CalculateStudent Loan Repayment: Avalanche vs. Snowball
Two proven strategies for paying off student debt faster — and why the strategy you pick matters less than the extra dollars you put toward it.
Two strategies, one goal
If you're paying down more than one student loan at a time, the order you attack them in changes how much interest you pay and how it feels along the way. The Consumer Financial Protection Bureau's own debt-payoff guidance lays out two standard approaches, and picking between them is really a question of what will actually keep you consistent.
The avalanche method: mathematically the cheapest path
Avalanche means directing every extra dollar at the loan with the highest interest rate first, while paying minimums on everything else, then moving to the next-highest rate once that one's cleared. Because it targets the debt that's costing you the most per dollar owed, it minimizes the total interest you pay across all your loans by the time everything's paid off. The tradeoff is that your highest-rate loan isn't always your smallest balance, so progress can feel slower at first if that loan happens to be a large one.
The snowball method: built for motivation, not minimum interest
Snowball means paying off the smallest balance first regardless of its interest rate, then rolling that payment into the next-smallest balance, building momentum as each loan disappears. CFPB's own materials are direct about the tradeoff: you get faster visible wins, which helps some people stick with a payoff plan, but "you may pay more in total because you are not necessarily eliminating your most costly debt" first.
Why extra payments matter more than which method you pick
Whichever order you choose, the bigger lever is simply paying more than the minimum. Take a $30,000 loan at 6% on a standard 10-year term: the baseline payment is roughly $333/month, with about $9,968 in total interest over the full term. Add just $100/month extra and the loan clears in about 85 months instead of 120 — nearly 3 years sooner — with total interest dropping to roughly $6,936, a savings of about $3,000. That's a bigger swing than switching between avalanche and snowball typically produces on its own.
2026-27 federal loan rates
Federal student loan interest rates are fixed for the life of each loan but reset annually every July 1 based on Treasury auction yields plus a statutory add-on. For Direct Loans first disbursed between July 1, 2026 and June 30, 2027: Direct Subsidized and Unsubsidized loans for undergraduates carry 6.52%, Direct Unsubsidized loans for graduate and professional students carry 8.07%, and Direct PLUS loans (graduate and parent) carry 9.07%. A loan disbursed the following year will carry whatever new rate is set for that period — check studentaid.gov's interest rates page for the loan you're actually taking out or currently hold.
Repayment plans have changed — check what's current
This is the fastest-moving part of the picture. The SAVE repayment plan was terminated following a federal court order and is no longer available. The PAYE and ICR plans are being phased out, with a deadline of no later than July 1, 2028 for existing borrowers to move to a different plan. Income-Based Repayment (IBR) remains available. Two new plans took effect July 1, 2026: the Repayment Assistance Plan (RAP), an income-driven option with payments based on a percentage of adjusted gross income and a reduction for each dependent, and a Tiered Standard Repayment Plan with fixed terms based on your loan balance, replacing the old flat 10-year standard plan. Given how much this has shifted in a short window, treat anything you read about repayment plans — including this guide — as a starting point, and confirm your actual options directly on studentaid.gov before choosing one.
Frequently asked questions
Which method actually saves the most money?+
Avalanche, mathematically — it targets the highest interest rate first, minimizing total interest paid across all your loans. Snowball can still be the better real-world choice if it's the one you'll actually stick with.
Can I switch strategies partway through?+
Yes. Neither method is a formal program with your loan servicer — they're just an order you choose to apply extra payments in, so you can change your approach anytime without any paperwork.
Do extra payments automatically go toward principal?+
Not always automatically — some servicers apply extra payments to future scheduled payments (advancing your due date) unless you specifically direct the extra amount toward principal. Check with your servicer, or specify it explicitly with each payment.
What happened to the SAVE plan?+
It was terminated following a federal court order and is no longer available to borrowers. If you were previously enrolled, you'll need to select a currently available repayment plan — check studentaid.gov for your current options.
Sources
Disclaimer: This guide is for general educational purposes and does not constitute financial, tax, legal or medical advice. Rules, rates and thresholds change over time — confirm current figures with the official sources linked above or a qualified professional before making a decision.