The University of New South Wales is reviewing casual underpayments following pressure from the NTEU.
90% of participants performed unpaid work at the University of Sydney during Semester 2.
Staff will then be notified of the status of their claim and repayments will commence in Semester 2.
Dr Yaegan Doran of the USyd Casuals Network spoke on wage theft at USyd.
In the same week that mass underpayment of library staff was exposed, 22 librarians have accepted redundancies.
The interim report showed that 84% of participants performed unpaid labour.
This makes Sydney University the fourth G08 university that needs to repay staff.
One worker was underpaid almost $160,000
Employees are working without payslips, superannuation and written contracts
The Ombudsman has recovered wages for over 100 employees of businesses that were breaching the law