Apply Online

The admission portal is currently closed for all graduate programs. To apply for the next available term beginning Fall 2026, the portal will re-open in October 2025. To apply, you will need to register an account at https://www.applyweb.com/caltgapp*. Check the Application Deadlines for the particular academic program you are applying to as the application system will close at 12:01am on the day following the posted deadline. Once the application has been submitted, you will not be able to modify supporting documents, so please proofread materials thoroughly before submission. Deadlines vary by program from December 1 to December 15.

Caltech is committed to supporting students and scholars affected by the Israel-Gaza and Ukraine-Russia conflicts, irrespective of citizenship. For those candidates in the region who have been affected, it may be possible to apply after the posted deadline. Interested candidates should contact the respective Option Representative for additional information and guidance on applying. The normal standards for admission will be used.

Application Fee

There is an application fee of $100.00 USD. Fee waivers will be granted to a limited number of applicants who can demonstrate financial need or are affiliated with organizations that have made special arrangements with our office. To request a fee waiver, please select "Fee Waiver" under Payment Options and complete the online fee waiver request form within the admission portal. Waiver decisions will typically be made within 72 hours from submission. Please do not contact the Graduate Office directly to request a fee waiver.

If you have questions about your application, you may email the Graduate Office.

Please also check the Frequently Asked Questions before contacting our office, as most answers to your questions may be found there.