when can you claim an adopted child on your taxes 
assuming they meet all qualifications needed to be claimed an adopted child can be claimed when the adoption has been legally finalized once legally adopted the irs treats the child the same as a biological child 1can i claim qualified adoption expenses for an adoptee older than 18 years old the irs explicitly states that an eligible child relating to qualified adoption expenses must be under the age of 18 the only exception to this age restriction is if the adoptee is physically or mentally incapable of self care 1can same sex couples claim qualified adoption expenses yes qualified adoption expenses include costs paid by a domestic partner who lives in a state that allows same sex parents 1