We are missing some information. Who is "him" that may have been claimed? Does your daughter have a child who she is claiming as her dependent? Not sure what you mean by the "full" amount of EIC. The amount of earned income credit is based on the person's filing status, how many children and on how much income they earned by working.
Please use the IRS tool for help with the amount of EITC:
https://www.irs.gov/credits-deductions/individuals/earned-income-tax-credit/use-the-eitc-assistant
https://ttlc.intuit.com/questions/1899157-what-are-the-qualifications-for-the-earned-income-credit-e...
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
