A co-buyer (or co-borrower) shares ownership and equity in an asset (like a car or house) and is on the title/deed, while a co-signer only agrees to be financially responsible for the loan if the primary borrower defaults, without gaining any ownership rights to the asset itself. Both help with loan approval but differ in ownership, equity, and control over the property; co-buyers are effectively buying with someone, whereas co-signers are guaranteeing the loan for someone else.
What is a co-signer? A co-signer also is someone who signs a loan or lease agreement alongside the primary borrower, but this person doesn't have any ownership rights to the vehicle, whereas a co-buyer is a joint owner of the vehicle.
The Bottom Line. Co-borrowing is a good option if you want to own an asset and share payment responsibility with someone. On the other hand, cosigning is solely about helping someone qualify for a loan—you won't have ownership rights.
The cosigner has no legal ownership of the car, but they are responsible for payments if the primary borrower fails to pay.
This arrangement can make homeownership more affordable in some cases, but it also means you have a shared a liability for the debt. Before moving forward, keep in mind that co-buying can put a strain on your relationship, and your credit score, if either party fails to hold up their end of the agreement.
If the cosigner has better credit, cosigning the loan might also help lower the interest rate. Common examples of loans that may include a cosigner include car loans, mortgages, student loans, or apartment leases.
The 3-7-3 Rule in mortgages isn't a loan type but a federal timeline from the TILA-RESPA Integrated Disclosure (TRID) rule, ensuring borrower protection by mandating disclosures within 3 business days of application, a 7-business-day wait between the initial Loan Estimate and closing, and another 3-day wait if significant changes (like APR) occur, giving borrowers time to review costs before committing to a loan.
Generally, both borrowers are listed on the car title, which might be something you want to avoid if you've split with your ex for good. If the other person is also listed on the title, they can take the car away from you and there may be little you can do about it.
If I Have a Co-Signer, Will I Still Build Credit? Yes—you definitely will! Co-signers are only there to show lenders that you have a safety net if you're unable to pay back the loan. You are still the one making the car payments, which means you will be the one building credit.
Cosigning a loan doesn't give you any title, ownership, or other rights to the property the loan is paying for. Your only role is to repay the loan if the main borrower falls behind on the payments or defaults.
FAQs for borrowers
Yes, you can typically have a co-signer to help qualify for a mortgage, but it also depends on the mortgage product. How long does a co-signer stay on a mortgage? A co-signer stays on the mortgage until it is paid off, refinanced or removed through a loan modification.
Quick Answer
You can remove a cosigner from a car loan to release their financial responsibility and take over the loan yourself as long as you meet the lender's requirements. However, your options are limited and typically require you to have a good credit score, stable income and positive payment history.
The cosigner is not responsible for insurance
If you don't plan to drive the vehicle that you are cosigning for, you're not required to be on the insurance policy for the new vehicle. Additionally, there should be no changes to your car insurance.
The best times to buy a car are the end of the year (especially December) for big discounts on outgoing models and hitting quotas, fall (Sept-Nov) to clear old inventory as new models arrive, end of the month/quarter for sales staff to meet goals, and specific holidays like Black Friday; Tuesdays and Wednesdays are often better days due to fewer crowds, while late January offers good deals with less holiday shopping competition.
For most people, increasing a credit score by 100 points in a month isn't going to happen. But if you pay your bills on time, eliminate your consumer debt, don't run large balances on your cards and maintain a mix of both consumer and secured borrowing, an increase in your credit could happen within months.
Get consent
If it only contains the word “and,” both parties need to agree to remove any name from the title. Therefore, you'll need to get consent from the co owner. Ideally, permission should be in writing and include information about the removal and any agreements between the co owners.