On my SoFi Private Student Loan, can I have a co-signer who is not a US Citizen? January 21, 2021 15:52 Updated Your co-signer must be either a US Citizen or Permanent Resident. Related articles Do you offer Private Student Loans to international students or permanent residents? Does SoFi offer a co-signer release for their Private Student Loans? Do I need to be related to my co-signer? How do I add a co-signer after submitting my application? What happens if my school certifies less than $5,000?