Arizona Child Support Guidelines are a set of legal rules that determine the amount of child support that a parent must pay for their children. The guidelines are based on the state's Child Support Guidelines Worksheet, which takes into account the incomes of both parents and factors in the number of children involved in the support agreement. There are three types of Arizona Child Support Guidelines: standard, joint custody, and split custody. The standard guidelines are used in cases where both parents provide financial support for the children. The joint custody guidelines are used in cases where both parents have physical and legal custody of the children. The split custody guidelines are used in cases where the children are split between the parents. The guidelines also take into account other factors such as the cost of health insurance, daycare expenses, and any special needs of the children.