Last reviewed 08-20-2026Short-Sale.com Editorialglossary
Co-signer or co-borrower
CFPB
Updated 08-20-2026
Co-signer or co-borrower
A co-signer or co-borrower is someone who agrees to take full responsibility to pay back a mortgage loan with you. This person is obligated to pay any missed payments and even the full amount of the loan if you don’t pay. Some mortgage programs distinguish a co-signer as someone who is not on the title and does not have any ownership interest in the mortgaged home. Having a co-signer or co-borrower on your mortgage loan gives your lender additional assurance that the loan will be repaid. But your co-signer or co-borrower’s credit record and finances are at risk if you don’t repay the loan.
CFPB · p. 5
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