To refinance your student loans, you apply with a private lender who pays off your existing balances and issues you a single new loan with a new rate, term, and monthly payment. Fixed rates currently run from roughly 3.95% to over 10%, depending on your credit and the term you pick. The mechanics are simple. The harder question, and the one worth answering first, is whether refinancing is right for your loans at all, because refinancing a federal loan into a private one permanently gives up protections you can’t get back.
Should You Refinance in the First Place
Refinancing works best when you hold private student loans, or federal loans you’re confident you’ll never need federal protections for. If your credit has improved since you first borrowed, or market rates have dropped below your current rate, a refinance can cut your total interest meaningfully. Borrowers with stable income and strong credit often trim one to two percentage points, which on a six-figure balance adds up quickly.
The calculation flips if you have federal loans and benefit from, or might someday benefit from, federal programs. Income-driven repayment plans like SAVE, PAYE, and IBR are available only for federal loans; private loans don’t qualify. Public Service Loan Forgiveness is the same story: only Direct Loans repaid under a qualifying plan while you work for an eligible employer count toward forgiveness. The moment you refinance a federal loan, those options disappear permanently. If you’re three years into a ten-year PSLF track, refinancing could cost you far more in lost forgiveness than you’d save in interest.
Federal loans also carry built-in deferment and forbearance rights during hardship. Private lenders sometimes offer temporary relief, but it’s discretionary and governed by your loan contract. If job stability is a concern, keeping federal loans federal is often the smarter move, even when a lower rate looks tempting on paper.
What Lenders Require to Approve You
Private lenders evaluate a few core metrics. Debt-to-income ratio is the biggest: most want your total monthly debt payments compared to gross monthly income somewhere in the mid-30% range or below, though the exact threshold varies. A lower ratio tells the lender you have room in your budget for the new payment.
Credit scores carry significant weight. Most lenders set a floor around 650 to 700, with the best rates reserved for scores above 750. If your score falls short, a creditworthy co-signer can bridge the gap, and some lenders will approve the application largely on the co-signer’s profile. Navy Federal Credit Union, for example, allows approval with borrower income as low as $100 per month if the co-signer earns at least $2,000 monthly.
Employment and income stability matter, though specifics vary. Some lenders want a steady job history; others accept a signed offer letter. Most require proof you graduated, because degree holders default at significantly lower rates. Lenders also set balance floors and ceilings. Earnest, for instance, refinances balances from $5,000 up to $550,000.
Documents to Gather Before You Apply
Pull your paperwork together first. You’ll need your Social Security number and a government-issued ID for identity verification. For income, have your two most recent pay stubs and the last two years of W-2 or 1099 forms. Self-employed? Have your federal tax returns and profit-and-loss statements ready.
You’ll also need precise information on the loans you want to refinance. Log into the Federal Student Aid website for federal loan details, or your private servicer’s portal for private ones, and request a payoff quote from each. Those quotes include roughly ten days of accrued interest to account for processing, so the payoff amount will run slightly higher than your current balance. During the application, you select exactly which loans to roll in and leave the rest alone.
Picking a Rate Type and Term
Two decisions shape the new loan: fixed versus variable rate, and term length.
A fixed rate stays the same for the life of the loan. A variable rate starts lower but moves with a market index, so your payment can rise. Variable rates make more sense on shorter terms, where you’ll pay the balance off before rates have much time to climb. On a 15-year term, a variable rate is more of a gamble.
Terms typically run from 5 to 20 years. Shorter terms mean higher monthly payments but less total interest and usually a lower rate. Longer terms reduce the monthly payment but cost more overall. Run the numbers both ways. A borrower picking a 5-year term over a 15-year term on a $50,000 balance might save tens of thousands in interest, while roughly doubling the monthly payment. The right answer depends on your cash flow.
The Application Steps
Most lenders let you pre-qualify with a soft credit check that doesn’t affect your score. Pre-qualification returns estimated rates and terms based on basic information, so comparing three or four lenders costs nothing and often reveals meaningful rate differences.
Once you pick a lender and formally apply, that lender runs a hard inquiry. A hard pull usually drops your score by fewer than five points and affects your credit for up to a year. Submit multiple refinancing applications within a short window and credit scoring models generally treat them as a single inquiry, so efficient rate-shopping isn’t penalized.
After the lender reviews your documents, you’ll receive disclosures required by federal regulation covering the interest rate (and whether it’s fixed or variable), fees, repayment and deferral options, and an estimate of total loan cost. The lender must also tell you about the federal student aid alternatives you may be giving up. Use these to compare the true cost of the new loan against what you’re paying now.
If you accept, you sign a promissory note, which is the legally binding contract for the new debt. The lender then sends payoff funds directly to your old servicers. Keep making payments to those old servicers until each one confirms a zero balance. Payments and payoffs can cross in transit, and you don’t want a missed-payment mark on your credit report from a processing delay.
What You Lose When Federal Loans Become Private
Refinancing a federal loan into a private one changes the legal framework governing your debt. Your loan is no longer covered by the Higher Education Act or the federal regulations built to protect government borrowers. The promissory note you sign with the private lender becomes the sole authority on your rights.
- Income-driven repayment plans like SAVE, PAYE, and IBR are exclusively for federal loans. Private lenders set their own schedules with no obligation to tie payments to income.
- Public Service Loan Forgiveness and the forgiveness built into income-driven plans don’t apply to private debt under any circumstances.
- Federal loans don’t enter default until you’ve missed payments for 270 days. Private lenders can declare default much sooner, some after a single missed payment, and most charge off the loan after about 120 days of non-payment.
- Federal deferment and forbearance rights are statutory. Any relief a private lender offers is contractual and discretionary.
This change is permanent. Even if Congress later expands federal loan benefits, those changes won’t reach your refinanced private loan, and there’s no pathway back into the federal system.
Special Situations
Active-Duty Military and the SCRA
Active-duty servicemembers should think carefully before refinancing. The Servicemembers Civil Relief Act caps interest at 6% per year on debts incurred before entering military service, covering interest, service charges, renewal charges, and most fees. The key word is “before.” If you refinance while on active duty, you’ve effectively created a new loan that originated during service, which may make you ineligible for the cap on the refinanced debt. The Department of Justice has specifically warned that refinancing or consolidation can eliminate SCRA eligibility for this reason.
Using a Co-Signer
If your credit or income doesn’t qualify you alone, a co-signer can get you approved and may secure a lower rate. The co-signer takes real risk: they’re equally liable for the full balance, and a default hits their credit report along with yours. Many lenders offer co-signer release after a period of on-time payments. Sallie Mae, for example, allows release after 12 consecutive on-time principal-and-interest payments, though payments made during school, grace periods, or separation don’t count. Other lenders set their own thresholds, typically between 12 and 48 months. Before choosing a lender, confirm whether co-signer release is offered at all and how soon you can qualify.
The Student Loan Interest Deduction Still Applies
Refinancing doesn’t eliminate your student loan interest deduction. You can deduct up to $2,500 per year in interest paid on qualified education loans, and a refinanced loan qualifies as long as it was used to pay off original student debt. It’s an above-the-line adjustment, so you don’t have to itemize.
Income limits apply. For single filers, the deduction phases out between $75,000 and $90,000 of modified adjusted gross income. For married couples filing jointly, the phase-out runs from $155,000 to $185,000. If you file married filing separately, you’re not eligible. You also can’t claim it if someone else claims you as a dependent.
Claim the Autopay Discount
Nearly every private refinancing lender offers a 0.25% rate reduction for enrolling in automatic payments. It’s a small discount, but on a large balance over a long term it adds up, and there’s no reason to skip it. The discount typically pauses if you enter forbearance or suspend autopay, resuming only once you re-enroll. Since nearly every lender you’re comparing offers the same cut, build the autopay discount into your rate comparison from the start rather than treating it as a bonus.