Common mistakes parents make when cosigning—and how to avoid them

By Anna Baluch | Published on October 21, 2025

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Cosigning student loans 1 can be a meaningful way to help someone you care about pay for school. Whether you're a parent, grandparent, guardian, or friend, it's a decision that comes with real responsibility. Before you go ahead and sign on the dotted line, here are four common missteps to avoid—and how to set both you and the student up for success.

Mistake 1: Not understanding the full financial responsibility

Cosigning means you’re legally agreeing to take full responsibility for the loan if the student can’t pay—no matter the reason. It’s more than a signature; it’s a binding financial obligation. Before you cosign, read the loan agreement closely and ask yourself: Would I be prepared to cover this debt if needed?
Refrain from cosigning until you read the cosigner terms of your student’s loan agreement carefully and determine that you’re comfortable with the responsibility at hand. If a potential repayment makes you nervous or you know you won’t be able to afford it, be honest with yourself and your student. Cosigning isn’t an option for everyone and there are other ways you can help your student with college expenses.

Mistake 2: Assuming you can be released from the loan later

Many parents believe they’ll eventually get released from the student loans they cosigned and no longer be responsible for them. While a cosigner release may be an option down the road, not all lenders offer it and there’s no guarantee that your student will get approved for it.

Student loan refinancing 2 is another way to get released but not all students pursue this option. Before you cosign, make sure you’re okay with your responsibility involved. If you’re hoping to get released right off the bat, you may want to avoid cosigning in the first place.

Mistake 3: Not having a clear plan with the student about repayment

The best time to talk about repayment is before the loan is approved—not after the first bill arrives. Make time to talk openly about things like budgeting, who’s responsible for payments, and what happens if the student needs help.

Clear communication now can prevent confusion—and potential conflict—later.

Mistake 4: Not reviewing your own finances and credit impact

Cosigning doesn’t just affect the student—it affects your credit, too. The loan will show up on your credit report, and if payments are missed, your score could take a hit. It may also impact your ability to qualify for other credit in the future.

Additionally, becoming a cosigner can have a negative effect on your debt-to-income ratio (your income compared to your debt) and make it more difficult to get approved for other loans and lines of credit in the future. Make sure you accept all of these financial impacts and keep an eye on your credit so you always know where you stand.

Before you commit, take a close look at your own financial health. Can you afford to step in if needed? Are you comfortable adding this to your credit profile?

Learn more about cosigning with Earnest

At the end of the day, clear communication is the key to a successful cosigning experience. Make sure you and your student understand the legalities of co-signing and are comfortable with the repayment process.

Fortunately, Earnest makes it a breeze for cosigners and students to choose the ideal loan terms and repayment plan together. You can start the application for a student and quickly share it with them by tapping a button. Email and SMS updates will keep both of you informed of where you are in the application process so that everyone is in the loop. Start your application today—it only takes a few minutes to check your eligibility.

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Anna Baluch

Anna Baluch is a freelance finance writer from Cleveland, OH. She enjoys writing content that helps people from all walks of life make good financial decisions. Her areas of expertise include student loans, refinancing, mortgages, personal loans, budgeting, and debt management.

Disclaimer

This blog post provides personal finance educational information, and it is not intended to provide legal, financial, or tax advice.