Forms and information for filing for child support or requesting child support direct deposits in Arizona. (Proof must be attached.) I do not owe any past-due support.Fill out the Arrearage Calculation Request form (PDF). View the Arrearage Calculation Request form for fees. You may also fill out this form online at the Family Support Center Website. Order and the Support Order(s) were signed. Use our printable child support demand letter template to require someone to pay their owed child support. Download it for free here. Forms for requesting, contesting, or modifying child support through the courts. This web article is designed to give you general information about the financial responsibilities of both parents when it comes to child support.