Using a Co-Signer for Your Auto Loan: What You Need to Know

What Is a Co-Signer and When Do You Need One?

A co-signer is a person who adds their income and credit information to your loan application and pledges to repay the loan if you do not. Lenders consider their credit and income alongside yours, which can make it easier to get approved, especially if your own credit history is limited or has some blemishes.

You might need a co-signer if you have no credit history, a low credit score, or a high debt-to-income ratio. However, federal agencies such as the Consumer Financial Protection Bureau (CFPB) note that lenders cannot require a co-signer if you qualify on your own. So a co-signer should be a choice you make to improve your chances, not something a lender forces on you.

• A co-signer adds their credit and income to your loan application.
• They are legally responsible for repaying the loan if you cannot.
• Lenders cannot require a co-signer if you already qualify.
• A co-signer does not own the vehicle.

Sources: Consumer Financial Protection Bureau, Federal Deposit Insurance Corporation

How a Co-Signer Helps You Get a Loan and Save Money

When a person with good credit co-signs your auto loan, the lender sees a stronger application. This can increase your chances of approval, and it may also result in a lower interest rate. Because the co-signer’s credit history and income support the loan, the lender views the loan as less risky, which often translates into better terms for you.

The exact benefit depends on your co-signer’s credit profile and the lender’s policies. A co-signer with strong credit can be the difference between a denial and an approval, or between a high-interest loan and a more affordable one. Keep in mind that not all lenders treat co-signers the same way, so it pays to compare offers.

• Increased likelihood of approval
• Possibly lower interest rate

Sources: Consumer Financial Protection Bureau, Federal Deposit Insurance Corporation

Co-signer requirements

Not every person can be a co-signer. Lenders typically look for someone with a strong credit history and enough income to cover the loan payments if you cannot. While requirements vary by lender, a co-signer often needs a credit score above 700, a good debt-to-income ratio, and a steady income. They must also provide proof of identity and proof of income as part of the application process.

It’s important to discuss these requirements with your potential co-signer. Make sure they understand what they’re committing to, and check with the lender to see their exact criteria. A co-signer with weak credit may not improve your application; check with the lender to understand their standards.

• Strong credit score, often above 700
• Good debt-to-income ratio
• Steady income
• Proof of identity and income

Sources: Red River Credit Union, CarsDirect

What the co-signer agrees to

When someone co-signs your auto loan, they are legally responsible for repaying the loan if you cannot. That means if you miss payments, the lender can come after the co-signer for the full balance, plus any fees or collection costs. Late payments and defaults can also damage the co-signer’s credit score, just as they would yours.

What many co-signers don’t realize is that they have no ownership rights to the vehicle. Even though they’re responsible for the loan, they don’t get to drive the car or sell it. This can create tension if you and your co-signer have different expectations. The CFPB and FDIC both emphasize that co-signing is a serious financial commitment, not just a favor.

Before agreeing, a co-signer should carefully consider whether they can afford the payments if you default. They should also understand that being a co-signer can make it harder for them to get credit in the future, because the loan appears on their credit report and counts toward their debt.

• Co-signer is legally responsible for the debt if you default
• Missed payments and default hurt both credit scores
• Co-signer has no ownership rights to the vehicle
• Loan shows on co-signer’s credit report and can impact their borrowing ability

Sources: Consumer Financial Protection Bureau, Federal Deposit Insurance Corporation

Does a Co-Signer Help You Build Credit?

The loan may be reported to credit bureaus, but the specific reporting practices depend on the lender. Ask the lender whether and how the loan will be reported to the credit reporting agencies before agreeing to the loan.

On-time payments may be reflected in credit reports, which can positively affect your credit history. However, missed payments can damage both your credit and the co-signer’s. The loan appears on both credit reports, so the outcome depends on how responsibly the loan is managed.

• Loan may appear on both credit reports, depending on lender reporting
• On-time payments can positively affect credit history
• Late payments damage both your credit and the co-signer’s

Sources: Consumer Financial Protection Bureau

Removing a Co-Signer Later

Once you have built a good payment history and your credit improves, you might want to remove your co-signer from the loan. This is not automatic—you have to refinance the loan in your name alone, or ask the lender to release the co-signer. Lenders have different policies on this, and not all allow co-signer release.

Refinancing means taking out a new loan to pay off the old one, and it typically requires you to qualify on your own. If your credit is strong enough, you may be able to get a new loan with a similar or better interest rate, and your co-signer is then released from the original loan. However, there’s no guarantee, and the lender may charge fees for refinancing.

It’s always a good idea to discuss the exit strategy with your co-signer before you agree to the loan. That way, both of you know what to expect and how you might end the arrangement.

• Removal requires refinancing or lender release
• You usually need to qualify on your own
• Not all lenders allow co-signer release
• Talk to your co-signer about the exit plan early

Sources: Consumer Financial Protection Bureau

Alternatives to Using a Co-Signer

If you don’t have a co-signer, you still have options. One is to improve your credit score before applying for a loan. Moreover, you could save for a larger down payment, which reduces the amount you need to borrow and can make lenders more willing to work with you.

Another alternative is to choose a less expensive car, which lowers the loan amount and may make it easier to get approved. You could also look for lenders that specialize in first-time buyers or bad-credit auto loans—though these may come with higher interest rates. Federal agencies such as the CFPB and FDIC advise shopping around and comparing offers to find the best terms you qualify for.

It’s important to weigh the cost of financing against the benefit of getting a vehicle. Sometimes waiting a few months to build your credit can save you thousands of dollars in interest, making it worth postponing your purchase.

• Improve your credit score before applying
• Make a larger down payment
• Choose a less expensive vehicle
• Shop around for lenders that work with first-time buyers

Sources: Consumer Financial Protection Bureau

Talking to Your Co-Signer: Questions to Ask

Before anyone signs, have an open conversation with your potential co-signer. Make sure they fully understand the commitment and that you both agree on how the loan will be managed. It’s also wise to discuss what happens if you hit financial trouble.

Encourage your co-signer to ask questions too. They should know how they can check the loan status, what their liability is, and how to protect their credit. A clear agreement now can prevent misunderstandings later.

• What is the exact monthly payment and total cost?
• Who is responsible for making payments?
• What happens if you can’t pay?
• How will you both monitor the account?
• Is there a plan for removing the co-signer?

Sources: Consumer Financial Protection Bureau