International students now represent nearly one-third of tertiary students in Australia, a proportion significantly higher than the average among similarly wealthy countries, according to recent data. The majority of these students come from China, India, and Nepal, contributing to a rapid increase in international enrolments over the past decade.

From 2015 to 2024, the share of international students in Australia rose by 16 percentage points, compared with a modest four-point increase on average across OECD nations. Australia hosts 45 times more international students than it sends overseas, placing the country second only to Luxembourg in terms of international student concentration relative to its total tertiary population.

This surge has sparked concerns among some parents and academics about the impact on domestic students and the quality of education. An Adelaide mother expressed alarm after her daughter, in the fourth year of an undergraduate medical degree, attended a catch-up class where nearly all participants were international students and the session was conducted in Mandarin. She said she was "horrified" and questioned whether such a high proportion of international students influencing classroom teaching was appropriate, emphasizing that domestic students "should not be compromised."

Academics have also raised concerns about academic standards and integrity. At a state parliamentary inquiry held in July, RMIT professor Rob Watts highlighted issues including students with limited English proficiency allegedly relying on cheating or artificial intelligence tools. He warned that academics who voiced such concerns faced potential litigation and threats to their employment. Another anonymous professor mentioned that deferred exams taken overseas were often "inadequately invigilated," raising questions about enforcement of academic integrity.

Universities have defended the need for international student enrolments, citing reduced government funding for tertiary education. Professor Ian Li from the Australian Centre for Student Equity and Success described international fees as essential for maintaining teaching levels for domestic students.

In response to the rapid growth, the Australian government introduced a cap last year limiting new international student admissions to 295,000 annually. Some universities already have substantial international student bodies, with Melbourne University having 46 percent international enrolments, and Monash University and the University of Queensland nearly 40 percent each.

The trend reflects broader shifts in Australia’s higher education sector but continues to evoke debate about the balance between financial sustainability, educational quality, and the experience of domestic students.