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 How do I add a co-signer after submitting my application? Does checking my Auto Loan Refinance rate hurt my credit score? Can I talk to someone on the phone about Auto Loan Refinance? How does SoFi Protect powered by MyLifeProtected work? Once I submit my application, how long does it take to hear about approval?