Refinancing a car loan does hurt your credit score, but only a little and only for a short time. Most borrowers lose fewer than five points from the hard inquiry alone, with small additional effects from resetting the loan’s paydown progress and adding a new account. Scores typically return to their previous level within three to six months of on-time payments on the new loan.1myFICO. Does Checking Your Credit Score Lower It?
Where the Drop Comes From
Three things happen when you refinance, and each nudges your score down a bit.
The first is the hard inquiry. When a lender pulls your full credit report to make a lending decision, that pull is recorded on your file. A single hard inquiry typically drops a FICO score by fewer than five points, and the effect fades within a few months. Inquiries stay on your report for two years but only factor into your FICO score for the first twelve months.2American Express. How Many Hard Inquiries Are Too Many?
The second is the loan balance reset. “Amounts owed” makes up roughly 30% of a standard FICO score.3myFICO. What’s in Your Credit Score For an installment loan, the scoring model compares what you still owe with the original loan amount. If you borrowed $25,000 and paid it down to $15,000, you owe 60% of the original — and that progress helps your score.4myFICO. How Owing Money Can Impact Your Credit Score Refinancing replaces that paid-down loan with a new one where you owe close to 100% of the original amount, even though the dollar figure is roughly the same. The model sees a fresh loan with no paydown yet, and your score dips accordingly.
The third is the new account itself. Your old loan does not disappear the moment it’s paid off; both FICO and VantageScore continue to include closed accounts in age-related calculations, and a closed account in good standing stays on your report for up to ten years.5Experian. How Long Do Closed Accounts Stay on Your Credit Report? The pressure on your credit age comes instead from the new loan, which starts at zero months and drags down the average age of your accounts. The “new credit” category accounts for about 10% of your FICO score.3myFICO. What’s in Your Credit Score If you already have a long, diverse credit history, this effect is small; if you have only a handful of accounts, it’s more noticeable.
Apply to Multiple Lenders Without Multiplying the Damage
Shopping several lenders does not stack inquiry penalties. FICO scoring models group auto loan inquiries made within a short window into a single event, treating them as one rate-shopping effort rather than multiple new-debt requests. Older FICO versions use a 14-day window; newer versions extend it to 45 days. VantageScore uses a rolling two-week window.1myFICO. Does Checking Your Credit Score Lower It? Submitting every application within a two-week span keeps you covered under any of these models.
Many lenders also offer prequalification with a soft credit inquiry, which does not affect your score at all. Soft-pull prequalification gives you an estimated rate and loan amount before you commit to a full application, letting you narrow the field before any hard inquiry hits your report. Ask each lender whether their prequalification uses a soft or hard pull before applying.
How Long the Dip Lasts
The initial drop typically stabilizes within three to six months as the new loan builds a record of on-time payments. Hard inquiries stop affecting your FICO score after twelve months, though they remain visible on your report for two years.1myFICO. Does Checking Your Credit Score Lower It? The balance ratio improves with every payment, and the new account gains age with each reporting cycle.
One caution during the transition. Lenders usually report account updates to the three major bureaus every 30 days, so it may take one or two billing cycles for the old loan’s closure and the new loan’s opening to show accurately. Keep paying your original lender until you confirm the old balance has been paid off by the new lender. A missed payment during the handoff counts against your payment history the same as any other late payment, and payment history is the single largest FICO factor at 35%.3myFICO. What’s in Your Credit Score
When the Hit Is Bigger
Two situations push the credit impact past the usual few points.
Cash-Out Refinancing
A cash-out auto refinance lets you borrow more than your remaining balance and keep the difference, using your vehicle equity as collateral. A standard refinance keeps your debt roughly the same; a cash-out refinance raises it. That amplifies the balance-ratio reset because you now owe 100% of a noticeably larger loan, and FICO’s “amounts owed” calculation can penalize this more heavily than a plain rate-and-term refinance. The larger monthly payment also raises the risk of a missed payment, which would damage your credit far more than the refinance itself.
Refinancing With Negative Equity
If you owe more on your car than it’s worth — sometimes called being underwater — refinancing is riskier for both sides. Most lenders will not refinance a balance that exceeds the vehicle’s market value without conditions, and those that do generally charge higher rates. A Consumer Financial Protection Bureau study found that borrowers who financed negative equity into a new loan had an average loan-to-value ratio of 119.3%, compared with 89.1% for borrowers with positive equity, and were more than twice as likely to face repossession within two years.6Consumer Financial Protection Bureau. Negative Equity in Auto Lending Repossession is one of the most severe negative marks a credit report can carry. If you’re underwater, paying the balance down below the car’s value before refinancing puts you in a stronger position for both qualifying at a better rate and protecting your credit.
How to Keep the Impact Small
- Start with soft-pull prequalification, and reserve formal applications for your top choices.
- Submit every application within 14 days so all scoring models treat the inquiries as a single rate-shopping event.
- Avoid opening other new accounts around the same time. Each new account lowers your average credit age, and stacking them multiplies the effect.
- Set up autopay on the new loan. Payment history is 35% of your FICO score, and automation removes the risk of an accidental late payment during the transition.3myFICO. What’s in Your Credit Score
- Pull your credit report a month or two after refinancing to confirm the old loan shows as paid in full and the new loan reports the correct balance.
For most borrowers, the dip from refinancing lands somewhere in the range of five to ten points and recovers within a few months of steady payments. If the new loan lowers your rate or monthly payment enough to keep your budget comfortable, the short-term score movement is usually a reasonable price for the long-term savings.