Can I refinance with a co-signer? November 17, 2021 23:28 Updated Follow Yes, some of our partners allow a co-borrower and you can add a co-borrower on the application with the lender directly. Related articles Does checking my Auto Loan Refinance rate hurt my credit score? What information do you need about my vehicle? Is there an Auto Loan Refinance application fee? Why should I refinance my auto loan? What does it mean to exercise an option?