Student Loan Payoff Calculator

The average federal student loan balance per borrower in the US is approximately $37,000-$40,000. Graduate degree holders carry significantly more — often $60,000-$100,000+. Bachelor's degree holders who borrowed average around $30,000. Total federal student loan debt nationwide exceeds $1.7 trillion across 43 million borrowers, making it the second-largest household debt category after mortgages.

For federal loans disbursed in 2026: Direct Subsidized and Unsubsidized for undergrads is approximately 6.5%, Direct Unsubsidized for grad/professional is around 8%, and PLUS loans (for parents and grad students) is around 9%. Private student loans range widely from 4-15% depending on credit and cosigner. Refinancing existing federal loans into private loans (when rates are favorable) is a major strategy used by high earners.

Run the math comparing your loan APR to expected investment returns. If your loan is at 4-5%, investing the extra money in index funds (historical 7% real return) usually wins long-term. If your loan is at 7%+, paying it off early is essentially a guaranteed 7%+ return — usually beats investing on a risk-adjusted basis. Either way, always pay at least the minimum, and never sacrifice an employer 401(k) match to pay loans early.

IDR plans (including SAVE, IBR, PAYE, ICR) cap your federal student loan payment at a percentage of your discretionary income — typically 10-20% — and forgive any remaining balance after 20-25 years of payments. They're a lifeline for borrowers whose payment under standard 10-year repayment would exceed what they can afford. The trade-off: you pay more interest over time, and you may owe taxes on forgiven amounts (currently not federally taxed through 2025; status varies after).

PSLF cancels remaining federal Direct Loan balances after 120 qualifying monthly payments (10 years) while working full-time for a qualifying employer — government (federal, state, local, tribal) or a 501(c)(3) nonprofit. Forgiveness is tax-free. Most borrowers also need to be on an IDR plan to maximize forgiveness. Verify employment annually with the PSLF Form, and use the StudentAid.gov PSLF Help Tool to track qualifying employment.

On a $37,000 loan at 6.5% APR with the standard 10-year payment of ~$420/month, adding $100/month extra pays off the loan in about 8 years instead of 10, saving roughly $2,800 in interest. The math compounds with bigger extra payments: $200/month extra cuts the timeline to 6.5 years and saves ~$4,800. There's no prepayment penalty on federal or virtually any private student loans.

Federal loans have fixed rates, income-driven repayment options, deferment and forbearance protections, and forgiveness programs (PSLF, IDR forgiveness). Private loans usually have stricter terms, fewer protections, and require credit checks (often with a cosigner). The main reason to choose private: lower interest rates for borrowers with excellent credit. Once you refinance federal to private, you lose all federal protections permanently — only do it if you're certain about your income stability.

Refinancing federal loans to private makes sense only if: you have stable, well-above-average income; you don't need IDR plans or PSLF; the new rate is at least 1-2 percentage points lower than your weighted average; and you have excellent credit. For private-to-private refinancing, the calculus is simpler — if rates drop or your credit improves significantly, refinance and save. Never refinance federal to private without carefully considering the protections you'd give up.

Federal loans go into default after 270 days of non-payment. Consequences: wage garnishment (up to 15%), tax refund seizure, Social Security garnishment, loss of eligibility for further federal aid, damaged credit (drops 100+ points), and accumulated collection fees of 25%+. Recovery options: rehabilitation (9 voluntary on-time payments removes default), consolidation, or settlement. Private loans can sue and obtain judgments; consequences vary by state law.

Rarely, but it's possible. The 2022 federal guidance made it somewhat easier — borrowers can discharge federal student loans by demonstrating 'undue hardship' through a separate adversarial proceeding using the Brunner test (present hardship + future inability + good-faith effort to repay). Discharge rates remain low (around 40% of those who try). It's expensive and complex — usually requires a bankruptcy attorney. Most borrowers are better served by IDR or PSLF rather than pursuing discharge.