Board Thread:The Quarters - Q & A/@comment-110.20.203.206-20140627012950/@comment-31285914-20170228215910

I found the following while reading this link: http://habitica.wikia.com/wiki/Checklist.

Resetting Checklist To-Dos
Unchecking a completed To-Do with a checklist will deduct the same amount of GP, XP, and MP that you gained when you completed the To-Do.

However, if you first untick all the checklist items before you uncheck the To-Do itself, you would lose only the base GP, XP, and MP for the To-Do, not the rewards given for the checklist items. Because of this behavior, To-Do checklists can also be used for regular tasks that don't fit in a daily schedule (e.g. weekly lists of goals): you would check off the full To-Do at the end of the week to earn the rewards and then reset it for the following week.