A subsidy on autopilot since 2005
The cost of New Zealand’s policy of treating foreign doctoral students as domestic students has jumped by nearly a quarter to $69 million in 2025, up from $56 million a year earlier. The government has responded by capping next year’s funding at the 2024 level while the Education Ministry reviews whether the scheme still makes sense.
Here is how the policy works. Since 2005, foreign PhD students have paid the same tuition as New Zealanders – about $10,000 a year – with the government topping up a subsidy of roughly the same amount, as if they were domestic students. The goal was to grow the doctoral population and lift university research output. On that measure it worked: international enrolments climbed to around 48 percent of all PhD students before Covid.
But a policy that runs for two decades without anyone checking the invoice tends to get expensive quietly, then loudly. The scheme cost $55 million in 2019, fell to a Covid low of just over $43 million in 2022 when borders closed, then rebounded hard. Tertiary Education Minister Penny Simmonds confirmed the review, noting the number of international PhD learners “has increased quickly, and the cost of the current settings has grown by more than 20 percent a year over the past two years.”
Who we are paying for
There were 5,265 international PhD students enrolled last year, 49 percent of all doctoral enrolments, just below the 5,390 domestic students – a domestic figure that has actually shrunk by roughly 300. Eighty percent of international PhD students came from Asia, with China the largest source at 1,970, followed by India and Sri Lanka.
The concentration matters by field too. Engineering had 1,690 PhD students, of whom 68 percent were international. If you want to know where the research capacity argument is strongest, it is here, in the STEM disciplines that feed export industries and productivity.
The number that breaks the pipeline argument
Universities defend the subsidy on two grounds: it builds research capacity while students are here, and it creates a pipeline of skilled graduates who stay. The second claim does not survive contact with the data. A 2017 Ministry of Education report found 75 percent of foreign PhD graduates had returned overseas within five years of finishing – the highest departure rate of any international student group.
That figure is nine years old and no newer data appears to have been published, which is itself telling. New Zealand has spent two decades and hundreds of millions on a talent pipeline without measuring whether the talent stays. Three in four leave. The taxpayer funds the training; someone else’s economy gets the graduate.
The research-output argument holds up better – these students do produce work while they are here. But it invites a harder question business readers will recognise: is subsidising foreign students the cheapest way to buy that output, or would the same money go further on domestic PhD stipends and post-doctoral positions?
Even the universities aren’t panicking
The most revealing response came from Universities New Zealand chair Neil Quigley, who was notably relaxed about a possible cut. “We’re in a period where the income from these students is not as big a concern as it might be in other situations,” he said, citing domestic enrolment growth. When the sector that benefits from a subsidy shrugs at losing it, that is a signal the subsidy is not load-bearing.
Association of Scientists co-president Troy Baisden was sharper. He credits the policy with lifting university reputations over two decades but says it became “successive governments’ sole policy” while domestic stipends fell behind inflation and post-doc funding dried up, making it harder to attract New Zealanders into doctoral study. His verdict on the cap: “a plaster on an issue that isn’t fixed.”
There is a genuine complication. Tertiary Education Union president Ti Lamusse warns that pushing international fees up would inflate research grant costs, because universities often cover PhD fees from project grants. “It’s a heck of a lot more expensive if you’re paying for the international fees,” he said. A simple fee hike is not free.
What the review has to answer
The cap holds funding at $56 million as a soft ceiling, not a hard enrolment limit. The review is weighing options from a tighter cap to tiering the subsidy by field – favouring engineering and the sciences over social sciences – to shifting international students back toward full fees with targeted scholarships.
The honest conclusion is that this policy is being questioned because the bill got too big to ignore, not because anyone systematically tested whether it was working. That is the pattern. A worthwhile scheme scaled well past its original cost, defended on a pipeline claim the data contradicts, and left on autopilot until the invoice forced a rethink. The review’s job is to fund the research capacity that genuinely benefits New Zealand and stop paying premium rates to train graduates for other countries.
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