I have a client whose daughter received a stimulus payment using the Non Filer IRS tool. The daughter, unfortunately, is a dependent of her mother. Her mother's return is now being rejected by the IRS as a result of the dependent Social Security number being used as a primary social security number on another return. My thoughts are to have the mother paper file her return claiming her daughter as a dependent with an explanation as stated above. Has anyone else experienced this? Would you return the $1,200 stimulus check with the mother's paper filed return? Thanks in advance for sharing your thoughts!