They'll sent you about $111 of "earned income credit". $300 income is not enough to get any child tax credit.
The money you hear about people
getting for just filing a tax return claiming kids requires you to ...
If you are a student, over age 23, and are not claimed as a
dependent by someone else (e.g. your parent) you may be eligible for the up to
$1000 refundable American Opportunity (tuition) Credit. That credit is not
dependent on having either kids or earned income. You must be at least a half
time undergraduate student and actually paid tuition (not just had it paid by
grants). Tuition paid by loans counts as paid by you (since you have to pay
that back, someday)
A child can be the “qualifying child” dependent of any close
relative in the household. If you live with someone else, e.g. your parents, it
may be better if they claim your child.
