Student loan refinance savings calculator

When refinancing actually saves you money

Student loan refinancing replaces your existing federal and/or private loans with a new private loan at a hopefully lower interest rate. The math of savings is simple: on a $70K balance, dropping from 7.5% to 5.5% over 10 years saves roughly $8,500 in total interest.

Current (2025) refi rates from major lenders:

• SoFi, Earnest, Splash: variable from 4.99%, fixed from 5.24% (excellent credit + high income).
• Laurel Road, ELFI: fixed 5.5–7.0% for most borrowers.
• Credible (marketplace): aggregates rates; typical fixed range 5.5–10% depending on profile.

To qualify for the lowest rates you typically need: 680+ credit score (preferably 720+), stable income of 2× debt amount, and a degree completed. Cosigners help; some lenders require one if income or credit history is marginal.

The federal-to-private trap

Refinancing federal loans into a private loan is permanent and irreversible. You lose:

• Income-driven repayment (SAVE, PAYE, IBR, ICR).
• Public Service Loan Forgiveness eligibility.
• Teacher Loan Forgiveness and other profession-specific programs.
• Federal forbearance and deferment options (though most private lenders offer limited hardship plans).
• Access to federal loan discharge (death, disability, borrower defense).

When refinancing makes sense

1. You have private loans at 7%+. Federal protections aren’t applicable. Lower rate = pure win.
2. You have federal grad PLUS loans at 8%+. These are private-rate-territory anyway. Check if you’re eligible for PSLF; if not, refinancing can save $15K+.
3. You’re earning $100K+ and will pay off in under 10 years. You won’t use IDR; forgiveness isn’t relevant; lower rate = straight savings.
4. You’ve already ruled out PSLF and public service. Final career path is private-sector, and you’ll pay off normally.

Fixed vs. variable

Variable rates start 0.5–1.0% lower than fixed but can rise if the Fed raises rates. With federal funds at 4.25–4.50% (late 2025) and inflation now contained, variable rates are less dangerous than they were in 2022–2023. Rule of thumb: take variable only if you plan to pay off in under 5 years.

Break-even math on refi fees

Most reputable refinance lenders have no origination fees (SoFi, Earnest, Laurel Road). Some charge 0.25–1.0% origination. If the rate drop is 1%+, break-even on a 1% origination fee is typically under 6 months.

Cosigner strategy

Adding a cosigner with strong credit (parent, spouse) can drop your offered rate by 1–2%. Most lenders offer “cosigner release” after 24–36 on-time payments plus income verification — the cosigner is removed and you continue independently. This lets you get low rates initially without trapping the cosigner forever.

Four detailed refi scenarios

Scenario A — Private loan only, strong credit, $45K balance, 8.2% current rate, refi to 5.2% over 10 years: Old payment $550/mo, new $482/mo. Monthly savings $68, total interest saved ~$8,200. Clear win.

Scenario B — Mixed federal + private, $90K total ($60K federal at 6.53% avg, $30K private at 9.1%), borrower earns $85K in private-sector tech: Refinance only the private portion — take it from 9.1% to 5.5%. Keep federal loans as-is in case career changes lead to public service or income drops. Save ~$7,000 interest on the $30K refinance.

Scenario C — Grad PLUS loan at 9.08%, $40K balance, now earning $160K as a BigLaw associate: Refi to 5.0% fixed, 7-year term. Payment $566/mo, total paid $47.5K, total interest ~$7.5K. Vs. standard 10-year federal: ~$14K interest. Save $6,500, and done faster.

Scenario D — Federal loans only, $55K, borrower becomes a teacher earning $48K: Do NOT refinance. SAVE plan payment ~$240/mo vs. standard ~$630/mo. Plus PSLF eligibility after 10 years of public-school teaching = full balance forgiven. Refinancing here would literally cost six figures over a career.

Refi lender comparison (2025-26)

Step-by-step refi process

1. Pull your credit report (free at annualcreditreport.com). Aim for 720+. If under 680, work on score before applying — a single late payment can cost 40 points.
2. Document income. Last 2 pay stubs, W-2s, or tax return for self-employed.
3. Pre-qualify with 3-5 lenders. Pre-qualification uses soft credit pull (no score impact). Compare APRs, terms (5/7/10/15/20 yr), and borrower protections.
4. Pick the best offer. Lowest APR isn’t always the winner — a lender with 6 months hardship forbearance and 5.5% beats one with no forbearance at 5.3% if your career is unstable.
5. Submit full application. Hard credit pull. Underwriting typically 3-10 business days.
6. Sign loan docs. New loan funds pay off old loans. Keep records of the payoff letter from old lenders.
7. Confirm old loans show $0 balance. Check old lender accounts 30 days after funding. Refinance errors (double payments, ghost balances) occasionally happen.
8. Set up autopay. Most refi lenders offer 0.25% rate discount for autopay from their list of supported banks.

Common mistakes in refinancing

• Refinancing federal loans while working in healthcare/nonprofit/education. Forfeits PSLF. Single biggest refi mistake.
• Locking into a long term just to lower the monthly payment. A 20-year refi at 6% on $70K costs $50K more total than a 10-year refi at 5.5%. The monthly savings aren’t “savings” if total interest rises.
• Ignoring variable-rate caps. If you take variable, check lifetime cap. Some cap at +3% above starting rate; others allow unlimited increase.
• Missing promotional windows. SoFi, Earnest, and others offer $300-$500 referral or signup bonuses. Always check promo codes before applying.
• Refinancing too early in career. If income will rise substantially in 2-3 years, waiting to refi at a higher income (which qualifies you for better rates) can save another 1%.

Common questions

Can I refinance multiple times? Yes. If rates drop further or your credit improves, refinance again. Each refi may involve a small paperwork burden but no penalty.

Does refinancing hurt my credit? Initial hard pull: -5 to -15 points, recovered in 3-6 months. Long-term: positive (lower balance, lower utilization over time).

What if I lose my job after refinancing? Private lenders offer limited hardship forbearance (usually 12 months lifetime). Federal loans offer unlimited deferment/forbearance and IDR at $0 if income is near zero. This is the key reason to preserve federal status.

Are there tax implications to refinancing? You can still deduct up to $2,500 of student loan interest on refinanced loans (same as original). Income phase-out begins at $85K single / $175K joint.

What term length should I choose? Shortest you can afford. 5-year term = lowest rate but highest payment. 10-year is the standard sweet spot. 15-20 year terms should be reserved for borrowers with very large balances relative to income.

Can a parent refinance Parent PLUS loans into the student’s name? Yes — a few lenders (Earnest, ELFI, Laurel Road, SoFi) allow transferring Parent PLUS to child. Requires child credit/income qualification. Can save parents who cosigned and want to transfer responsibility.

Should I refi now or wait for rates to drop?Don’t try to time rates. If today’s refi saves you $5K+ over the next decade, lock it in. If rates drop more, refi again.

Rate environment context for April 2026

The Federal Reserve’s policy rate sits at approximately 3.75–4.00% in April 2026 after gradual cuts from the 5.25–5.50% peak in 2024. Student loan refinance rates follow the 10-year Treasury yield plus a credit spread, so current fixed refi rates for prime borrowers with $100K+ income and 740+ credit run 4.85–5.75%. Subprime refinance pricing (660–700 credit, newer graduates) runs 6.50–8.25%. The federal direct unsubsidized undergraduate rate for 2025–26 is 6.53% and the graduate/PLUS rate is 8.05% — so refinancing out of grad PLUS at 5% fixed saves roughly 300 basis points, while refinancing undergraduate federal loans rarely produces more than 100–150 basis points of savings. That’s rarely worth the loss of federal protections for undergraduate balances.

Worked example: medical resident vs BigLaw associate

A second-year medical resident earning $68,000 with $285,000 federal medical school debt at 7.05% (weighted) has SAVE/PAYE payment of ~$375/month. Remaining balance after 6-year residency + fellowship: $305,000 (yes, grew due to interest). If the resident enters academic medicine and pursues PSLF over 4 more years, the PSLF forgiveness potentially eliminates $280,000. Refinancing to 5.5% private in residency seems tempting (saves 155 bps), but forfeits PSLF worth $280,000. Correct answer: do not refinance; ride the federal IDR path. In contrast, a BigLaw third-year associate earning $345,000 with $180,000 federal law school debt at 8.05% can refinance to 4.85% over 7 years. Monthly payment: $2,527. Total interest: $31,940. Vs federal Standard 10-year at 8.05%: $2,187/month, total interest $82,440. Refinancing saves $50,500. The BigLaw associate will pay off in 7 years regardless, has no public-service aspiration, and doesn’t need federal protections.

Six-lender 2025–26 rate comparison

• SoFi: fixed 4.99–9.99%, variable 5.24–9.99%. 5-, 7-, 10-, 15-, 20-year terms. $0 origination fee. Cosigner release after 24 months on-time payments.
• Earnest: fixed 4.49–9.74%, variable 5.49–9.74%. 5–20 year terms. No cosigner option (so no cosigner release needed). Skip-a-payment benefit.
• Laurel Road: fixed 5.24–9.45%. Includes special medical-professional rates for residents (interest-only payments allowed during residency).
• ELFI (Education Loan Finance): fixed 5.08–8.24%. Minimum $15,000 balance to refinance. Strong for large balances (Grad PLUS consolidations).
• Splash Financial: marketplace pulling from SoFi, Laurel Road, and credit unions. Fixed starting around 4.99%. Often best-in-class for borrowers with lower FICO (680–720).
• Credible: marketplace comparing 10+ lenders with soft pull. Good for first-pass rate shopping.

The cosigner economics

Adding a parent cosigner with a 780+ FICO to a refinance application typically drops the offered rate by 100–175 basis points. On $75,000 at 7-year term, that’s $6,000–$10,000 of savings. The cosigner is legally liable for the full balance if you default, and the loan shows on their credit utilization. Most reputable lenders (SoFi, Laurel Road, Citizens) offer cosigner release after 24–36 months of on-time autopay plus income documentation. Earnest has eliminated cosigning entirely — they either underwrite you solo or decline — which simplifies the decision but can exclude young borrowers with thin credit files.

Variable vs fixed: the 2026 decision

In a moderately declining rate environment (Fed cuts priced into markets), variable rates can be attractive if you plan to pay off in 3–4 years. A typical variable rate starts 50–100 bps below the comparable fixed rate. Calculation: on $50,000 at 4.49% variable vs 5.24% fixed over 5 years, the initial monthly payment is $932 variable vs $949 fixed — tiny difference. If SOFR rises 150 bps during the term, variable payment rises to $967 by year 3 and total paid ends up $500 higher than fixed. If SOFR falls 100 bps (plausible if the Fed continues cutting), variable total is $700 below fixed. Rule of thumb: fixed for anything over 5 years, variable only for aggressive short-term payoff.

Frequently asked refinancing questions

• Should I refinance federal loans if I’m already on IDR? Almost never. IDR plus PSLF is the maximum-value federal path. Refinancing to private forfeits all of it.
• What’s the minimum credit score for refinancing? 660 at the lowest-bar lenders (with a cosigner), 680–700 independently. 720+ unlocks the best rates.
• Can I refinance Parent PLUS loans in my own name? Yes — SoFi, Earnest, Laurel Road, and Citizens all allow transferring Parent PLUS to the child/student. Requires child income qualification. Converts from parent-borrower to student-borrower.
• Does refinancing reset my loan term? Only if you choose a new term. You can refinance into a shorter term to save interest, or a longer term for lower monthly payments (costs more total).
• Can I refinance if I didn’t graduate? Some lenders require degree completion (SoFi, Earnest). Others (Splash, Credible marketplace) have lenders that refinance with no degree if income and credit meet thresholds.
• Is refinance interest tax-deductible? Yes, up to $2,500 annually. Phase-out begins $85,000 single / $175,000 joint.
• Can I refinance from federal back to federal? No — federal consolidation (via studentaid.gov) keeps loans federal but doesn’t lower rates. Private refinance lowers rates but converts to private.
• What’s the difference between refinancing and consolidating? Federal consolidation (Direct Consolidation Loan) combines federal loans at the weighted-average rate — no savings, just simplicity. Refinancing is always private and provides a new rate based on market conditions and credit.
• Will I lose my federal $2,500 interest deduction? No — the deduction applies to any qualifying student loan interest, including private refinanced loans.

Related tools

Model the savings with our loan payoff calculator. Before refinancing federal loans, double-check against IDR repayment and PSLF scenarios.