SoFi appreciates that many couples want to integrate their finances, so the bank aims to make it easier to create a joint account. When you open a SoFi account, you have the option to add a co-owner. Of course, you will need to provide ID verification and personal details for both parties. However, you can also add a second person to your existing SoFi account. You’ll find an “Add Joint Account Holder” link on your account dashboard. This will provide a prompt to send an email invitation to the other person.