i am a step father of an 8 year old boy, his father is recently back on the scene after a 4 year absence during which time he has made no maintenance payments, he moved house every time the CSA caught up. He is recently causing my partners son to rebel and saying he wants his son to live with him. IF his son goes to live with him, am i as the childs mothers partner liable for CSA payments to the father? Or is my income taken into account? i have not adopted this boy or have any parental rights. Anyone any ideas??