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What is a Unique Student Identifier (USI)?

UPDATED 10 SEP 2026 | 6:30AM

The Unique Student Identifier (USI) is a government-issued reference code that identifies you as someone who has commenced or undertaken education or training within Australia. You keep the same USI for life as it’s your national education number. 

Students are required to obtain a USI, then submit it to Curtin via eStudent.If you do not submit your USI, a sanction may be placed on your account and you may have your enrolment cancelled or lose access to Commonwealth financial assistance (such as HECS-HELP or FEE-HELP).  Visit Curtin's USI website for more information, including how to obtain and submit your USI to Curtin.

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