# Summer 2027 Application Deadlines: What's Confirmed So Far

*September 26, 2026 — by Extracurricular Hub*

The summer 2027 deadlines programs have actually posted, from Yale Young Global Scholars and COSMOS to West Point SLE, UT Southwestern STARS and the Jackson Laboratory, plus which big programs haven't announced 2027 dates yet.

Every fall, students start searching for summer deadlines before most programs have posted them. This page lists only what programs have actually confirmed for summer 2027 on their official pages, checked on September 26, 2026. When a program hasn't posted 2027 dates, we say so instead of guessing, and we note when the program says it will announce them.

Deadlines are the latest you can apply, not the best time. Some programs below review applications on a rolling basis or have an early deadline, and selective programs usually ask for essays, recommendations or both. Start with our guide to [summer program essays and recommendations](/blog/summer-program-application-essays-recommendations).

### This Fall: Deadlines Already Coming Up

| Date | Program | What the official page says |
| --- | --- | --- |
| October 15, 2026 | Yale Young Global Scholars | Early Action deadline, 11:59 p.m. ET; decisions by December 11, 2026 |
| November 1, 2026 | MIT Jameel Clinic AI & Health bootcamp | Early Action deadline for this one-week program for grades 10-12 in mid-July 2027; decisions by the end of February |
| November 2026 (expected) | NSLI-Y | The 2027-28 application for summer and academic-year language programs abroad is "coming soon," with the deadline expected in November 2026 |

### Applications That Open This Fall

| Program | Opens | Due |
| --- | --- | --- |
| MITES Summer (MIT) | Typically November | Typically February 1; recommenders by February 15 |
| UT Southwestern STARS Summer Research Program | November 16, 2026 | January 22, 2027 |
| Jackson Laboratory Summer Student Program | November 2026 | January 25, 2027, 5:00 p.m. ET |
| Simons Summer Research Program (Stony Brook) | Late November 2026 | Not yet posted; the page says no late applications |
| Stanford SIMR | December 18, 2026 | Late February 2027 |

A few details worth knowing before you add these to your list:

- **MITES Summer** is a six-week residential program at MIT for students applying in 11th grade who are U.S. citizens or permanent residents; MIT says program costs, including room and board, are covered and students pay only their travel. MIT gives its usual timeline rather than 2027 dates, so confirm them when the application opens.
- **STARS** is an eight-week, non-residential, paid research program at UT Southwestern in Dallas. Applicants must be juniors, at least 16 by June 1, and the program's stated purpose is to encourage students in North Texas.
- **The Jackson Laboratory** lists a $7,500 stipend plus room, board and travel for its 10-week program, and says it no longer accepts high school seniors. Read its eligibility FAQ before applying.
- **SIMR** gives tentative dates of June 7-July 29, 2027 (8 weeks). Applicants must be juniors or seniors in the classes of 2027 or 2028, at least 16 by the start date, and U.S. citizens or permanent residents; Stanford says selection "will heavily favor local (Bay Area) students."

### Winter 2027: The Busiest Stretch

| Date | Program | What the official page says |
| --- | --- | --- |
| December 1, 2026 | Interlochen Arts Camp | Pre-assessment deadline for Camp 2027: apply by then and admissions checks that your materials are complete before priority review |
| January 6, 2027 | Yale Young Global Scholars | Regular Decision deadline, 11:59 p.m. ET; decisions by March 10, 2027 |
| January 6, 2027 | COSMOS (California students only) | Online application opens at 8:00 a.m. |
| January 15, 2027 | Interlochen Arts Camp | Priority application deadline; decisions sent March 1 |
| January 22, 2027 | UT Southwestern STARS | Applications close |
| January 25, 2027 | Jackson Laboratory | Applications due, 5:00 p.m. ET |
| February 1 (typical) | MITES Summer | Student deadline; recommendations due February 15 |
| February 5, 2027 | COSMOS | Application closes; decisions March 25, 2027 |
| February 15, 2027 | West Point Summer Leaders Experience | Applications open for juniors |
| February 22, 2027 | MIT Jameel Clinic AI & Health bootcamp | Regular deadline; decisions by the end of April |
| Late February 2027 | Stanford SIMR | Applications due |

Interlochen keeps accepting applications after its priority deadline, and programs that don't need an audition or portfolio enroll first come, first served starting in December, so earlier is better there too.

### Spring 2027: Service Academies and Late Deadlines

| Date | Program | What the official page says |
| --- | --- | --- |
| Early February - April 1 | Coast Guard Academy AIM | Application window for students entering senior year (the page gives days, not a year) |
| April 15, 2027 | West Point Summer Leaders Experience | Application deadline for summer 2027 |
| To be announced | Naval Academy Summer Seminar | 2027 sessions posted (June 5-10, June 12-17, June 19-24); application opening listed as "TBD" |

Our [service academy summer programs guide](/blog/service-academy-summer-programs-high-school) covers eligibility and costs for each.

### Announced Later: When to Check Back

- **[Canada/USA Mathcamp](/extracurriculars/canadausa-mathcamp):** dates and location for 2027 will be announced in December.
- **[BU RISE](/extracurriculars/bu-rise-research-in-science-engineering):** 2027 practicum options will be announced in December. BU lists a 2027 calendar of June 27-August 6 for residential students and June 28-August 6 for commuters, marked as pending approval.
- **[CDC Museum Disease Detective Camp](/extracurriculars/cdc-museum-disease-detective-camp):** the CDC says to check back in January 2027 for information about the 2027 summer programs.

### Not Posted Yet, or Not Running

- **[Telluride Association Summer Seminar (TASS)](/extracurriculars/telluride-association-summer-seminars-tass):** not running in 2027. The Telluride Association announced on September 21, 2026 that it will not offer TASS summer sessions in 2027 while it reviews the program.
- **[Research Science Institute (RSI)](/extracurriculars/research-science-institute-rsi):** the application page still says applications for RSI 2026 are closed, and no 2027 deadline is posted. RSI says students typically apply in the middle of junior year.
- **[Iowa Young Writers' Studio](/extracurriculars/iowa-young-writers-studio):** the page still shows the 2026 cycle. Last cycle's application window was January 19-February 1, 2026, so expect a short winter window again, but wait for the 2027 dates.
- **[Summer Science Program](/extracurriculars/summer-science-program-ssp):** no 2027 dates on its FAQ page yet.

### Also on the Calendar: Competitions and Year-Round Programs

Summer programs aren't the only deadlines this school year. These aren't summer programs, but they land in the same months and compete for the same evenings:

| Date | Program | What the official page says |
| --- | --- | --- |
| October 26, 2026 | Congressional App Challenge | The 2026 deadline to register and submit an app is 12:00 p.m. ET. Middle and high school students can enter alone or in teams of up to four. |
| November 5, 2026 | Regeneron Science Talent Search | Application deadline, 8 p.m. ET, for the research competition for high school seniors |
| December 1, 2026 | U.S. Senate Youth Program | National deadline for states to submit delegates for Washington Week, March 6-13, 2027; student deadlines are set by each state and come earlier |
| January - March 2027 | ISEF-affiliated science fairs | When most U.S. fairs are held; April 12, 2027 is the last date an affiliated fair can run before Regeneron ISEF, May 8-14, 2027 |

If you're entering a science fair, the approvals some projects need before experimenting take time, so read our [science fair path guide](/blog/science-fair-path-regeneron-isef) this fall. For the Senate Youth Program and Boys and Girls State, see our [civics programs guide](/blog/civics-government-programs-high-school-students).

### Reading "Typical" and "Expected" Dates

A few programs describe their usual timeline instead of posting this year's dates. MITES says its application "typically opens in November and closes on February 1," the Coast Guard Academy lists AIM dates without a year, and NSLI-Y says its deadline is "expected" in November. Treat those as planning dates: put them in your calendar, but set a reminder to confirm on the official page once the application opens. The Sources list below shows the date we last checked each page.

### How to Use This List

1. **Pick five to ten programs** that fit your interests, grade and budget. Our [summer planning guide](/blog/summer-planning-guide-high-school-students) helps you build a balanced list.
2. **Put every date in one calendar,** including recommender deadlines and "check back" dates.
3. **Work backwards.** Ask for recommendations four to six weeks before each deadline and start essays at the same time.
4. **Recheck the official page** before you submit. Programs change dates, and a few pages above give only a usual timeline.

For what's open right now, see [programs to apply to this week](/apply-this-week) and browse all [summer programs](/extracurriculars/summer-programs). Save the ones you like to your [Activities Builder](/activities), and if you get into more than one, read [how to choose between summer programs](/blog/how-to-choose-between-three-summer-programs).

## Sources

- [Yale Young Global Scholars: Application Dates and Deadlines](https://globalscholars.yale.edu/application-deadlines) (checked September 27, 2026)
- [MIT Jameel Clinic AI & Health Summer High School Bootcamp](https://jclinic.mit.edu/events/high-school-summer-bootcamp/) (checked September 27, 2026)
- [National Security Language Initiative for Youth (NSLI-Y)](https://www.nsliforyouth.org/) (checked September 27, 2026)
- [MITES: Apply to MITES Semester and MITES Summer](https://mites.mit.edu/discover-mites/apply-to-mites/prepare-your-application-mites-summer-and-mites-semester/) (checked September 27, 2026)
- [UT Southwestern STARS Summer Research Program](https://www.utsouthwestern.edu/education/nondegree-programs/stars/programs/summer-research-opportunities.html) (checked September 27, 2026)
- [The Jackson Laboratory Summer Student Program: Admission](https://www.jax.org/education-and-learning/high-school-students-and-undergraduates/learn-earn-and-explore/admission) (checked September 27, 2026)
- [Simons Summer Research Program, Stony Brook University](https://www.stonybrook.edu/simons/) (checked September 27, 2026)
- [Interlochen Arts Camp: How to Apply](https://www.interlochen.org/summer-camp/admission/how-to-apply-to-arts-camp) (checked September 27, 2026)
- [Stanford Institutes of Medicine Summer Research Program (SIMR)](https://simr.stanford.edu/) (checked September 27, 2026)
- [COSMOS: Dates and Deadlines](https://cosmos-ucop.ucdavis.edu/app/main/page/dates-deadlines) (checked September 27, 2026)
- [West Point Summer Leaders Experience](https://www.westpoint.edu/admissions/summer-program) (checked September 27, 2026)
- [U.S. Coast Guard Academy Introduction Mission (AIM)](https://uscga.edu/admissions/aim/) (checked September 27, 2026)
- [U.S. Naval Academy Summer Seminar](https://www.usna.edu/Admissions/Programs/NASS.php) (checked September 27, 2026)
- [Canada/USA Mathcamp](https://www.mathcamp.org/) (checked September 27, 2026)
- [BU RISE Internship and Practicum](https://www.bu.edu/summer/high-school-programs/rise-internship-practicum/) (checked September 27, 2026)
- [CDC Museum Disease Detective Camp](https://www.cdc.gov/museum/camp/detective/index.htm) (checked September 27, 2026)
- [Telluride Association: An Important Message About TASS 2027](https://tellurideassociation.org/news/tass-pause-2027/) (checked September 27, 2026)
- [Congressional App Challenge: Student Registration](https://www.congressionalappchallenge.us/students/student-registration/) (checked September 27, 2026)
- [Congressional App Challenge: Rules](https://www.congressionalappchallenge.us/students/rules/) (checked September 27, 2026)
- [Regeneron Science Talent Search, Society for Science](https://www.societyforscience.org/regeneron-sts/) (checked September 27, 2026)
- [United States Senate Youth Program](https://ussenateyouth.org/) (checked September 27, 2026)
- [Affiliated Fair Network: dates and deadlines, Society for Science](https://www.societyforscience.org/isef/affiliated-fair-network/) (checked September 27, 2026)
- [Research Science Institute: Apply to RSI, Center for Excellence in Education](https://www.cee.org/programs/apply-rsi) (checked September 27, 2026)
- [Iowa Young Writers' Studio: How to Apply, Summer Residential Program](https://iyws.program.uiowa.edu/how-to-apply/summer-residential-program) (checked September 27, 2026)

Last reviewed against these sources on September 27, 2026.

## Frequently asked questions

### When are summer 2027 program applications due?

Most of the deadlines posted so far fall between January and April 2027. For example, Yale Young Global Scholars' Regular Decision deadline is January 6, 2027, COSMOS closes February 5, 2027, and West Point's Summer Leaders Experience closes April 15, 2027. A few are earlier: YYGS Early Action is October 15, 2026.

### What should I do if a program hasn't posted its 2027 dates?

Use last cycle's dates only as a rough guide, sign up for the program's updates, and check its official page again when it says dates will appear. Several programs say when that will be: Simons in late November, Mathcamp and BU RISE in December, and the CDC Disease Detective Camp in January 2027.

### Is the Telluride Association Summer Seminar running in 2027?

No. The Telluride Association announced on September 21, 2026 that it will not offer TASS summer sessions in 2027 while it reviews the program.

### Which summer 2027 deadlines are this fall?

Yale Young Global Scholars Early Action closes October 15, 2026, and the MIT Jameel Clinic AI & Health bootcamp's Early Action deadline is November 1, 2026. NSLI-Y says its 2027-28 application deadline is expected in November 2026.

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Last updated: 2026-10-05.
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