You may request to switch between fixed and variable interest rates after making at least 6 months of consecutive on-time payments. This process can happen no more than once every six months, and requests are subject to approval. To start the process, you will need to submit a new application by logging in to your Earnest account, going to "Products" and then "Student Loan Refinance". The application will ask you to consent to a hard credit inquiry. While you do need to enter your SSN to consent, have no fear: we never pull a new hard credit inquiry for an active Earnest client.
Please note that the interest rate on your new loan will be based on prevailing interest rates and your financial profile at the time of your request. As such, this rate may be different from those you were offered when your current loan was signed. You are also subject to the lending laws of the state you currently reside in, which means that some rates may not be available in your state (see here for more details).