California Institute of Technology: Supplemental Essays & Deadlines 2026-27

Every California Institute of Technology application deadline and writing prompt for the 2026-27 cycle, verified against the school's own materials on August 7, 2026.

2026-27 Application Deadlines

Supplemental Essays & Short Answers

1. Why did you choose your proposed area of interest? If you selected 'other', what topics are you interested in pursuing?
   200 words
2. Regardless of your STEM interest listed above, take this opportunity to nerd out and talk to us about whatever STEM rabbit hole you have found yourself falling into. Be as specific or broad as you would like.
   200 words · optional
3. Caltech cares about context. Is there anything about your academic preparation, coursework, school context, or learning experiences that would help us better understand your readiness for Caltech?
   200 words · optional
4. Tell us about a time your learning in STEM was shaped by another person or group — either because you needed help, offered help, changed your thinking through collaboration, or contributed to someone else's understanding. What did that experience teach you about learning and working with others?
   200 words
5. Tell us about a time your approach to a STEM problem, concept, or project mattered as much as the outcome. How did you work through uncertainty or persist creatively in tackling the problem? What would you still defend about your process, regardless of the outcome?
   200 words
6. Tell us about a STEM question, problem, idea, or project that has held your attention over time. What drew you to it, how have you pursued it, and what do you still want to understand?
   200 words · optional
7. Tell us about something you created, tested, repaired, modeled, coded, built, or redesigned. What problem were you trying to solve and what did the process reveal to you?
   200 words · optional
8. Caltech students bring more than academic ability to the communities they join. What is something you would be excited to do, share, teach, make, start, or contribute as part of the Caltech community?
   200 words

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Deadlines and prompts change. This page was verified on August 7, 2026; always confirm on California Institute of Technology's official admissions site before submitting.