You need to determine if the child paid for over 50% of their own support. It is based on what is paid for support, not necessarily on income (for example, some of the child's income may have been used for other things, or went into a savings account). Here is a worksheet to help you:
<a rel="nofollow" target="_blank" href="
https://apps.irs.gov/app/vita/content/globalmedia/teacher/worksheet_for_determining_support_4012.pdf...>
