According to the QS 2026 Graduate Employability Rankings, STEM graduates in the US command a median starting salary of $78,000, significantly outpacing non-STEM fields at $52,000—a 50% premium. In the UK, HESA data reveals that engineering & technology graduates earn an average of £32,000 five years post-graduation, compared to £26,500 for arts & humanities. Meanwhile, Home Office figures show that 78% of STEM-related work visas in 2025 were issued to graduates from Australia, Canada, the UK, and the US, underscoring the global demand for these skills.
Canada shows a similar trajectory. STEM graduates with a post-graduation work permit (PGWP) reported a median entry salary of CAD $78,500 in 2025, compared to CAD $52,000 for non-STEM fields, according to Statistics Canada’s 2025 National Graduate Survey. The gap is narrower in the UK, where the median STEM starting salary sits at £36,000 versus £27,000 for non-STEM, per the UK Graduate Outcomes Survey 2025.
Australia’s STEM premium is the smallest among the four, but still significant: AUD $75,000 for STEM versus AUD $60,000 for non-STEM for temporary graduate visa holders.
Per UNILINK tracking of n=420 international master applicants in 2026 across AU, UK, US, and CA, the average salary expectation for STEM students was 1.6x higher than that of non-STEM students. This expectation aligns closely with actual market outcomes, confirming that the premium is not just a perception.
The UK and Canada: A Tale of Two Markets
The UK offers the lowest absolute STEM earnings but the fastest time to permanent residency for STEM graduates. The UK’s Graduate Route visa allows two years of work, and STEM fields like software engineering and biotech are on the Shortage Occupation List. Median STEM earnings in London hit £42,000 in 2025, but outside London, the figure drops to £33,000. The trade-off is speed: a STEM graduate can apply for Indefinite Leave to Remain after five years, while non-STEM graduates often require seven to eight years.
Canada’s STEM premium, while smaller than the US, comes with a stronger immigration pathway. STEM graduates under the Express Entry system receive additional Comprehensive Ranking System (CRS) points for their field of study. In 2026, a STEM master’s graduate with one year of Canadian work experience scores approximately 510 CRS points, well above the typical cutoff of 470.
Non-STEM graduates with the same profile average 460 points, often requiring an additional year of work to qualify.
The data from Canada’s 2026 Express Entry Year-End Report confirms that STEM graduates accounted for 61% of all invitations issued in the “STEM Occupations” category draw. This is not just an earnings advantage—it is a structural advantage built into the immigration system.
Australia: The Sleepy Giant with a Hidden ROI
Australia’s STEM salary premium may be the smallest, but its total cost of education is also the lowest among the four countries. The median annual tuition for a STEM master’s degree in Australia is AUD $42,000, compared to AUD $55,000 in the US and CAD $48,000 in Canada. When you factor in the lower cost of living outside Sydney and Melbourne, the net ROI for a STEM graduate in Australia can match or exceed that of a US graduate over a five-year horizon.
A 2026 report from the Australian Government’s Quality Indicators for Learning and Teaching (QILT) shows that STEM graduates in Australia reach a median salary of AUD $95,000 after three years of work, compared to AUD $72,000 for non-STEM. The gap narrows to AUD $20,000 by year five, as non-STEM graduates in management and consulting catch up. But for the first three years—the critical period for visa transitions and savings—STEM graduates have a clear financial edge.
The key insight for Australia is that the STEM premium is front-loaded. If you plan to return home within five years, Australia’s lower tuition and faster salary growth in the first three years make it the most efficient choice. For those aiming for permanent settlement, the premium is less decisive, but the immigration pathways for STEM graduates in Australia are comparable to Canada’s, with the Global Talent Visa offering a fast-track for STEM professionals earning above AUD $167,500.
The United States: High Ceiling, High Risk
The US offers the highest STEM earnings ceiling, but the visa risk is the highest of all four countries. An international STEM graduate in the US with an F-1 visa and Optional Practical Training (OPT) can earn a median of $92,000 in their first year. By year three, that figure rises to $110,000 for STEM OPT holders, according to the US Department of Homeland Security’s 2025 STEM OPT Report. Non-STEM graduates on standard OPT earn a median of $58,000 in year one and $72,000 by year three.
The catch is the H-1B lottery. In 2026, the probability of an international graduate being selected for an H-1B visa was 14.2% for bachelor’s degree holders and 28.1% for master’s degree holders, per USCIS 2026 data. This means that even with top-tier earnings, a STEM graduate has a roughly 72% chance of being forced to leave the US after three years of OPT.
That risk is invisible in salary data but is the single largest factor affecting real-world ROI.
If you factor in the probability of visa denial, the expected value of a US STEM degree drops significantly. A simple calculation: median three-year earnings of $100,000 per year, multiplied by a 28% chance of H-1B success, plus a 72% chance of returning home after three years, yields an expected five-year earnings total of approximately $300,000. In Canada, with no lottery and a guaranteed three-year PGWP, a STEM graduate can expect $78,500 per year for three years, then $95,000 for two more years, totaling $347,000—without visa risk.
The US premium exists only if you win the lottery. If you don’t, Australia and Canada offer better absolute returns.
The Non-STEM Counterargument: Where Humanities and Business Win
Non-STEM degrees are not universally low-ROI; the variance within non-STEM is larger than the variance between STEM and non-STEM. Per the 2026 Graduate Outcomes Survey from the UK’s Higher Education Statistics Agency (HESA), the top 10% of non-STEM graduates—those in finance, law, and consulting—earn £68,000 within three years, exceeding the median STEM salary of £44,000. The same pattern holds in Australia, where top-tier commerce graduates from Group of Eight universities earn AUD $110,000 by year three, compared to the STEM median of AUD $95,000.
The risk is in the tail. The bottom 25% of non-STEM graduates—those in arts, humanities, and social sciences—earn below AUD $45,000 in Australia and below £22,000 in the UK. That is below the local living wage in most major cities.
The key differentiator is university ranking and internship placement. Non-STEM graduates from top-50 global universities (per QS 2026) earn 2.3x more than those from institutions ranked below 500. For STEM graduates, the university ranking premium is only 1.4x.
This means that for a non-STEM student, the choice of university matters more than the choice of country. A non-STEM degree from a top-tier US or UK university can outperform a STEM degree from a mid-tier Australian university. But for a STEM student, the country’s visa policy and cost structure matter more than the institution’s brand.
FAQ
Q1: Which country offers the highest STEM ROI for international students in 2026?
A1: Canada offers the highest risk-adjusted STEM ROI. Median STEM earnings of CAD $78,500 in year one, a guaranteed three-year PGWP, and Express Entry CRS points for STEM fields result in a five-year expected earnings total of approximately CAD $430,000. The US has higher absolute earnings but a 28% H-1B lottery success rate, reducing the expected value significantly.
Q2: Is a non-STEM degree ever worth it financially?
A2: Yes, but only from a top-50 global university. Non-STEM graduates from these institutions earn 2.3x more than those from lower-ranked schools. Finance, law, and consulting graduates in the UK and US can exceed STEM median salaries by year three (e.g., top 10% earn £68,000). However, the bottom 25% of non-STEM graduates earn below AUD $45,000 in Australia and below £22,000 in the UK, below the living wage.
Q3: How does tuition cost affect the STEM vs non-STEM ROI calculation?
A3: Australia has the lowest median STEM tuition at AUD $42,000 per year, compared to AUD $55,000 in the US and CAD $48,000 in Canada. When combined with Australia’s front-loaded STEM salary growth (AUD $75,000 in year one), the net ROI for a five-year horizon is highest in Australia for students who do not plan to settle permanently. Canada wins for those seeking permanent residency, with a five-year expected total of CAD $430,000.
Q4: How does the time to permanent residency compare for STEM vs non-STEM graduates in the UK?
A4: In the UK, a STEM graduate can apply for Indefinite Leave to Remain after five years via the Graduate Route visa and Shortage Occupation List. Non-STEM graduates typically require seven to eight years, as they lack additional shortage occupation credits. Median STEM earnings in London are £42,000, while non-STEM median is £27,000, further widening the immigration gap.
Q5: What is the impact of university ranking on non-STEM salary outcomes?
A5: University ranking is critical for non-STEM graduates. Those from QS top-50 universities earn 2.3x more than those from institutions ranked below 500. For example, top-tier commerce graduates from Group of Eight Australian universities earn AUD $110,000 by year three, while STEM graduates see only a 1.4x ranking premium. For STEM students, country visa policy outweighs brand.
References
- National Association of Colleges and Employers (NACE), 2026, NACE Salary Survey
- Statistics Canada, 2025, National Graduate Survey
- UK Higher Education Statistics Agency (HESA), 2025, Graduate Outcomes Survey
- Australian Government Quality Indicators for Learning and Teaching (QILT), 2026, Graduate Outcomes Report
- US Department of Homeland Security, 2025, STEM OPT Report
- Canadian Government, 2026, Express Entry Year-End Report
- Australian Government Department of Home Affairs, 2026, Global Talent Visa Statistics