Arizona Judicial Branch

Child Support Calculator Information

The 2015 Child Support Calculator is available for use prior to the effective date of the Arizona Child Support Guidelines on July 1, 2015. The 2015 Child Support Calculator is an interactive program that will calculate a child support amount based on the Arizona Child Support Guidelines that will become effective July 1, 2015. The calculator is designed to function with Adobe Acrobat Reader version 10.

The purpose of this calculator is informational and educational only and does not constitute legal advice.  The amount of child support a court will order for any particular case may be different from the amount estimated by the calculator.  The court has the final authority to determine the amount of child support awarded.  The amount yielded by this calculator is only an estimate and is not a guarantee of the amount of child support that will be awarded.

In cases of default, the guidelines in effect at the time of filing the action will be used. The parties may agree to use either the guidelines in effect at the time of filing the action or those in effect at the time the order is entered.

2015 Child Support Calculator: On January 14, 2015, the Supreme Court adopted technical revisions to the Arizona Child Support Guidelines. The newly adopted statewide child support guidelines will be effective July 1, 2015, for all child support orders, whether original orders or modifications of pre-existing orders, entered after June 30, 2015. (Arizona Child Support Guidelines and Administrative Order 2015-6).

2011 Child Support Calculator: The 2011 child support calculator is still available for calculating all child support orders entered after May 31, 2011, and before July 1, 2015, whether they are original orders or modifications of pre-existing orders, unless the court determines otherwise based on good cause shown.

After selecting the child support calculator you will use for your child support calculation, gather the information listed below, if applicable to your case.
  • Children’s names and dates of birth.
  • Gross income of both parents.
  • Spousal maintenance paid or received by either parent.
  • Court-ordered child support for children of other relationships.
  • Medical, dental and vision insurance costs for children only.
  • Extra education expenses paid.
  • Extraordinary child expenses paid.
  • Parenting time days per year, if not equal parenting time.
  • Court-ordered arrears paid by the noncustodial parent.
The following agencies provide assistance with child support issues:
A.R.S. § 46-441 states "[p]ayment of any money directly to an obligee or to any person other than the Support Payment Clearinghouse will not be credited against the support obligation, unless the direct payments were ordered by the court or made pursuant to a written support agreement by the parties."
  • Title IV-D cases: If you have a IV-D child support case with the DCSS, please visit If the DCSS becomes involved with the enforcement of your court ordered support, you will be required to make your payments to the Arizona Centralized State Disbursement Unit (SDU), the Arizona Support Payment Clearinghouse, which is the collection and disbursement unit for processing child support and maintenance payments. Federal law requires each state to operate a SDU.
  • Non IV-D cases: If you have a child support case in the superior court not being enforced by DCSS, contact your local Clerk of the Superior Court, or in Maricopa County, visit Family Support Services.
  • Information about making payments:
  • Payment Gateway (Making payments; missing/lost checks sent to the clearinghouse for case enforced by DCSS):
  • Frequently asked questions about Payment Gateway: