View versions of the Child Support Calculator for the general public and attorneys with cases in Maricopa County's Superior Court. Court Forms and Instructions.Completing the Forms. This calculator is for statewide use. The Child Support Calculator is an interactive program that will calculate a child support amount based on the Arizona Child Support Guidelines. DISCLAIMER Information for those looking for forms, location information, or legal resources pertaining to all court jurisdictions in Arizona. Forms and information for filing for child support or requesting child support direct deposits in Arizona. Below, find a fill-in-the-blank template, as well a detailed example of a declaration letter. Keep in mind that court requirements and preferences vary. The Self-Service Center is designed to provide information and forms for persons who are representing themselves in court.