How Child Support Is Calculated in Arizona: A Complete Guide

Child support is one of the most important financial obligations in family law, ensuring that children receive adequate care and support from both parents after separation or divorce. If you're navigating a child support situation in Arizona, understanding how the state calculates these payments can help you prepare for negotiations or court proceedings.

Arizona's Income Shares Model

Arizona uses the income shares model to calculate child support, which is the most common approach among U.S. states. This model is based on the premise that both parents share responsibility for supporting their children, and each parent should contribute proportionally to their income.

Under this system, the court first determines a combined parental income figure, then uses an Arizona Department of Child Support Services guideline table to find the basic support obligation for that income level. This obligation is then divided between parents based on each parent's percentage of the combined income. The parent with primary custody typically receives the support payment, while the other parent pays child support.

Income Considerations

Arizona law defines "income" broadly when calculating child support. Income includes:

• Wages, salaries, and tips
• Bonuses and commissions
• Self-employment income
• Rental income and property income
• Investment income and dividends
• Retirement and pension distributions
• Unemployment benefits
• Social Security benefits (in some cases)
• Disability benefits
• Spousal maintenance received from others

It's important to note that Arizona courts look at income, not just employment. If a parent is intentionally underemployed or unemployed, the court may calculate support based on earning capacity rather than actual current income. For example, if a parent previously earned $75,000 annually but is now working part-time for $30,000, the court might impute income based on their demonstrated earning ability.

The Arizona Child Support Guideline Table

Once combined parental income is determined, Arizona uses official guideline tables to calculate the basic child support obligation. These tables are adjusted annually and vary based on the number of children and combined parental income level.

For example, as of recent guidelines, parents with a combined monthly income of $5,000 supporting one child might have a basic support obligation of approximately $1,150 per month. For two children, the obligation increases to roughly $1,800 per month at the same income level. These figures are then split between parents proportional to their income contributions.

Custody and Parenting Time Impact

The amount of time each parent spends with the child significantly affects child support calculations. Arizona recognizes different custody arrangements:

• Sole custody: One parent has primary custody, and the other makes support payments
• Joint custody: Both parents share decision-making authority; support depends on parenting time percentages
• Equal parenting time: Each parent has the child roughly 50% of the time, which can substantially reduce or eliminate support obligations

When parenting time is equal or nearly equal, child support may be calculated differently. The non-custodial parent (or parent with less time) typically pays support unless incomes are significantly disparate.

Deviations from Guideline Amounts

While Arizona child support guidelines provide a framework, courts have discretion to deviate from these amounts when circumstances warrant. Factors that may justify deviation include:

• Extraordinary childcare or education expenses
• Health insurance costs for the child
• Significant disparity in parents' earning capacities
• The financial resources and standard of living available to the child
• Custody and parenting time arrangements
• Substantial gifts, inheritance, or financial windfalls
• The age of the child and independent financial resources

Courts must document in writing any reasons for deviating from guideline amounts, providing transparency in the process.

Additional Factors and Adjustments

Beyond the basic calculation, Arizona child support orders often include:

• Health insurance: Courts typically require one or both parents to maintain health insurance coverage for children
• Uninsured medical expenses: Parents often split costs for medical, dental, and vision care not covered by insurance
• Childcare costs: Expenses for daycare or after-school care may be shared by parents
• Work-related adjustments: Credits for childcare expenses necessary for parents to work

Modification and Review of Support Orders

Child support orders aren't permanent. Either parent can request modification if there has been a "substantial and continuing change in circumstances," such as job loss, significant income increase, or changes in custody arrangements. Arizona law also allows for automatic review of support orders every three years or when requested by either party.

Consult With a Licensed Arizona Family Law Attorney

Child support calculations involve complex financial analysis and state-specific legal principles that significantly impact your family's financial future. While this guide provides general information about Arizona's approach, your particular situation may involve unique circumstances affecting how support is calculated.

A licensed Arizona family law attorney can review your income documents, custody arrangement, and specific circumstances to help you understand what child support amounts might apply to your case. They can also represent you in negotiations or court proceedings to ensure your rights and your child's best interests are protected. If you're facing a child support determination or modification, consulting with a qualified family law attorney is a valuable step toward achieving a fair outcome.

"Support questions are easier to resolve when income records are organized early."

MyAttorneyList Editorial Team