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Glossary · Loans

Cosigner

Definition

A Cosigner is a person who agrees to take legal responsibility for repayment of a loan if the primary borrower fails to make payments.

What is Cosigner?

A Cosigner is an individual, often a family member or close friend, who promises to pay off a loan if the primary borrower fails to do so. Lenders may require a cosigner when the borrower has a limited credit history or insufficient income to qualify for a loan on their own. Having a cosigner can help the borrower secure better interest rates or terms for a loan.

You might encounter a cosigner situation when applying for student loans, car loans, or personal loans if your credit score is lower than what is required by the lender. A cosigner's presence signals to the lender that even if the borrower defaults, someone else is there to cover the payments.

How Cosigner works

Imagine you want to take out a car loan for $20,000, but your credit history is limited. You might only qualify for a 10% interest rate on your own, resulting in significant extra costs over the life of the loan. With a cosigner who has a good credit score, you might secure a 5% interest rate instead.

Without Cosigner With Cosigner
Interest Rate 10%
5-Year Costs $25,000
Monthly Payment ~$417
Interest Rate 5%
5-Year Costs $22,000
Monthly Payment ~$367

In this example, having a cosigner reduces your total payment obligation by $3,000 over five years, lowering your monthly commitment by about $50.

Why Cosigner matters for your money

A cosigner can serve as the key to unlocking better loan terms, impacting your long-term financial health. For instance, if you are paying $50 less per month on a loan, that can save you $600 a year—money that you could otherwise invest or use for other expenses.

Moreover, successfully managing a cosigned loan can help you build your credit score, making it easier to qualify for loans independently in the future. But remember, the cosigner also takes on risk: if you default, their credit score could take a significant hit.

Common mistakes

  • Assuming a cosigner is just a formality.
  • Failing to communicate clearly with the cosigner about their role.
  • Not considering the impact on the cosigner's credit score.
  • Credit Score: A number representing the creditworthiness of a person, which impacts loan terms.
  • Annual Percentage Rate (APR): The cost of borrowing money on an annual basis, influenced by credit score and cosigner involvement.
  • Loan Default: Failing to make the required payments on a loan, affecting the credit score of both borrower and cosigner.

Frequently asked questions