 | 2026-09-15 | | [Gates Scholarship Finalist](https://extracurricularhub.com/extracurriculars/gates-scholarship-finalist) | Bill & Melinda Gates Foundation | Free | virtual | Grade 12 | 2026-09-15 | | [NASA High School Aerospace Scholars (HAS)](https://extracurricularhub.com/extracurriculars/nasa-high-school-aerospace-scholars-has) | NASA Johnson Space Center | Free | hybrid | Grade 11 | 2026-09-16 | ## Frequently asked questions ### How many september deadlines are listed for high school students? ExtracurricularHub currently lists 56 verified programs with September deadlines for high school students, each with cost, eligibility, deadline, and an official application link. ### Are any of these september programs free? Yes — 21 of the programs featured on this page charge no participation fee. Free programs are often funded and can be more selective, so apply early. ### Which deadlines are coming up soonest? The next deadlines: Mathematical Olympiad for Girls (September 1, 2026); CSAW High School Forensics Competition (September 1, 2026); Meta Hacker Cup (September 1, 2026). Deadlines change every cycle — always confirm on the program's official site. ### Do these deadlines repeat every year? Most programs listed here run annual cycles, so their deadlines fall in September (or within a few weeks of it) each year. Use this page to plan ahead, then verify the exact current date on each program's official site. ## Related pages - [Extracurricular Deadlines in October — Programs to Apply to](https://extracurricularhub.com/extracurriculars/deadlines/october) - [Extracurricular Deadlines in November — Programs to Apply to](https://extracurricularhub.com/extracurriculars/deadlines/november) - [Summer Programs for High School Students](https://extracurricularhub.com/extracurriculars/summer-programs) - [Scholarships for High School Students](https://extracurricularhub.com/extracurriculars/scholarships) - [Browse all extracurriculars](https://extracurricularhub.com/extracurriculars) - [Find My Fit — 3-minute matching quiz](https://extracurricularhub.com/find-my-fit) --- Canonical page: https://extracurricularhub.com/extracurriculars/deadlines/september Source: ExtracurricularHub (https://extracurricularhub.com) — a free directory of 1,826 verified extracurricular programs for high school students. Cite the canonical page above; always confirm binding details on each program's official site.