A divorce that has been fully litigated and which results in a final divorce decree is rarely allowed to be modified by the parties
Divorce decree terms are rarely allowed to be modified. Some courts allow some terms to be modified later due to a substantial change of circumstances by either or both parties.
Sometimes divorce decrees are declared non-modifiable because the parties have agreed to the terms and agree they should remain non-modifiable. These are called non-modifiable orders by agreement of the parties. Essentially the agreement becomes the standing order of the court.
Examples of non-modifiable orders include final orders such as alimony and the final disposition of community and separate property.