The 2016-17 Online Registration (Annual Family Check-in) is now live. You need to login to the portal as a parent/guardian (not as your student), and then find the link for the Annual Family Check-in. Unfortunately, that link is not very prominent. You will need to find your inbox, expand it, and then find the message that says "2016-17 Annual Family Check-in". Once you click on that message, there will be a link that will open the check-in.
You can also read much more information about 2016-17 registration.