See your payoff date, total interest, and what refinancing would cost you in federal protections.
Monthly payment
$426
Clears the balance in 10 years.
A $38,000 balance at 6.20% over 10 years costs $13,085 in interest — 34% of what you borrowed. Interest accrues at roughly $6.45 a day, which is why the payoff date responds so sharply to extra payments.
It would also move your payoff date from 10 years to 6 years, 9 months. Because student loan interest typically accrues daily, extra payments made earlier in the month reduce the accrued balance slightly more than the same payment made later.
Private refinancing can lower the rate, but it permanently forfeits income-driven repayment, deferment and forbearance options, death and disability discharge, and any forgiveness eligibility. Those protections have real value that a rate comparison does not capture. Refinancing makes most sense for private loans already, or for borrowers with stable high incomes and no realistic forgiveness path.
At 6.20%, these loans sit in the range where the answer depends on the alternative. Always capture a full employer 401(k) match first — a 50% match beats a 6.20% guaranteed return decisively. Beyond the match, rates above roughly 7% favor payoff and rates below 5% favor investing.
Check your retirement planWorked scenarios with the full analysis, so you can see how the numbers move before entering your own.
Close to the median US bachelor's degree debt load on the default federal repayment plan.
Monthly payment
$426
A $38,000 balance at 6.20% over 10 years costs $13,085 in interest — 34% of what you borrowed. Interest accrues at roughly $6.45 a day, which is why the payoff date responds so sharply to extra payments.
It would also move your payoff date from 10 years to 6 years, 9 months. Because student loan interest typically accrues daily, extra payments made earlier in the month reduce the accrued balance slightly more than the same payment made later.
Private refinancing can lower the rate, but it permanently forfeits income-driven repayment, deferment and forbearance options, death and disability discharge, and any forgiveness eligibility. Those protections have real value that a rate comparison does not capture. Refinancing makes most sense for private loans already, or for borrowers with stable high incomes and no realistic forgiveness path.
Showing how a moderate overpayment compresses the timeline and cuts total interest.
Monthly payment
$676
A $38,000 balance at 6.20% over 10 years costs $13,085 in interest — 34% of what you borrowed. Interest accrues at roughly $6.45 a day, which is why the payoff date responds so sharply to extra payments.
Paying $676 instead of $426 clears the balance in 5 years, 7 months rather than 10 years. Direct extra payments to the highest-rate loan specifically, and confirm with your servicer that overpayments are applied to principal rather than advancing your due date — servicers frequently default to the latter.
Private refinancing can lower the rate, but it permanently forfeits income-driven repayment, deferment and forbearance options, death and disability discharge, and any forgiveness eligibility. Those protections have real value that a rate comparison does not capture. Refinancing makes most sense for private loans already, or for borrowers with stable high incomes and no realistic forgiveness path.
A professional-degree balance where the payment-to-income ratio becomes the binding constraint.
Monthly payment
$856
A $110,000 balance at 7.05% over 20 years costs $95,472 in interest — 87% of what you borrowed. Interest accrues at roughly $21.25 a day, which is why the payoff date responds so sharply to extra payments.
It would also move your payoff date from 20 years to 14 years, 8 months. Because student loan interest typically accrues daily, extra payments made earlier in the month reduce the accrued balance slightly more than the same payment made later.
When the balance exceeds annual income, standard 10-year repayment is often unrealistic. For federal loans, income-driven repayment with eventual forgiveness may produce a better outcome than aggressive payoff. Public Service Loan Forgiveness is worth investigating specifically if you work for a government or qualifying nonprofit employer — it forgives the remaining balance tax-free after 120 qualifying payments.
Federal loans default to the standard 10-year plan, which produces the highest payment and the lowest total interest. Extended and graduated plans lower the payment by lengthening the term, which raises total cost.
Income-driven repayment plans set the payment as a percentage of discretionary income and forgive the remainder after 20–25 years. They dramatically reduce monthly burden for borrowers whose balance is large relative to income, at the cost of substantially more interest — and, on most plans, a taxable forgiveness event at the end. Public Service Loan Forgiveness is the exception: 120 qualifying payments while working for a government or qualifying nonprofit employer, forgiven tax-free.
Private refinancing replaces federal loans with a private loan, which can lower the rate meaningfully for borrowers with strong credit and stable income. What it also does is permanently remove every federal protection attached to those loans.
You lose access to income-driven repayment, which is the safety net if your income drops. You lose deferment and forbearance rights. You lose death and disability discharge, meaning the debt could pass to a cosigner. And you lose all forgiveness eligibility, including PSLF. None of that is recoverable — you cannot refinance back into the federal system.
Servicers commonly apply overpayments by advancing your next due date rather than reducing principal — which means you pay ahead but save no interest. This is a well-documented and persistent problem.
Send written instructions specifying that overpayments should be applied to principal on the highest-rate loan and that the due date should not advance. Most servicers offer this as a standing setting online. Verify on the next statement that the principal balance actually dropped by the extra amount.
Many servicers advance the due date instead. Written instructions and a statement check are the only way to be sure.
Losing income-driven repayment, forbearance and forgiveness eligibility permanently is rarely worth half a percentage point.
Interest usually continues accruing and capitalizes onto the principal, making the balance larger when payments resume.
Borrowers routinely discover years of payments did not qualify. Annual certification catches the problem while it is still fixable.
A 24% card balance should always be cleared before making extra payments on a 6% student loan.
The standard federal plan is 10 years, and the average borrower takes closer to 20 because of income-driven plans, deferments and forbearances. A $38,000 balance at 6.2% on standard repayment costs about $425 a month and roughly $12,900 in total interest. Adding $250 a month cuts roughly three and a half years and several thousand dollars off that.
Capture the full employer 401(k) match first — no student loan rate beats a 50% instant return. Beyond that, compare the loan rate to a realistic after-tax return. Above roughly 7%, paying off wins because it is guaranteed. Below 5%, investing usually wins. Between them either is defensible, and the psychological value of being debt-free is a legitimate factor.
Up to $2,500 of student loan interest is deductible annually, and it is an above-the-line deduction so you do not need to itemize. It phases out at higher incomes. The deduction reduces the effective rate somewhat — a 6.2% loan at a 22% marginal rate has an effective cost closer to 5.5% for the portion of interest that falls under the cap.
For private loans, refinancing is straightforward — you are only comparing rates. For federal loans it is a permanent forfeit of income-driven repayment, forbearance, disability discharge and all forgiveness eligibility. That is worth doing only with a stable high income, no realistic forgiveness path, and a rate reduction large enough to justify losing the safety net.
PSLF forgives the remaining balance on federal Direct Loans tax-free after 120 qualifying monthly payments while working full time for a government agency or qualifying 501(c)(3) nonprofit. The payments do not need to be consecutive. Certify your employment annually — the most common reason applicants are denied is discovering years later that some payments or employment periods did not qualify.
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