Do I need to be related to my co-signer? January 21, 2021 15:41 Updated No, we do not require that the co-signer is related to the student. Related articles What is the minimum credit criteria I must meet to qualify for a SoFi Private Student Loan? Do you offer Private Student Loans to international students or permanent residents? On my SoFi Private Student Loan, can I have a co-signer who is not a US Citizen? Does SoFi offer a co-signer release for their Private Student Loans? How do I add a co-signer after submitting my application?