Working grandparents are encouraged to find out, not guess, if they qualify for this very important credit. To qualify for EITC, the taxpayer must have earned income either from a job or from self-employment and meet basic rules. EITC eligibility also depends on family size. The IRS recommends using the EITC Assistant, on IRS.gov, to determine eligibility, estimate the amount of credit and more.
When claiming the EITC or ACTC, you should file as soon as you have all necessary documents together to prepare an accurate return. In other words, file as you normally would.