You will need to update it when things change.  I recommend setting a calendar reminder for once a year (you can do more frequently if you’d like) and taking time to sit down with your organizer and review it to be sure it is up to date. The first page of the workbook is an “Update Log” so you can specify when you last updated it.  And if you use the Excel File, each time you save it, the date will update.  This will allow loved ones to know how up to date it is.