The Impact of a Cosigner on Your Credit Score

Quick answer

• A cosigner can significantly help you qualify for loans or credit cards if your own credit history is limited or poor.
• The cosigner’s credit history and payment behavior are reported to credit bureaus, impacting both their score and yours.
• Responsible use of the credit line by you can improve your score, while missed payments will harm both scores.
• The cosigner remains fully liable for the debt if you fail to make payments.
• Understand that the debt will appear on the cosigner’s credit report, potentially affecting their ability to get new credit.

What to check first (before you act)

Your Credit Report Accuracy

Before seeking a cosigner or taking on new credit, it’s crucial to review your credit reports from Equifax, Experian, and TransUnion. Look for any errors, such as accounts you don’t recognize, incorrect balances, or late payments that were actually on time. Inaccurate information can unfairly lower your score and hinder your ability to secure credit.

Utilization and Balances

High credit utilization – the amount of credit you’re using compared to your total available credit – can negatively impact your score. If your balances are already high on existing credit cards, adding a new account, even with a cosigner, might not be the most effective strategy. It’s better to address existing debt first.

Payment History

Your payment history is the single most significant factor in your credit score. If you have a history of late payments or defaults, this will be a major red flag for lenders, even with a cosigner. A cosigner can help you get approved, but consistent, on-time payments are essential for building your own credit.

Recent Inquiries

Every time you apply for credit, it typically results in a hard inquiry on your credit report. Too many recent inquiries in a short period can signal to lenders that you might be a higher risk. Discuss with your potential cosigner the timing of applications to minimize this impact.

Time Horizon

Consider how long you plan to rely on the cosigner. Is this a temporary solution to build credit, or do you anticipate needing their support long-term? Understanding your goals will help you and your cosigner set expectations and develop a plan for you to eventually become independent.

Step-by-step (credit improvement workflow)

1. Obtain Your Credit Reports

• What to do: Get free copies of your credit reports from each of the three major credit bureaus (Equifax, Experian, TransUnion) annually at AnnualCreditReport.com.
• What “good” looks like: Your reports are accurate, with no errors, outdated information, or fraudulent accounts.
• Common mistake: Not checking all three reports, as they can differ. Avoid this by visiting the official website.

2. Review Reports for Errors

• What to do: Carefully examine each report for any inaccuracies, such as incorrect personal information, accounts you don’t recognize, or incorrect payment statuses.
• What “good” looks like: All information on your reports is accurate and up-to-date.
• Common mistake: Overlooking minor errors that could still impact your score. Avoid this by taking your time and cross-referencing information.

3. Dispute Inaccuracies

• What to do: If you find errors, file a dispute with the credit bureau reporting the error. You can usually do this online, by mail, or by phone.
• What “good” looks like: The credit bureau investigates and removes or corrects the inaccurate information.
• Common mistake: Not providing sufficient documentation. Avoid this by gathering all supporting evidence before disputing.

4. Assess Your Current Debt Load

• What to do: List all your current debts, including credit cards, loans, and any other outstanding balances. Calculate your total debt and your credit utilization ratios.
• What “good” looks like: Your credit utilization is low (ideally below 30% on each card and overall), and you have a manageable debt-to-income ratio.
• Common mistake: Underestimating the impact of high balances. Avoid this by understanding that high utilization significantly lowers your score.

5. Discuss Needs with a Potential Cosigner

• What to do: Talk openly with a trusted friend or family member about why you need a cosigner and what their role and responsibilities would be.
• What “good” looks like: Both you and the potential cosigner understand the risks and responsibilities involved, and they are willing and able to help.
• Common mistake: Approaching someone without a clear explanation or without considering their financial situation. Avoid this by being transparent and respectful.

6. Choose the Right Credit Product

• What to do: Select a credit card or loan that aligns with your goals and that you can manage responsibly. A secured credit card or a credit-builder loan might also be options.
• What “good” looks like: You’ve chosen a product that offers a reasonable credit limit and terms, and you understand all the fees and interest rates.
• Common mistake: Applying for too many different products at once. Avoid this by researching and choosing just one or two to apply for.

7. Apply for Credit with the Cosigner

• What to do: Complete the application for the chosen credit product, including the cosigner’s information as required.
• What “good” looks like: The application is approved based on your needs and the cosigner’s creditworthiness.
• Common mistake: Not fully understanding the application process or what information is required from the cosigner. Avoid this by reading all instructions carefully.

8. Make All Payments On Time, Every Time

• What to do: Set up automatic payments or reminders to ensure every bill is paid by the due date.
• What “good” looks like: A perfect payment history on the new account, demonstrating responsibility.
• Common mistake: Missing even a single payment. Avoid this by prioritizing these payments and setting up multiple reminders.

9. Monitor Your Credit and the Account

• What to do: Regularly check your credit reports and the credit card or loan statements to track your progress and ensure everything is as expected.
• What “good” looks like: Your credit score is gradually improving, and the account is being managed well.
• Common mistake: Assuming everything is fine without checking. Avoid this by making monitoring a regular habit.

10. Gradually Reduce Reliance on the Cosigner

• What to do: As your credit score improves and you establish a positive payment history, aim to pay down balances and eventually apply for credit in your own name.
• What “good” looks like: You are able to qualify for credit without a cosigner, and your cosigner can be released from the account if possible.
• Common mistake: Becoming complacent and not working towards financial independence. Avoid this by setting clear goals for removing the cosigner.

What affects your score (plain language)

• Payment History: This is the most critical factor. Paying bills on time, every time, is essential. Late payments, even by a few days, can significantly lower your score.
• Credit Utilization Ratio: This is the amount of credit you’re using compared to your total available credit. Keeping this ratio low (ideally below 30%) is beneficial.
• Length of Credit History: The longer you’ve had credit accounts in good standing, the better. A longer history demonstrates a track record of responsible credit management.
• Credit Mix: Having a variety of credit types (e.g., credit cards, installment loans like mortgages or auto loans) can be positive, showing you can manage different kinds of debt.
• New Credit: Opening too many new credit accounts in a short period can be a red flag for lenders, as it may indicate financial distress.
• Hard Inquiries: When you apply for new credit, lenders check your credit report, resulting in an inquiry. Too many inquiries can temporarily lower your score.
• Cosigner’s Behavior: If you have a cosigner, their payment behavior on the shared account directly impacts both your credit scores.

What NOT to do while improving credit:

Avoid closing old, unused credit accounts, as this can reduce your overall available credit and potentially increase your utilization ratio. Also, resist the urge to apply for multiple credit cards or loans simultaneously, as this can lead to numerous hard inquiries and signal desperation to lenders. It’s also important not to miss any payments, even small ones, as this is the most damaging factor to your credit score.

Common mistakes (and what happens if you ignore them)

Mistake	What it causes	Fix
Not checking credit reports for errors	Lower credit score, difficulty getting approved for loans/credit.	Obtain free reports annually and dispute any inaccuracies immediately.
High credit utilization	Significantly lower credit score, perceived as high risk by lenders.	Pay down balances on credit cards, especially those with high utilization, before applying for new credit.
Missing payments	Severe drop in credit score, potential for account default and collections.	Set up automatic payments or calendar reminders for all due dates.
Applying for too much credit at once	Multiple hard inquiries, temporary score drop, appearance of desperation.	Research thoroughly and apply for only one or two credit products at a time.
Closing old, unused credit accounts	Reduced available credit, increased utilization ratio, potentially lower score.	Keep old accounts open, especially if they have no annual fee, to maintain a longer credit history and lower utilization.
Not understanding the cosigner’s liability	Financial strain on the cosigner, damaged relationships, legal issues.	Ensure the cosigner fully understands they are responsible for the debt if you default.
Relying solely on the cosigner long-term	Stunted personal credit growth, continued dependence.	Develop a plan to pay down debt and build your own credit history to eventually qualify for credit independently.
Ignoring the impact on the cosigner’s score	The cosigner’s ability to get new credit may be hindered.	Communicate regularly with your cosigner and ensure responsible management of the account to protect their credit.
Not having a plan to remove the cosigner	The cosigner remains on the account indefinitely, impacting their finances.	Set clear goals and timelines for when you can apply to have the cosigner removed or to refinance the debt in your own name.
Not communicating with the cosigner	Misunderstandings, missed payments, and strained relationships.	Maintain open and honest communication about your financial situation and payment progress.

Decision rules (simple if/then)

• If your credit score is below 600, then consider getting a cosigner for a loan or credit card because many lenders will not approve applications with such scores.
• If you have a history of late payments, then a cosigner can help you get approved, but you must make on-time payments going forward because missed payments will hurt both your and the cosigner’s scores.
• If you are applying for a mortgage with a cosigner, then ensure the cosigner has a strong credit history and stable income because lenders will scrutinize both your and the cosigner’s financial profiles.
• If your credit utilization is above 50% on existing cards, then focus on paying down those balances before seeking a cosigner for new credit because high utilization is a major negative factor.
• If you have a cosigner on a credit card, then you should aim to pay the balance down significantly or in full each month because this demonstrates responsible management and helps build your credit faster.
• If your cosigner has a high credit utilization ratio themselves, then their ability to cosign may be limited, or the application might be denied because lenders consider the overall credit health of both parties.
• If you miss a payment on a joint account with a cosigner, then the cosigner’s credit score will be negatively impacted because their name is on the loan or credit line.
• If the goal is to build your own credit independently, then aim to be removed as an authorized user or to refinance the loan in your name as soon as possible because this severs the direct link to the cosigner’s credit.
• If you are considering a cosigner, then discuss the exit strategy early on, such as a timeline for refinancing or for them to be removed from the account, because this prevents long-term dependence.
• If you have a cosigner on a car loan, then ensure you can afford the monthly payments yourself before signing because the car could be repossessed if payments are missed.
• If your cosigner is a spouse, then their credit is often considered alongside yours for joint applications, but it’s still important to understand individual impacts.
• If you are unsure about the impact of a cosigner on your credit, then consult with a credit counselor or financial advisor because they can provide personalized guidance.

FAQ

How long does a cosigner stay on my credit report?

A cosigner remains on a credit account until they are officially released by the lender, which often requires refinancing the debt in your name alone or the lender approving your creditworthiness independently.

Will a cosigner’s good credit boost my score immediately?

A cosigner’s good credit helps you get approved, but your score will improve based on your own responsible payment behavior on the account over time.

What happens if I miss a payment with a cosigner?

If you miss a payment, it will negatively impact both your credit score and your cosigner’s credit score, and the cosigner is fully responsible for making the payment.

Can I get a cosigner removed from my credit account?

Yes, typically you can request to have a cosigner removed once you have established a positive payment history and can qualify for the loan or credit card on your own, or by refinancing.

Does having a cosigner affect my cosigner’s ability to get credit?

Yes, the debt appears on the cosigner’s credit report and counts towards their credit utilization and debt-to-income ratio, potentially making it harder for them to get new credit.

Is it better to have a cosigner or a secured credit card to build credit?

Both can be effective. A secured card requires a deposit but is solely in your name. A cosigner can help you access unsecured credit but involves another person’s financial risk.

What if the cosigner’s credit is not excellent?

If the cosigner’s credit is only fair, it may still help you get approved for some products, but the terms might be less favorable, or the lender might require a larger down payment.

What this page does NOT cover (and where to go next)

• Specific details about how to dispute credit report errors (refer to the CFPB or credit bureaus).
• Legal advice regarding cosigner agreements (consult a legal professional).
• Investment strategies for improving your financial future (explore investment guides).
• Detailed information on specific loan products or credit card offers (check with individual financial institutions).
• Tax implications of any financial transactions (consult a tax advisor).