I am filing my daughters return. She is claiming single and has twin girls. The father claimed the children as dependents and EIC. He did not claim the child care credit. I claimed the girls on my daughters return as Non-dependent child EIC/dependent care only. Turbo Tax said she qualifed for the EIC and child care. E filed her return last night and said it was rejected with this error SEIC-F1040-606-01, the qualifying child's social security number cannot be used more than once in a tax return or on another return.
