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A.R.S. § 25-320

Child Support in Arizona: How the Court Determines the Amount

Verified April 4, 2026 • 57th Legislature, 1st Regular Session

Arizona courts can order either or both parents to pay child support in a divorce, legal separation, or standalone support proceeding. The amount is calculated using guidelines established by the Arizona Supreme Court, and the court presumes each parent is capable of at least full-time minimum wage employment.

Title 25, PREMARITAL AND MARITAL AGREEMENTS

azleg.gov

How Child Support Is Calculated

Child support in Arizona is not left to a judge's discretion alone. The Arizona Supreme Court establishes guidelines that produce a specific dollar amount based on each parent's financial circumstances. The court follows these guidelines unless it makes a written finding that applying them would be inappropriate or unjust in a particular case.

The supreme court shall establish guidelines for determining the amount of child support. The amount resulting from the application of these guidelines is the amount of child support ordered unless a written finding is made, based on criteria approved by the supreme court, that application of the guidelines would be inappropriate or unjust in a particular case.

A.R.S. § 25-320(D)

The guidelines account for several factors, including each parent's financial resources and needs, the child's financial needs and physical or emotional condition, the standard of living the child would have had in an intact household, and educational expenses. The court reviews these guidelines at least every four years.

Retroactive Support and Employment Presumptions

The court can order child support retroactively. If the parents lived apart before filing and no support order existed, the court may order support going back to the date of separation, though no more than three years before the filing date. This retroactive application uses the same guidelines.

Arizona law also includes an important presumption: every parent is assumed capable of working full-time at the applicable minimum wage unless contrary testimony is presented. This presumption does not apply to noncustodial parents under eighteen who are still in high school. Medical insurance for the child is also addressed. The court can order one or both parents to maintain health coverage and assign responsibility for uninsured medical costs.

For families going through a divorce, understanding how child support interacts with the overall financial picture is important. Child support obligations affect estate planning decisions, particularly when it comes to life insurance requirements and ensuring support continues if something happens to the paying parent.

25-320. Child support; factors; methods of payment; additional enforcement provisions; definitions A. In a proceeding for dissolution of marriage, legal separation, maintenance or child support, the court may order either or both parents owing a duty of support to a child, born to or adopted by the parents, to pay an amount reasonable and necessary for support of the child, without regard to marital misconduct. B. If child support has not been ordered by a child support order and if the court deems child support appropriate, the court shall direct, using a retroactive application of the child support guidelines to the date of filing a dissolution of marriage, legal separation, maintenance or child support proceeding, the amount that the parents shall pay for the past support of the child. D. The supreme court shall establish guidelines for determining the amount of child support. The amount resulting from the application of these guidelines is the amount of child support ordered unless a written finding is made, based on criteria approved by the supreme court, that application of the guidelines would be inappropriate or unjust in a particular case. N. The court shall presume, in the absence of contrary testimony, that a parent is capable of full-time employment at least at the applicable state or federal adult minimum wage, whichever is higher.
View on azleg.gov

This page provides general legal information about Arizona statutes and is not legal advice. For guidance on how this law applies to your situation, speak with a qualified attorney.

Related Questions

What happens if I do not name a guardian for my minor children?

Without a named guardian, the court decides who raises your children. Judges do their best, but they do not know your values or wishes. Naming a guardian in your will gives you control over this decision.

How does divorce affect my estate plan in Arizona?

Arizona law (A.R.S. 14-2804) revokes many estate plan provisions favoring a former spouse, but ERISA-governed retirement plans and some other assets require manual beneficiary updates. A full estate plan review after divorce is essential.

Related Statutes

§ 25-316Temporary Orders During Divorce or Separation in Arizona
§ 25-319Spousal Maintenance in Arizona: Eligibility and Factors
§ 25-301Grounds for Dissolution of Marriage in Arizona
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