In most states the parents of a minor child may agree to the amount of child support, and courts encourage the parents to do so. But the court will generally review the agreed amount of child support and determine whether it is in the best interest of the child before signing a child support order. And if the parents later agree to change the amount of or need for child support, they should return to court and get a signed order that reflects the agreed or changed amount, as only the court may change the legal obligation under a child support order.

In Utah, as in many states, parents of a minor child can negotiate and agree upon the amount of child support. This collaborative approach is often encouraged as it can be more amicable and efficient. However, any agreement reached by the parents must be reviewed and approved by the court to ensure that it meets the child's best interests. Utah courts utilize child support guidelines to determine the appropriate amount of support, which considers factors such as the income of both parents, the number of children, and custody arrangements. If parents wish to modify an existing child support order, they must petition the court for a modification. The court will then review the request and determine if there has been a substantial change in circumstances that justifies the change. The court's approval is necessary to alter the legal obligation of the child support order, and informal agreements between parents without court approval are not legally binding.