Question:  Are there any time limits to establishing the paternity of a child?

Answer:   If there is a "presumed" father, meaning the mother was married to someone at the time of the child's birth, then under most circumstances, testing would have to occur by the child's fourth birthday. Texas Family Code 160.607. If there is no presumed father, meaning the mother was single at the time of the birth, then there is no time limit for establishment of paternity under Texas Family Code 160.606.