View shared Family reminders on iCloud.com
If you joined Family Sharing, a shared reminder list called Family automatically appears in Reminders. Everyone in your family can view and update the Family reminder list.
Note: If you’re using upgraded reminders, you might not see all of your shared lists on iCloud.com. You also can’t manage sharing on the web. Use the Reminders app on a device with iOS 13, iPadOS, or macOS Catalina 10.15 to see and manage all your shared lists.
In Reminders on iCloud.com, do any of the following:
View family reminders: Select Family in the Reminders sidebar.
Add or remove a family reminder: See Create and delete reminders on iCloud.com.
All family members are automatically added to the Family reminder list. They can choose to unsubscribe from the list at any time. See Leave a shared reminder list on iCloud.com.