| Application deadline | Unconfirmed — check official site | June 4, 2027 (2027 cycle) | Unconfirmed — check official site |
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| Cost | Unconfirmed — check official site | Last year's cycle (2026): $3,500–$4,500; 2027: Unconfirmed — check official site | Last year's cycle (2026): $1,044; 2027: Unconfirmed — check official site |
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| Financial aid | Last year's cycle (2026): Free for U.S. families with adjusted gross income under $80,000; need-based aid up to full cost: Amount: Unconfirmed — check official site. Aid for international students is decided case by case.; 2027: Unconfirmed — check official site | Last year's cycle (2026): Grace Pilcer Pre-College Scholars need-based scholarship: Amount: Unconfirmed — check official site. Up to full tuition; priority to rising seniors facing barriers and first-generation students; apply after acceptance to a course. 2027 application link expected late fall 2026.; 2027: Unconfirmed — check official site | Unconfirmed — check official site |
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| Expenses and aid conditions | Last year's cycle (2026): Free for U.S. families with adjusted gross income under $80,000; need-based aid up to full cost: Amount: Unconfirmed — check official site. Aid for international students is decided case by case.; 2027: Unconfirmed — check official site | Last year's cycle (2026): Non-refundable application fee: $40. Due when the application is submitted.; Program deposit: $400. 2026 rate; encouraged within two weeks of acceptance.; Grace Pilcer Pre-College Scholars need-based scholarship: Amount: Unconfirmed — check official site. Up to full tuition; priority to rising seniors facing barriers and first-generation students; apply after acceptance to a course. 2027 application link expected late fall 2026.; 2027: Unconfirmed — check official site | Last year's cycle (2026): Nonrefundable enrollment deposit: $100. Required after acceptance to reserve a spot; the page does not clearly say whether it reduces the tuition balance.; Required readings and course materials: $0. Available through Canvas with no additional course-material fee in 2026.; 2027: 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 | Grades 10–12; Grade timing: Unconfirmed — check official site | Grades 10–12 (provider uses rising grades) | Grades 10–12 (provider uses rising grades) |
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| Additional eligibility | Ages 14–18; Requirement: Open to grades 10–12; Requirement: Have completed 9th grade (or its equivalent) by the first day of the program; Requirement: Not yet enrolled as a full-time college or university student; Requirement: Graduating seniors may attend in the summer between high school and college or during a gap year | Requirement: Open to rising grades 10–12 | Residency: Domestic and international students may apply; Requirement: Be a rising high-school sophomore, junior, or senior; Requirement: Have at least a 3.0 cumulative GPA or international equivalent; Requirement: International applicants must provide a transcript and, when required, TOEFL iBT 80 or receive an individual exception; Requirement: Be prepared for five to ten hours of asynchronous work weekly per course; Exclusion: Rising freshmen are not listed as eligible; Exclusion: Permission is required to take more than one course; Exclusion: No more than three courses; Exclusion: Two advertised courses were cancelled |
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| Session dates or duration | Starts June 27, 2027; Ends August 7, 2027; 6 weeks (2027 cycle) | Catalog terms: 3 weeks; 2027: Unconfirmed — check official site | Catalog terms: 4 weeks; 2027: Unconfirmed — check official site |
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| Format | In person | In person | Online |
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| Housing and supervision | Residential. Supervision and housing details: Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site | Non-residential. Supervision and housing details: Unconfirmed — check official site |
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| Location | Boston, MA | Garden City, NY | Worldwide online through American University's Canvas platform |
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| Selection and application | Selection: About 80 high-school students are selected through demonstrated mathematical thinking in the problem set, academic context, recommendation, transcript, and short answers. PROMYS does not publish the current applicant count or acceptance rate. Application materials: One letter of recommendation | Unconfirmed — check official site | Selection: Rolling eligibility and space review; early applicants had better course availability, but no overall acceptance rate was published. |
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| Official sources | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-08-20Source 5 · checked 2026-08-20Source 6 · checked 2026-08-20Source 7 · checked 2026-08-20 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-10-24 | Source 1 · checked 2026-08-20Source 2 · checked 2026-08-20Source 3 · checked 2026-08-20 |
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