| Application deadline | January 13, 2027 (2027 cycle) | Unconfirmed — check official site | Unconfirmed — check official site |
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| Cost | $4,180–$15,980 (2027 cycle) | Last year's cycle (2026): $3,900; 2027: Unconfirmed — check official site | Unconfirmed — check official site |
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| Financial aid | Unconfirmed — check official site | Last year's cycle (2026): Need-based scholarship assistance: Amount: Unconfirmed — check official site. Requires a financial-need application and supporting documents; amount and availability are not guaranteed.; 2027: Unconfirmed — check official site | Unconfirmed — check official site |
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| Expenses and aid conditions | 2027 application fee: $75 (2027 cycle) | Last year's cycle (2026): Nonrefundable application fee: $60. A fee waiver can be requested.; Need-based scholarship assistance: Amount: Unconfirmed — check official site. Requires a financial-need application and supporting documents; amount and availability are not guaranteed.; 2027: Unconfirmed — check official site | Unconfirmed — check official site |
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| Stipend or pay | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Eligibility | Unconfirmed — check official site | Grades 9–12; Grade timing: Unconfirmed — check official site | Grade 11 when applying; summer rising grade is one higher |
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| Additional eligibility | Ages 16–18; Citizenship: International students may apply to eligible formats with visa/English requirements; Citizenship: Financial aid is limited to U.S. citizens, permanent residents, and DACA recipients; Residency: Residential students live on campus; Residency: Commuters must live with a parent/guardian or approved adult age 25+ within reasonable commuting distance in New England; Residency: Online students participate from home; Requirement: Graduate high school and enter college in 2027, 2028 or 2029.; Requirement: Be at least 16 by June 13, 2027 and not turn 19 before July 31, 2027.; Requirement: Show maturity and academic readiness for intensive college-level work; Requirement: Meet selected-course prerequisites; Requirement: Submit English-proficiency evidence if English is not the native language; Requirement: Clear the calendar for the full program, especially residential study; Exclusion: An applicant may apply to only one Harvard Summer School high-school program in a year; Exclusion: International students using a Harvard-sponsored I-20 cannot take online classes; Exclusion: Participation does not guarantee Harvard College admission or another institution's acceptance of credit; Exclusion: No minimum GPA or required PSAT/SAT/ACT score is published | Requirement: Be a current high-school student or recent graduate before beginning college; Requirement: Earn As and Bs in high-school math and science; Requirement: Complete Algebra II; Requirement: Complete trigonometric functions and right-triangle problem solving; Requirement: Complete one full year of high-school chemistry and/or physics including lab, or meet the published AP substitution; Requirement: Attend daily live Eastern Time classes and complete about 28 hours of weekly coursework; Requirement: Meet English-proficiency documentation rules if a foreign national; Exclusion: The course is not an introductory low-commitment camp; Exclusion: Older students receive priority when space is limited; Exclusion: Students without required math/science preparation may not be ready or admitted; Exclusion: Lab-kit delivery deadlines and customs constraints can narrow international participation | Residency: U.S. citizens may reside anywhere; Residency: Non-U.S. citizens must already live in the United States; F-1 students are explicitly eligible and other visa holders must confirm with GSTEM; Requirement: Be a current high-school junior at application time; Requirement: Demonstrate high aptitude in STEM; Requirement: Attend every day of the six-week program; Requirement: Not participate in another program simultaneously; Requirement: Be open to a mentor and research placement selected by GSTEM; Exclusion: Current sophomores and seniors are not eligible for the summer research program; Exclusion: Non-U.S. citizens living outside the United States are ineligible; Exclusion: The program is open to all genders; being a girl is not an eligibility requirement; Exclusion: Students may not miss part of the program or choose a specific mentor or research topic |
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| Session dates or duration | Catalog terms: 4–7 weeks; 2027: Unconfirmed — check official site | Catalog terms: 5 weeks; 2027: Unconfirmed — check official site | Catalog terms: 6 weeks; 2027: Unconfirmed — check official site |
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| Format | In person / Online | Online | In person |
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| Housing and supervision | Unconfirmed — check official site | Non-residential. Supervision and housing details: Unconfirmed — check official site | Non-residential. Supervision and housing details: Unconfirmed — check official site |
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| Location | Cambridge, Massachusetts | Worldwide synchronous participation, subject to Eastern Time attendance and lab-kit shipping/customs feasibility | New York City, New York |
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| Selection and application | Selection: Harvard evaluates essays, transcripts/current grades, counselor report, GPA, maturity, readiness, and program fit holistically; it publishes no minimum GPA and does not require standardized academic tests. Application totals, admit rate, option/course capacities, waitlist odds, and scholarship odds are not published. Application materials: Student-created online application and short essays | Selection: Completed applications are academically reviewed. Rising juniors and seniors are typical, talented rising sophomores may be considered, and older students receive priority when space is limited. Programs can fill before final deadlines; no acceptance rate is published. Application materials: Required 175-225-word motivation essay; Optional 100-125-word context essay; One math/science/engineering/robotics/computer-science teacher recommendation in English | Selection: GSTEM describes admission as competitive and admits 40 students each summer. Decisions consider high-school academics, essays, STEM activities, and one recommendation; applicant count and acceptance rate are not published. Application materials: Four essays; One recommendation from a teacher, advisor, or counselor; Optional Winston Data Scholarship essay |
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| Official sources | Source 1 · checked 2026-10-09Source 2 · checked 2026-10-09Source 3 · checked 2026-10-09Source 4 · checked 2026-10-09Source 5 · checked 2026-10-09 | Source 1 · checked 2026-08-21Source 2 · checked 2026-08-21Source 3 · checked 2026-08-21Source 4 · checked 2026-08-21Source 5 · checked 2026-08-21Source 6 · checked 2026-08-21Source 7 · checked 2026-08-21 | Source 1 · checked 2026-10-09Source 2 · checked 2026-10-09Source 3 · checked 2026-08-21Source 4 · checked 2026-08-21Source 5 · checked 2026-08-21 |
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