How is child support calculated?

Idaho child support is based upon two primary factors: 1) the adjusted gross income of each parent; and 2), the total number of overnights assigned to each parent.  This means that a parent with "primary" custody can receive little to no child support if the other spouse makes significant less income.  It also means that in a "50/50" custody split, one parent or the other can (and often does) pay some amount of support.  Except for rare instances, the courts do not allow parties to waive child support in a divorce or custody action.  This is because the money is for the children's benefit, and not that of the parent.