California state guidelines allow parents to request add-ons to their child support orders for additional expenses that benefit the child. These add-ons could include, among others:nnHealth care expenses for a childnChildcare costsnEducation costsnSpecial needs costsnnIn some instances, add-ons are mandatory. For example, a child is uninsured, and the parent will need help paying medical bills. In other cases, a judge may decline an add-on if they do not see a purpose or need for it.