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Federal student loan interest rates just went up — again. The May 12, 2026 Treasury 10-year note auction set the new undergraduate rate at 6.52%, with Grad PLUS and Parent PLUS loans hitting a staggering 9.07%. If you’re a borrower right now, you’re probably asking: is this even worth it anymore? The short answer is that it depends on your situation, but the numbers are getting harder to stomach. This guide walks through the new rates, what the OBBB changes mean for your loans, and how to build a payoff plan that actually works in this environment.

The 2026-27 Rates: How Bad Is It?

Here’s where we landed after the May auction. The 10-year Treasury note came in at 4.52%, and Congress mandates that federal student loan rates are the 10-year T-note plus a fixed margin: 2.05% for undergrads, 3.60% for grad students, and 4.60% for PLUS loans. That gives us 6.52% for undergrads, 8.07% for grad loans, and 9.07% for PLUS (Federal Register, May 1, 2026 — OBBB final regulations).

To put that in perspective, PLUS at 9.07% is the highest since the 2006-07 academic year. The undergrad rate has more than doubled in six years: 2.75% (2020-21) → 3.73% → 4.99% → 5.50% → 6.39% → 6.52%. That’s a painful climb, especially for borrowers who took out loans when rates were near all-time lows and are now watching new borrowers get crushed by rates that feel more like credit card debt than education financing.

The OBBB Overhaul: What Changes and What’s Going Away

The One Big Beautiful Bill (officially the “Working Families Tax Cuts Act”) signed earlier this year made major cuts to federal student loan programs. The biggest change: Grad PLUS is being phased out entirely. Starting in 2028-29, graduate students will only be able to borrow under the Grad Direct Loan program, which actually carries a lower rate than PLUS (8.07% vs 9.07%) but has a new lifetime cap of $257,500. That cap applies across both undergrad and grad borrowing, which is a significant reduction for students pursuing expensive professional degrees.

The OBBB also retires three income-driven repayment plans — ICR, PAYE, and SAVE — and replaces them with two new options effective July 2027: the Repayment Assistance Plan (RAP) and the Tiered Standard plan. RAP caps payments at 10% of discretionary income and forgives balances after 20 years (undergrad) or 25 years (grad). The Tiered Standard plan starts payments lower and gradually ramps them up, designed for borrowers whose income is expected to grow steadily. If you’re already on SAVE or PAYE, you can stay on your current plan, but new borrowers after July 2027 won’t have those options.

Is the OBBB a fair deal? Honestly, it depends on your perspective. If you’re a graduate student in a high-cost field like medicine or law, the $257,500 cap combined with the loss of Grad PLUS is a real gut punch. If you’re an undergrad borrowing modest amounts, the changes are more manageable — but the rates themselves are the bigger problem.

Avalanche vs Snowball at 6.52% (or 9.07%)

The debt avalanche method — targeting the highest interest rate first — has always made mathematical sense, but it’s almost a no-brainer at today’s rates. If you carry a PLUS loan at 9.07% and an undergrad loan at 6.52%, every dollar you put toward the PLUS loan earns a guaranteed 9.07% return by avoiding future interest. That’s better than most investment returns, and it’s risk-free.

The snowball method (smallest balance first) still has its fans, and the psychological boost of killing a loan completely is real. But here’s the thing: when rates are this high, the math gap between avalanche and snowball is wider than it’s been in years. A 9.07% loan costs nearly 40% more in interest per dollar than a 6.52% loan. Run the scenarios through a loan calculator and you’ll see the difference measured in thousands, not hundreds.

The Refinancing Question: Worth the Risk?

With undergrad rates at 6.52% and PLUS loans at 9.07%, private refinancing offers are suddenly a lot more tempting. If you have a 750+ credit score and stable income, you might qualify for a 5-6% private rate, which could save real money. But here’s the trade-off: you lose everything federal. No RAP, no Tiered Standard, no income-driven options if you lose your job, no deferment or forbearance beyond what the private lender offers, and no forgiveness pathways.

Is that worth 1-3 percentage points? For a doctor or lawyer with a six-figure income and a $200,000+ balance, probably yes. For a recent grad earning $50,000 with $30,000 in loans, probably not. The federal safety net is worth more when your income is uncertain. And with the new RAP plan capping payments at 10% of income, low-earning borrowers have better protection than they would with any private lender.

Personally, I think the PLUS rate at 9.07% is borderline predatory. Congress sets these rates, and they're tied to an auction that has nothing to do with a student’s ability to repay. Parent PLUS borrowers are especially squeezed — they can’t access the better rates that their children could get through Direct loans. If you’re a parent looking at 9.07% to help your kid through school, I wouldn’t blame you for exploring private options or reconsidering how much to borrow at all. Use CalcInstant’s loan calculator to compare what 9.07% vs a private rate actually means for your monthly payment.

Sample Payoff Plan: Dealing With Mixed-Rate Loans

Let’s say you graduated with a mixed portfolio: $20,000 in undergrad loans at 6.52%, $15,000 in Grad Direct at 8.07%, and no PLUS loans. Your weighted average rate is about 7.18%. On the standard 10-year plan, that’s roughly $410 per month and about $49,000 total repaid. If you add $100 per month extra — $510 total — and target the Grad Direct loan first (avalanche), you finish in about 7.5 years and save roughly $4,500 in interest. Not a huge monthly sacrifice for meaningful savings.

Now imagine you also have a $10,000 PLUS loan at 9.07% on top of that. Your weighted average jumps to 7.8%, and the standard payment is around $475. Attack that PLUS loan first with the avalanche method, and you’ll feel the progress faster because the balance is smaller. Use CalcInstant’s debt payoff calculator to build a custom plan for your actual loan stack.

Extra Payments Matter More Than Ever

Here’s a stat that might shock you: on a $30,000 loan at the 2020-21 rate of 2.75%, total interest over 10 years is about $4,400. On that same $30,000 loan at 6.52% — the rate for new undergrad borrowers this fall — total interest jumps to about $11,000. That’s nearly 2.5 times more interest on the same principal, all because the rate doubled. Adding $50 per month to the 6.52% loan saves about $3,800 in interest and shaves over 3 years off the term. Every extra dollar you send to principal is a direct hedge against these rate increases.

Try the Calculators

Run your own numbers with CalcInstant’s tools. The loan calculator handles standard vs accelerated repayment, and the debt payoff calculator lets you build avalanche or snowball strategies across multiple loans:

Then model extra payments and see exactly how much interest you can save:

Also check our Compound Interest Calculator to see how the money you save on loan interest could grow if invested instead.

Data sources: U.S. Treasury 10-year note auction, May 12, 2026; Federal Register, May 1, 2026 — One Big Beautiful Bill final regulations.