A parent borrowing $30,000 through the federal PLUS loan program for the 2025-2026 school year will pay roughly $382 a month for 10 years and hand over nearly $16,000 in interest before the balance hits zero. That is the reality of the 9.07% fixed rate that took effect on July 1, 2025, the steepest Parent PLUS rate since before the 2008 financial crisis and about $5,000 more in total interest than the same loan would have cost just three years earlier.
The rate applies to all Direct PLUS loans first disbursed between July 1, 2025, and June 30, 2026, covering both Parent PLUS loans for dependent undergraduates and Grad PLUS loans for graduate students. Once locked in, the rate stays fixed for the life of each loan disbursed during that window.
How the rate gets set each year
Congress wrote the formula into law through the Bipartisan Student Loan Certainty Act of 2013. Each spring, the Department of Education takes the high yield from the last 10-year Treasury note auction held before June 1 and adds a fixed margin. For PLUS loans, that margin is 4.6 percentage points, the largest of any federal student loan category. A statutory cap of 10.5% prevents the rate from exceeding that ceiling in any single year.
For the 2025-2026 loan year, the determining auction was the 10-year Treasury note auction held on May 7, 2025, which produced a high yield of 4.342%. Adding the statutory 4.6-percentage-point margin brings the PLUS rate to 8.942%, which rounds to the published rate of 9.07% after the Department applies its standard rounding convention. (The Department rounds to the nearest one-eighth of a percentage point.)
Because the 10-year Treasury yield reflects investor expectations about inflation, federal deficits, and global demand for U.S. debt, those forces pass directly through to what parents pay. When Treasury yields were near historic lows during the pandemic, PLUS rates dipped below 6%. As yields climbed through 2023 and 2024, PLUS rates followed.
The Department of Education publishes annual rate determinations each spring after the qualifying auction. Historical rate data maintained by Federal Student Aid and federal loan servicers including MOHELA confirm that 9.07% is the highest PLUS rate since the program adopted annual Treasury-linked resets.
What $30,000 in PLUS loans actually costs at 9.07%
On the standard 10-year repayment plan, a $30,000 Parent PLUS loan at 9.07% produces a monthly payment of about $382 and total interest of approximately $15,840. The total amount repaid: roughly $45,840.
Compare that with the 2021-2022 loan year, when the PLUS rate was 6.28%. The same $30,000 loan carried a monthly payment of about $337 and total interest near $10,400. The gap: $45 more per month and more than $5,000 in extra interest over the life of the loan.
Those figures do not include the federal loan origination fee, which adds to the effective cost. For PLUS loans disbursed after October 1, 2024, the origination fee is 4.228%, meaning a parent who borrows $30,000 on paper receives roughly $28,730 after the fee is deducted. The full $30,000 still accrues interest and must be repaid in full.
For families borrowing across all four years of a student’s degree, the numbers compound. A parent taking out $30,000 annually at rates near 9% could face total interest charges exceeding $60,000 over the combined repayment periods, a figure that approaches the principal itself.
Why parents keep borrowing at these rates
Federal borrowing limits for dependent undergraduates cap at $31,000 in total Direct Subsidized and Unsubsidized Loans over a four-year degree, according to Federal Student Aid. At many four-year institutions, that covers only a fraction of the sticker price. Parent PLUS loans exist to fill the gap, and they remain popular in part because they carry no aggregate borrowing limit beyond the school-certified cost of attendance.
Federal protections also keep families in the PLUS program. Borrowers can access income-contingent repayment, defer payments while a student is enrolled at least half-time, and in some cases qualify for Public Service Loan Forgiveness. Private lenders may advertise lower rates for applicants with strong credit, but they rarely match those safety nets.
Still, financial aid professionals say the 9% threshold is changing the conversation. The National Association of Student Financial Aid Administrators has flagged that counselors are spending more time walking parents through the true lifetime cost of PLUS borrowing as rates have risen. Some middle-income families are rethinking four-year residential plans altogether, weighing whether a student should start at a community college, transfer to a lower-cost public university, or work more hours to shrink the borrowing gap.
What parents can do before signing
Families staring at a 9.07% rate have several options. None eliminate the sting, but each can meaningfully reduce total cost.
Max out student borrowing first. Direct Subsidized and Unsubsidized Loans carry significantly lower rates. For the 2025-2026 loan year, undergraduate Direct Loans are priced well below 9.07%. Every dollar a student borrows at the lower rate is a dollar a parent does not need to borrow at the PLUS rate.
Appeal the financial aid package. Most colleges have a professional judgment or financial aid appeal process. If a family’s income has dropped, medical bills have spiked, or another sibling is entering college, a successful appeal can increase grant aid and shrink the amount that needs to be borrowed.
Pay more than the minimum. An extra $100 per month on a $30,000 PLUS loan at 9.07% can cut roughly two and a half years off the repayment timeline and save thousands in interest. Even modest overpayments in the first few years, when the interest-to-principal ratio is highest, make a measurable difference.
Weigh refinancing carefully. Private refinancing may offer a lower rate for borrowers with excellent credit and stable income, but it permanently surrenders federal protections: income-contingent repayment, deferment options, and any future forgiveness eligibility. That trade-off deserves a spreadsheet, not a gut feeling.
A formula Congress has not touched since 2013
The statutory framework behind the 9.07% rate has been in place for over a decade. The Congressional Research Service has documented the margins and caps for each loan type, and proposals to lower the PLUS margin or restructure the formula have surfaced in congressional hearings over the years. None have advanced into law.
Until Congress revisits the formula, the PLUS rate will keep tracking the 10-year Treasury yield. If yields stay elevated or climb further, the 2026-2027 rate could push closer to the 10.5% statutory cap. If yields fall, parents will get some relief, but the 4.6-point margin ensures PLUS loans will always be the most expensive product in the federal student loan lineup.
For the millions of families who signed PLUS promissory notes during the 2024-2025 and 2025-2026 loan years, 9.07% is not a policy abstraction. It is the number on their billing statements, and it will shape household budgets for the next decade. Whether that pressure finally moves Congress to act, or whether families simply absorb the cost as they have before, is playing out in real time as the 2025-2026 disbursement window nears its close in June 2026.
