To complete your KYC identity verification you will need the following:
Valid government ID that:
If investing, it must expire after the subscription document's due date
If not investing yet, it must expire more than sixty (60) days from now
Camera for selfie verification
U.S. or non-U.S. tax ID number
The process is easy and straightforward and is usually completed in about four minutes.
You can find your outstanding identity verification tasks here.