What is the difference between a fixed and a variable rate?

A fixed rate stays the same for the life of the loan, so the payment is predictable. A variable rate is tied to a benchmark index and can go up or down over time, which means the payment can change.

Is a variable rate always lower?

Not necessarily. A variable rate may start lower than a fixed rate offered at the same time, but it can rise later. What you're offered depends on each lender and your profile.

Do I lose federal benefits if I refinance?

If you refinance federal student loans with a private lender, you lose federal protections such as income-driven repayment, forgiveness programs and federal deferment or forbearance.

Fixed vs. Variable Rates When Refinancing Student Loans

When you refinance student loans with a private lender, one of the first choices you'll face is whether to take a fixed or a variable rate. Neither is automatically better. The right fit depends on your budget, how long you expect to take to repay, and how much payment uncertainty you can live with.

How a fixed rate works

A fixed rate is set when the loan is made and doesn't change. Your monthly payment stays the same for the whole term, which makes budgeting simpler. The trade-off is that if market rates fall later, your rate stays where it is unless you refinance again.

How a variable rate works

A variable rate is usually a benchmark index plus a margin set by the lender. As the index moves, your rate — and your payment — can move too, typically on a set schedule. A variable rate may start lower than a fixed rate offered at the same time, but there's no guarantee it stays that way.

Trade-offs to weigh

Payment certainty: a fixed rate keeps the payment steady; a variable rate can change it.
Time horizon: a variable rate carries more risk the longer you expect to take to repay, since there's more time for rates to rise.
Rate caps: some variable-rate loans cap how high the rate can go. Ask what the cap is, if any.
Total cost: compare APR and term across offers, not just the starting rate. Our guide on comparing offers by APR, fees and term walks through this.

Don't forget the federal trade-off

Whatever rate type you choose, refinancing federal student loans with a private lender means losing federal protections such as income-driven repayment, forgiveness programs and federal deferment or forbearance, and the loan can't be moved back into the federal program. Refinancing private loans doesn't carry that trade-off. See what to know before refinancing student loans for more.

Questions to ask a lender

If the rate is variable, what index is it tied to, how often can it change, and is there a cap?
Are there origination or other fees?
What hardship options are available if your income drops?
Can a cosigner be released later?

For the full process, see our guide on how to refinance student loans, step by step.

Lendara is a marketplace, not a lender. Lendara receives compensation from partners, which may impact which offers appear and their order; we don't include all offers available. Participating lenders set their own rates and terms, which vary by applicant and aren't guaranteed. When you're ready, you can explore student loan refinancing options from participating lenders.

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Lendara is a marketplace, not a lender. We do not make credit decisions. Offers, rates and terms are provided by third-party partners, vary by applicant and are not guaranteed. This article is general information, not financial advice.