[FAFSA®] Can a FSA ID be connected to the same email address or mobile phone number?

No. Each email address and mobile phone number can only be used with one FSA ID. Remember that your FSA ID serves as your legal signature. If you forget your username or password, a secure code can be emailed or texted to you. So for security reasons, you don’t want that code being sent to someone else, even a family member. Only you can “sign” for you.