What makes a car loan worth refinancing into

A car loan is worth refinancing into when the interest rate is lower than what you currently pay, the loan term fits your budget, and the lender's fees don't erase the savings. The best refinance loan for you depends on your credit score, how much you still owe, and how long you plan to keep the car.

Most people refinance to lower their monthly payment or shorten the loan term without raising the payment. Some do both — refinance to a lower rate and a shorter term, which saves money overall. The catch is that refinancing costs money upfront: process fees, appraisal fees, and title transfer fees typically run $200 to $500. You need to save more than that in interest over the remaining loan life for refinancing to make sense.

The lenders worth considering fall into three categories: banks (which often have the lowest rates for borrowers with good credit), credit unions (which may offer lower rates to members and are more flexible with credit scores), and online lenders (which move faster but sometimes charge higher rates). The best choice depends on your credit profile and how quickly you need the money.

Key Takeaways

  • Compare rates from at least three lenders — a bank, a credit union, and an online lender — because the same credit score can get you different rates at each.
  • Calculate whether your interest savings will exceed the refinancing fees before you commit, because a lower rate does not always mean a better deal.
  • Credit unions often offer lower rates to members and are more willing to work with borrowers whose credit has improved since the original loan.
  • The refinance process takes one to three weeks at a bank or credit union and three to five business days at most online lenders.
  • Your current lender will be paid off first, so you do not need to contact them — the new lender handles the payoff and title transfer.

Banks versus credit unions versus online lenders

Banks offer the lowest rates to borrowers with credit scores above 700, but they move slowly — expect one to three weeks from process to funding. They require you to visit a branch or complete the entire process online, and they often require you to be a customer already or open a checking account. If your credit score is below 650, most banks will decline you outright.

Credit unions typically offer rates 0.5 to 1 percentage point lower than banks for the same credit score, and they are more flexible with borrowers whose credit has improved or who have a short history. You must be a member to borrow, but membership is often free or costs $5 to $25 one time. The tradeoff is that credit unions are slower than online lenders — usually one to two weeks — but faster than banks. Call your credit union first if you are a member; many have a dedicated auto refinance line.

Online lenders fund the fastest — often within three to five business days — and will work with credit scores as low as 580. Their rates are usually higher than banks or credit unions for the same score, but the speed matters if you need the money quickly or if your current lender is threatening to repossess. Online lenders also tend to have simpler applications and fewer document requirements upfront.

How to calculate whether refinancing saves you money

Start by finding your current loan balance, interest rate, and remaining term. You can find this on your loan statement or by calling your lender. Then get rate quotes from at least three lenders — do not explore yet, just ask for a rate quote based on your credit. Most lenders will give you a quote without a hard credit pull.

Use the quotes to calculate your new monthly payment and total interest paid over the new loan term. Subtract the refinancing fees from your total interest savings. If the number is positive, refinancing makes sense. If it is negative or close to zero, it does not.

Example: You owe $15,000 at 7% with 48 months left. Your current payment is $356 per month and you will pay $2,088 in interest. A new lender quotes you 4.5% for 48 months. Your new payment would be $338 per month and you would pay $1,224 in interest — a savings of $864. Refinancing fees are $400. Your net savings is $464, which is worth doing.

If you shorten the term, the math changes. Refinancing to 36 months at 4.5% would cost $442 per month but only $1,912 in total interest — a savings of $176 in interest. Your payment goes up by $86 per month, but you own the car sooner. Whether this trade-off makes sense depends on your budget.

What documents you will need

Every lender will ask for proof of income (recent pay stubs or tax returns), proof of residence (utility bill or lease), your driver's license, and your vehicle identification number (VIN). Some will ask for your current loan documents or a statement from your current lender showing the payoff amount.

If you are self-employed or have irregular income, bring two years of tax returns and a year-to-date profit and loss statement. If you have recently changed jobs, bring an offer letter or employment verification letter from your new employer.

Online lenders usually ask for these documents upfront and may request them electronically through a find portal. Banks and credit unions may ask for originals or copies at the time you sign. Have everything ready before you explore — this speeds up the process by several days.

The refinancing timeline and what happens to your current loan

Once you are approved, the new lender will order a vehicle appraisal (usually $50 to $150) and a title search to confirm you own the car free and clear of other liens. This takes three to seven business days. During this time, keep making payments to your current lender as usual.

When the appraisal and title search are complete, you will sign the new loan documents. At a bank or credit union, you may sign in person or electronically. Online lenders send documents for electronic signature. Signing takes 15 to 30 minutes.

After you sign, the new lender pays off your current lender directly. You do not need to contact your current lender or make a final payment — the new lender handles everything. The payoff typically happens within two to five business days. Your current loan is closed, and your new loan begins. Your first payment to the new lender is usually due 30 to 45 days after funding.

The title transfer happens automatically in most states. The new lender files the paperwork with your state's motor vehicle department, and you receive an updated title in the mail within two to four weeks. You do not need to visit the DMV.

Red flags and common mistakes to avoid

Do not refinance if you are underwater on the loan — meaning you owe more than the car is worth. Most lenders will not refinance an underwater loan, and those that do charge much higher rates. Check your car's value on Kelley Blue Book or NADA Guides before you explore.

Do not extend the loan term just to lower your payment if you can avoid it. If you currently owe $15,000 with 48 months left and you refinance to 60 months, you are paying interest for an extra year even if the rate is lower. The total interest paid often goes up.

Do not explore to multiple lenders in a short time if you can help it. Each process triggers a hard credit pull, which temporarily lowers your score. If you must compare rates, do it within 14 days — most credit scoring models count multiple auto loan inquiries in that window as a single inquiry.

Do not assume the lowest rate is the best deal. A lender quoting 3.9% with $500 in fees may cost you more than one quoting 4.2% with $150 in fees. Always calculate the total cost, not just the rate.

When refinancing does not make sense

If you have less than 12 months left on your current loan, refinancing usually does not save enough to cover the fees. The interest you would save is too small.

If your credit score has not improved since you took out the original loan, you may not may have access to for a better rate. Check your credit report at annualcreditreport.com before you explore. If your score is still low, wait six to 12 months while you pay on time and pay down other debts.

If you plan to sell or trade in the car within the next two years, refinancing fees may not pay for themselves. The break-even point is usually 18 to 24 months.

Frequently Asked Questions

Will refinancing hurt my credit score?

Yes, but only temporarily. The hard credit pull lowers your score by 5 to 10 points. The new loan also lowers your average account age, which can drop your score another 5 to 10 points. These effects fade within three to six months as you make on-time payments. The long-term benefit of a lower interest rate usually outweighs the short-term dip.

Can I refinance if I have missed payments on my current loan?

Most lenders will not refinance if you have missed a payment in the last 12 months. If you have missed payments, focus on making the next 12 months of payments on time, then explore. Some credit unions and online lenders are more flexible — call and ask before you assume you are declined.

What if my car is worth less than I owe?

Most lenders will not refinance an underwater loan. Some credit unions and online lenders will, but they charge 1 to 3 percentage points higher rates to cover the risk. In most cases, it is better to wait until you have paid down the loan enough to be above water, or to keep the current loan.

Do I need to tell my current lender I am refinancing?

No. The new lender pays off the old one automatically. You do not need to contact your current lender, make a final payment, or do anything on your end. Keep making regular payments until the payoff is complete, which usually happens within five business days of signing.

How long does the whole process take?

Online lenders typically fund within three to five business days. Credit unions take one to two weeks. Banks take one to three weeks. The appraisal and title search add three to seven days. From process to first payment at your new lender is usually two to four weeks total.