Past due installments of alimony and support money are a vested right, and the court has no authority to modify them in any particular, either as to amount or time of payment. Shuff v. Fulte.
Subsection (d) operates to define the person entitled to support as a judgment debtor and, therefore, such a person need only establish the existence of the obligation itself, i.e., the dissolution judgment and underlying agreement, and the obligor has the burden of proof with regard to a claim that he or she has satisfied the obligation in whole or in part. In re Jorczak.
By excluding the husband’s full pro form from a allocation from child support calculation, the trial court abused its discretion. In re Winne.
Where there has been a substantial change in circumstances, such as a change of custody, the factors set forth in this section should be applied and it is the responsibility of the parties to present the evidence with respect to the factors set forth therein. White v. White.
If the court determines that a substantial change in circumstances has occurred, then the court should determine the amount of child support to be paid and in doing so, the court should follow the statutory guidelines set forth in this section. In re Stone.
See Divorce Phoenix