What are the obligations of a co-signer?

Co-signers are in fact co-borrowers and are jointly and severally liable for the loans. A co-signer guarantees the lender that if the primary borrower does not make payments, the co-signer will assume the loan obligations and make payments on it in the primary borrower's place. a cosigner of a car? because if they dont pay there car bills they will come after you for the money. and if you dont have it to pay they will reposses the car and you and the other persons credit is down the drain To pay the bill if the 1st signer defaults. If you don't pay, then your credit is ruined so be careful of who you cosign for. Be sure you can trust them and that they are responsible.