| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Cost | Unconfirmed — check official site | Unconfirmed — check official site | $400–$500 (2027 cycle) |
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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): 2026 Dean's Fellowship for online Pre-College: Up to $950. Need-based, expected average $500, and available only to students ultimately registered online. No 2027 aid is announced.; 2027: Unconfirmed — check official site | Financial assistance: Amount: Unconfirmed — check official site (2027 cycle) |
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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): 2026 Pre-College application fee: $85. Historical nonrefundable fee; not confirmed for 2027.; 2026 initial tuition payment: $1,950. Applied toward total tuition and initiated course registration; not an additional fee. Course placement remained subject to availability.; 2026 Dean's Fellowship for online Pre-College: Up to $950. Need-based, expected average $500, and available only to students ultimately registered online. No 2027 aid is announced.; 2027: Unconfirmed — check official site | Financial assistance: Amount: Unconfirmed — check official site (2027 cycle) |
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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 9–12 when applying; check the provider's rules for graduating seniors | Grades 9–12; Grade timing: Unconfirmed — check official site |
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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 students currently in grades 9–12 when applying; Requirement: Cumulative GPA of 3.0 or higher on a 4.0 scale; Requirement: Successful completion of 9th grade before the program starts; Requirement: Some programs require specific prior coursework | Requirement: Open to grades 9–12 |
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| Session dates or duration | Starts June 27, 2027; Ends August 7, 2027; 6 weeks (2027 cycle) | Catalog terms: 2 weeks; 2027: Unconfirmed — check official site | Starts June 27, 2027; Ends July 2, 2027; 1 week (2027 cycle) |
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| Format | In person | In person / Online | In person |
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| Housing and supervision | Residential. Supervision and housing details: Unconfirmed — check official site | Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site |
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| Location | Boston, MA | Baltimore, MD | St. Paul, MN |
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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 | Selection: Applicants must meet GPA, grade-completion, document, and course-prerequisite rules; course placement remains capacity-dependent. No general acceptance rate is published. | Selection: 2026 applications were first-come, first-served for 150-200 places per session; the 2027 capacity and selection method are not announced. |
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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 2026-08-20 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-08-21Source 4 · checked 2026-08-21 |
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