This should include individuals in your home who are financially supported at least 50% by your parent(s) or guardian(s). Usually this will mean you, your siblings or step-siblings, or other financially dependent relatives, like cousins or grandparents. Siblings who are 23 or under and are in college should also be included, even if they spend much of the year living elsewhere. Siblings who are attending graduate school should not be included.
You should NOT include people who live in your household that are NOT supported by your parent(s) or guardian(s).