You usually cannot switch cosigners on a car loan the way you’d update a name on a utility account. A car loan is a contract tied to the specific people the lender approved, so most lenders won’t substitute one cosigner for another on the existing agreement. The standard route is refinancing: a new loan, with the new cosigner (or no cosigner), that pays off the old one. A separate option called cosigner release lets you remove the current cosigner without replacing them, but only some lenders offer it and it won’t add anyone new.
Why Lenders Don’t Allow a Straight Swap
Your current loan was underwritten based on the combined credit and income of the people who signed it. Dropping one of those people and inserting a different one changes the risk the lender agreed to carry, so lenders treat the change as a new application rather than a paperwork update. When you call and ask to switch cosigners, expect to be pointed toward refinancing. A handful of lenders may consider a modification, but it’s uncommon enough that you shouldn’t plan around it.
Refinancing With a New Cosigner
Refinancing is the clean way to put a different person on the hook with you. The new loan pays off the existing balance, the old contract ends, and the fresh application can name whoever you want: you alone, you with a new cosigner, or you with a co-borrower. Because it’s a brand-new underwriting decision, the lender looks at everyone’s current credit scores, income, and debt rather than the picture from the day you bought the car.
You can refinance with your current lender or shop other lenders, and shopping is usually worth the effort if your credit has improved or rates have moved. The quoted rate matters, but so does the term. A longer loan with a smaller monthly payment can cost significantly more in total interest even at a better rate, so compare total cost rather than monthly payment before you sign anything.
Fees to Expect
Auto refinancing tends to come with modest upfront costs rather than mortgage-style closing fees, but it isn’t free. Some lenders charge an application or origination fee. Your state will charge to update the vehicle title with the new lienholder, and registration fees vary by state. Title and registration changes alone can run from around $20 to several hundred dollars depending on where you live.
If You’re Underwater on the Loan
Refinancing gets harder when you owe more than the car is worth. Lenders don’t want to issue a new loan that exceeds the vehicle’s current value, because the collateral wouldn’t cover the balance. If you’re in that position, you have a few choices: make extra payments to close the gap before applying, bring cash to the closing to cover the difference, or wait for depreciation and regular payments to bring the balance in line with the car’s value. Some lenders will roll negative equity into a new loan, but doing so puts you deeper in the hole.
Cosigner Release: Removing Without Replacing
If your goal is really just to get the current cosigner off the loan, and you can carry it alone, ask whether your lender offers a cosigner release. Some auto loan agreements include this provision. The original loan stays intact, which preserves your current interest rate and remaining term, and the cosigner’s obligation to the lender ends.
Lenders that offer release typically want a track record of on-time payments, often 24 to 36 consecutive months, before they’ll consider the request. You’ll also go through a fresh credit check to show you can carry the debt on your own. Expect the lender to look for a credit score in at least the mid-to-high 600s and a debt-to-income ratio that leaves comfortable room for the payment, though exact thresholds vary.
Release only works in one direction. It removes a cosigner; it doesn’t substitute a new one. If you want a different cosigner specifically, you’re back to refinancing. And if you’re currently signing a loan that may need a cosigner change later, ask about release provisions before you sign. Getting it written into the original agreement is easier than negotiating it after the fact.
Cosigner or Co-Borrower? Check Before You Start
Figure out which arrangement you actually have, because it changes what the removal involves. A cosigner backs the loan financially but typically isn’t on the car’s title. They owe the lender if you default, and the loan appears on their credit report, but they have no ownership of the vehicle.
A co-borrower shares equal responsibility for the loan and equal rights to the car, with their name usually on the title alongside yours. Removing a co-borrower involves not just the loan change but a title transfer at your state’s DMV, which adds a step and a fee a simple cosigner removal doesn’t require. If you’re not sure which you have, check your loan documents and the vehicle title.
What to Gather Before You Apply
Whether you’re refinancing or applying for a release, the paperwork is similar. Have the following ready:
- Current loan details: account number, remaining balance, and payoff amount, which may be slightly higher than the balance because of accrued interest.
- Proof of income: recent pay stubs, W-2s, or two to three years of tax returns if you’re self-employed.
- Identification: government-issued ID and Social Security number for every person who will be on the new loan.
- Debt information: accurate monthly figures for rent or mortgage, credit card minimums, student loans, and other recurring debt, which the lender uses to calculate your debt-to-income ratio.
Report the numbers accurately. Underreporting debts won’t slip past underwriting; it just stalls the process when the lender’s own records don’t match your application. Pull your credit report before you apply so you know what the lender will see.
Review and Approval Timeline
After you submit the application, the lender reviews the financials and runs hard credit inquiries on everyone involved. Federal regulations give creditors 30 days after receiving a completed application to notify you of the decision.1Consumer Financial Protection Bureau. 12 CFR Part 1002 (Regulation B) – 1002.9 Notifications
If you’re approved, you’ll receive either a new loan agreement (refinancing) or a modification addendum (release) to sign. Read the terms before signing. On a refinance, confirm the rate, term, and total cost match what was quoted. On a release, confirm the cosigner’s name is actually being removed and that nothing else changed.
If you’re denied, the lender must send a written adverse action notice explaining the specific reasons, including the credit bureau whose report influenced the decision.1Consumer Financial Protection Bureau. 12 CFR Part 1002 (Regulation B) – 1002.9 Notifications That notice tells you exactly what to fix before trying again.
How the Change Affects Credit
The hard credit inquiry from a refinance application typically costs fewer than five points on a FICO score, and the impact fades within about a year. If you’re comparing lenders, cluster the applications; scoring models treat multiple auto loan inquiries within a 14-to-45-day window as a single inquiry.
A new loan also resets your account age. Closing a loan you’ve been paying on for years and opening a fresh account lowers your average account age, which can nudge your score down temporarily.
For the cosigner you’re removing, the effect is mixed. If the loan was dragging their score down through high utilization or late payments, removal should help. If the loan carried a long positive payment history, losing it could cause a small dip. Either way, their debt-to-income ratio improves immediately, which makes it easier for them to qualify for new credit of their own.
Check for a Prepayment Penalty First
Before you refinance, look at your current loan for a prepayment penalty. They’re uncommon on auto loans but not extinct, and the penalty, where it exists, is typically around 2% of the outstanding balance. Federal law prohibits prepayment penalties on auto loans with terms longer than 60 months, and some states ban them entirely. Check your original loan agreement or call your lender before you start, because a surprise penalty can erase the savings from a better rate.
Insurance and Title After the Change
Once the loan change is final, a couple of items remain. If you refinanced, your new lender is the lienholder, so notify your auto insurer and get the new lienholder listed on your policy. Skipping this can lead the lender to place its own insurance on the vehicle at a much higher cost to you.
A cosigner generally doesn’t need to be on the insurance policy unless they’re on the title or regularly drive the car, so removing a cosigner who was only on the loan usually requires no insurance change at all. If a co-borrower is being removed and their name is on the title, you’ll also need a title transfer through your state’s DMV, which carries a fee and a processing time that ranges from a few days (electronic) to several weeks (mail). Keep copies of the signed release documents until the updated title arrives.
If You’re Denied
A denial isn’t the end of the road, and the adverse action notice is a roadmap. The common reasons are a credit score that’s too low, a debt-to-income ratio that’s too high, or income that doesn’t support the loan without a cosigner. Each is fixable with time. Pay down revolving balances and keep payments current for six months before reapplying. Pay off a smaller debt entirely rather than chipping at several, which shifts the DTI ratio faster. If the lender wants more income on the application, you may need a different cosigner for now, even if going solo is the eventual goal.
While you work on reapplying, the existing loan continues under its original terms. The current cosigner stays responsible, and the payment schedule and rate don’t change. A cosigner can’t walk away because a refinance attempt failed. That obligation ends only when the loan is paid off, refinanced into a new agreement, or formally released by the lender.