Will New Student Loan Limits Actually Drive Down Tuition?

As the Trump administration prepares to implement sweeping new limits on federal graduate student loans starting July 1, economists are sharply divided on whether the policy will succeed in its stated goal: forcing colleges to lower tuition prices. The changes, enacted through the One Big Beautiful Bill Act (OBBBA), eliminate the Grad PLUS program and cap most graduate borrowing at $20,500 per year, with a $100,000 lifetime limit.

The Policy at a Glance

The new rules, which take effect July 1, end the Grad PLUS program that since 2006 had allowed graduate students to borrow up to the full cost of attendance with no annual or aggregate limits. Under the new framework, most graduate students face a $20,500 annual cap and $100,000 lifetime limit, while students in 11 designated professional degree programs—including medicine, law, and dentistry—can borrow up to $50,000 per year with a $200,000 lifetime cap, as reported by NPR.

U.S. Secretary of Education Linda McMahon has defended the policy as a necessary intervention. “College costs are just exorbitant. Students are burdened with debt,” McMahon told the House education committee in May. “We really have to do something to bring down the cost of college.”

The Bennett Hypothesis: A Decades-Old Debate

The policy is rooted in the “Bennett Hypothesis,” named after former Education Secretary William Bennett, who argued in a 1987 New York Times op-ed that increases in federal student aid enabled colleges to raise tuition, confident that loan subsidies would cushion the increase. Republicans now argue that capping loans will reverse this dynamic, forcing price-sensitive students to choose cheaper programs and compelling expensive schools to compete on cost.

Research by economist Jeff Denning of the University of Texas at Austin found that for every additional dollar in Grad PLUS loans, graduate programs raised prices by $0.64, according to a National Bureau of Economic Research working paper. The logic suggests that reducing loans should produce the opposite effect.

Why Economists Are Skeptical

Despite this evidence, the half-dozen economists interviewed by NPR broadly agreed that dramatic price cuts are unlikely. Robert Kelchen, a professor of higher education at the University of Tennessee, Knoxville, told NPR: “I did not find evidence” of a direct connection between federal aid and prices in his own research on business, medical, and law schools. He described the evidence backing the Bennett Hypothesis as “largely mixed.”

Sandy Baum, a senior fellow at the Urban Institute, acknowledged that unlimited Grad PLUS borrowing was flawed policy but called the new limits “extreme.” She noted that price hikes have been driven by multiple factors—including “cost disease,” rising insurance and technology costs, and the cost of living—that loan caps alone cannot address.

Medical school presents a particular challenge. As Kelchen explained, medical education is “wildly unprofitable” for schools, with some programs costing $1 million to produce a single degree. Capping loans does not reduce those underlying costs.

Early Signs of Price Pressure

Supporters point to early evidence that some universities are already cutting prices. The Education Department has highlighted several programs that have reduced tuition or expanded scholarships ahead of the July 1 deadline, including UC Irvine’s Merage School of Business, which cut its Flex MBA from $129,000 to $99,000, and Purdue University, which reduced its online MBA by 40% to approximately $36,000, as reported by CNBC.

Preston Cooper of the American Enterprise Institute, who supports the policy, cautioned against expecting immediate results. “I don’t want to promise that, in the first year, everybody’s going to slash their costs,” Cooper told NPR. “But I do think that this is going to create some pressure over time.”

Legal Challenges and Unintended Consequences

The policy faces significant legal hurdles. On June 25, U.S. District Judge Beryl Howell temporarily blocked the Education Department’s definition of “professional degree,” which limits the higher borrowing caps to just 11 programs. The ruling came in response to a lawsuit filed by nurse and physician assistant associations, who argue the definition arbitrarily excludes fields like nursing and education, as CNBC reported. A separate lawsuit brought by 25 states and the District of Columbia is also pending.

Critics warn of several potential unintended consequences. Dominique Baker, a professor at the University of Delaware, cautioned that reducing access to financial aid historically leads to students stopping enrollment, particularly low-income students who may lack the credit history for private loans. The Education Department estimates the caps will affect roughly 30% of graduate borrowers.

There are also concerns about workforce shortages. New York Attorney General Letitia James, who is leading the states’ lawsuit, argued the rule “will shut talented people out of critical professions and leave communities with fewer health care providers they desperately need.”

What to Watch

As the July 1 implementation date arrives, several questions remain unanswered. Will top-tier programs like Harvard and Stanford, which face excess demand, have any incentive to cut prices? Will students shift to private loans, potentially increasing their financial risk? And how will the courts ultimately rule on the professional degree definition?

The Congressional Budget Office estimates the policy will save taxpayers $51.8 billion over 10 years from reduced loan forgiveness. But for the students and universities navigating this new landscape, the most pressing question is whether tuition will actually fall—or whether the burden will simply shift elsewhere.