The Earned Income Tax Credit (EITC) is a refundable tax credit available to eligible workers earning relatively low wages. Because the credit is refundable, an EITC recipient need not owe taxes to receive the benefit. Eligibility for and the amount of the EITC are based on a variety of factors, including residence and taxpayer ID requirements, the presence of qualifying children, age requirements for childless recipients, and the recipient's investment income and earned income. Tax filers with income above certain thresholds-these thresholds are based on marital status and number of qualifying children-are ineligible for the credit. The EITC varies based on a recipient's earnings. Specifically, the EITC equals a fixed percentage (the "credit rate") of earned income until the credit amount reaches its maximum level. The EITC then remains at its maximum level over a subsequent range of earned income, between the "earned income amount" and the "phase-out amount threshold." Finally, the credit gradually decreases to zero at a fixed rate (the "phase-out rate") for each additional dollar of adjusted gross income (AGI) (or earnings, whichever is greater) above the phase-out amount threshold. The specific values of these EITC parameters (e.g., credit rate, earned income amount) vary depending on several factors, including the number of qualifying children a tax filer has and his or her marital status. For 2014, the maximum EITC for a tax filer without children is $496 per year. In contrast, the 2014 maximum EITC for a tax filer with one child is $3,305 per year; for two children, $5,460 per year; and for three or more children, $6,143 per year. The EITC is provided to individuals and families once a year, in a lump sum payment after individuals and families file their federal income tax return. The credit may be received in one of three ways: (1) a reduction in federal tax liability; (2) a refund from the Treasury if the tax filer has no income tax liability; or (3) a combination of a reduced federal tax liability and a refund. The amount of the credit a tax filer receives is based on the prior year's income, earnings, and family composition (marital status and number of qualifying children). That is, the EITC paid in 2015 will be based on factors from 2014. The EITC cannot be counted as income in determining eligibility for or the amount of any federally funded public benefit program. An EITC refund that is saved by a tax filer does not count against the resource limits of any federally funded public benefit program for 12 months after the refund is received. In 2012, a total of $64.1 billion was claimed by 27.8 million tax filers (19% of all tax filers), making the EITC the largest need-tested anti-poverty cash assistance program. In that year, 97% of all EITC dollars were claimed by families with children. However, there was considerable variation in the share of returns claiming the EITC by state, with a greater share filed in certain southern states compared to other regions of the country.