EIC: Earned Income credit- a refundable tax credit alllowed to qualified low wage earners. the credit is larger for people supporting children. see
http://www.irs.gov/individuals/article/0,,id=96406,00.htmlCTC: Child tax credit- $1000 credit for every child, under age 17,you claim as a dependent. It may be partially refundable, if you have sufficient earned income. see
http://www.irs.gov/newsroom/article/0,,id=106182,00.html
