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 Nebraska, similar to many states, parents of a minor child are encouraged to reach an agreement on the amount of child support. However, any agreement made by the parents must be reviewed by the court to ensure that it meets the child's best interests before it becomes a formal child support order. Nebraska uses child support guidelines to determine the appropriate amount of support, which considers the income of both parents and the needs of the child. If parents wish to modify the child support amount at a later date due to changes in circumstances, they must petition the court for a modification. The court will then review the request and issue a new order if it finds that a modification is warranted. It is important to note that only a court can legally alter the obligations set forth in a child support order, and informal agreements between parents without court approval do not change the legal responsibilities.