How do I sign up for SoFi Invest? May 28, 2020 23:19 Updated Login to your SoFi account, click on "Invest" at the top, then select "New Account". Related articles When will my funds/money be available in my Invest account? How much growth can I expect from SoFi Invest? What types of accounts do you offer? What is SoFi Invest? How do I create an Invest account? How long does it take to open a SoFi Invest account?