Refinancing replaces your current loan with a new one, usually at a different interest rate and term — but it only saves you money if your credit score has improved or interest rates have dropped since you borrowed
Refinancing is a straightforward transaction: you take out a new loan to pay off the old one, and you start making payments on the new loan instead. The new lender pays your old lender in full, and you're done with that loan. The appeal is simple — a lower interest rate means lower monthly payments or a shorter payoff timeline. But refinancing also has real costs and trade-offs that don't always make sense.
The decision hinges on three things: whether you'll actually save money over the life of the loan, whether you can afford the new payment, and whether you're willing to give up federal loan protections that come with government-backed student loans.
Key Takeaways
- Refinancing only saves money if your new interest rate is lower than your current rate, which usually requires a credit score improvement or a drop in market rates since you borrowed.
- Federal student loans include income-driven repayment plans, loan forgiveness programs, and deferment options that private refinanced loans do not offer.
- Refinancing resets your loan term, so a 10-year loan becomes a new 10-year loan — you don't automatically shorten the payoff timeline unless you choose a shorter term.
- The refinancing process typically takes two to four weeks and involves a hard credit inquiry, which temporarily lowers your credit score by a few points.
- If you have federal loans with a low interest rate or you're pursuing Public Service Loan Forgiveness, refinancing usually costs you more than it saves.
When your credit score and interest rates matter most
Your interest rate on a refinanced loan depends almost entirely on your credit score and the current market rate for student loans. If your credit score has risen significantly since you took out your original loan — say, from 650 to 750 — lenders will offer you a better rate. If market rates have fallen, that also works in your favor. But if neither has changed much, refinancing won't save you money and will cost you the application fees and the hard credit inquiry.
Run the actual numbers before you apply. Most refinancing lenders offer a rate estimate tool that shows you what rate you'd receive without a hard inquiry. Compare that rate to your current rate, then use a loan calculator to see how much you'd save over the full term. If the savings are less than a few hundred dollars, the benefit is probably too small to justify losing federal protections.
What you lose when you refinance federal loans
Federal student loans come with protections that private loans do not. Income-driven repayment plans cap your monthly payment at a percentage of your discretionary income — sometimes as low as 10 percent. If you lose your job or your income drops, you can request deferment or forbearance, which pauses your payments temporarily. Federal loans also may have access to for Public Service Loan Forgiveness if you work in government or nonprofit jobs for 10 years while making may have access to payments.
When you refinance with a private lender, you lose all of these options. Your new loan will have a fixed payment based on the term you choose, and if you can't pay, your only options are to request a hardship deferment (which not all lenders offer) or to default. There is no forgiveness program for private loans. If you're pursuing Public Service Loan Forgiveness or you think you might need income-driven repayment in the next five to ten years, refinancing is almost always the wrong move.
How refinancing changes your loan term and payment
A common misunderstanding: refinancing does not automatically shorten your loan. If you have 15 years left on a 20-year loan and you refinance, you're starting a new loan term from scratch. You can choose a 5-year, 10-year, or 15-year term — but the lender won't know how much time you had left on the old loan unless you tell them.
This matters because a shorter term means a higher monthly payment, even if your interest rate is lower. A 10-year refinance will have a higher monthly payment than a 20-year refinance at the same rate. Before you apply, decide what term you can actually afford. A payment you can't make defeats the purpose of refinancing.
The application process and what it costs
Refinancing involves a hard credit inquiry, which temporarily lowers your credit score by a few points — usually between 5 and 10 points. Most lenders do not charge an application fee, but some do, and some charge origination fees that are deducted from your loan amount. Read the fine print before you submit an application.
The process typically takes two to four weeks from application to funding. During that time, you'll need to provide proof of income (usually recent pay stubs or tax returns), employment verification, and details about your current loans. Once the new lender funds the loan, they pay off your old loan directly, and you stop making payments to your old servicer.
Situations where refinancing usually makes sense
Refinancing works best when you have private student loans, a good credit score, and no plans to use federal protections. If you borrowed through private lenders (not federal loans), you have no income-driven repayment options or forgiveness programs to lose. A lower interest rate is a straightforward win.
It also makes sense if you have federal loans but you're confident you'll stay employed, your income is stable, and you don't may have access to for Public Service Loan Forgiveness. If you're in your 40s and will have paid off your loans before retirement, the risk of needing income-driven repayment is lower. If your current interest rate is 7 percent or higher and you can get a rate below 5 percent, the savings over 10 years can be substantial.
Situations where refinancing usually costs you money
Don't refinance if your current interest rate is already low — below 4 percent. The savings won't justify the loss of federal protections. Don't refinance if you're pursuing Public Service Loan Forgiveness; the forgiveness program only works with federal loans, and refinancing disqualifies you permanently.
Avoid refinancing if your income is unstable, you work in a field with frequent layoffs, or you have dependents and limited emergency savings. If you lose your job, federal loans offer deferment and income-driven repayment. Private loans do not. The peace of mind of federal protections is worth more than a small interest rate reduction if you can't afford to miss a payment.
Frequently Asked Questions
Can I refinance my federal loans and keep them federal?
No. Refinancing means taking out a new loan from a private lender to pay off your federal loans. Once you do, your old federal loans are gone and your new loan is private. You cannot undo this — if you refinance and later regret it, you cannot get your federal protections back.
What if I refinance and my interest rate goes up?
If you receive a rate quote and it's higher than your current rate, you can decline the offer before the hard inquiry is submitted. Most lenders let you see your rate estimate without affecting your credit score. Only proceed if the new rate is lower than what you currently pay.
Do I have to refinance all my loans at once?
No. You can refinance some loans and leave others alone. Many people refinance private loans while keeping federal loans untouched. You can also refinance only your highest-rate loans and leave lower-rate loans as they are. Each refinance is a separate transaction.
How long does it take to see savings from refinancing?
You see savings immediately in your monthly payment if you choose the same term at a lower rate. Over the full loan term, the total savings depend on how much lower your new rate is. A 1 percent rate reduction on a $50,000 loan over 10 years saves roughly $5,000 in interest, but the exact amount varies by lender and your specific loan details.
What happens to my old loan after refinancing?
Your old loan is paid off in full by the new lender. You stop making payments to your old servicer and start making payments to your new lender. Your old loan account closes. You should confirm the payoff in writing from your old servicer before you make your first payment to the new lender.