Yes, you can set up a direct deposit to your SoFi Checking and Savings account for your Social Security benefits.
To get started please reference the instructions and information on the linked government site: https://www.ssa.gov/deposit/howtosign.htm.
You can locate the routing number and account number of your SoFi Checking and Savings account by touching the 'More' button from the Banking home page.
How do I set up direct deposit for SoFi Checking and Savings?