Categories FAQsThe children live with my ex-partner who is in a new relationship. Do I still have to pay child support? Post author By admin Post date August 22, 2013 Both parents have an obligation to financially support their children until they are at least 18 years old. A new partner does not have a legal obligation to support the child. ← I have lost my job and cannot afford to pay child support. What are my options? → I have a child support assessment. My child turns 18 this year and is still at school. Can I do anything?