Arizona Child Support Calculator
Calculate child support in Arizona using the state's official Income Shares Model. Includes custody adjustments, health insurance credits, and childcare deductions.
Arizona divorces typically cost 24% less than the national average of $12,900.
Child Support in Arizona
- Formula
- Income Shares Model
- Income cap
- None specified
- Equal parenting presumption
- Yes - 50/50 default
- Property system
- Community property
Child Support Calculator in Arizona: What You Should Know
Arizona uses the Income Shares Model applied to gross income, with a guideline schedule that covers combined monthly income from $0 to over $20,000. Arizona's equal parenting time presumption has a direct effect on child support: when parenting time is equal (50/50), the child support calculation uses a specific formula that accounts for both parents' direct expenses. Arizona updates its child support guidelines periodically. The current guidelines were adopted in 2022. Arizona also requires that health insurance be ordered as part of every child support order when available at a reasonable cost.
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Locked to Arizona on this page.
Use your gross (before-tax) monthly income. If you are paid annually, divide by 12.
Use their gross (before-tax) monthly income. If they are paid annually, divide by 12.
This estimate is for planning purposes only and does not constitute legal or financial advice. Consult a licensed family law attorney in your state for guidance specific to your situation.
Child Support in Arizona - Frequently Asked Questions
How is child support calculated in Arizona?
Arizona uses the Income Shares Model to calculate child support. Both parents' gross incomes are combined, and each parent's share of the total obligation is proportional to their share of the combined income.
Can child support be modified in Arizona?
Yes. Either parent can request a child support modification if there has been a substantial change in circumstances, such as a significant change in income, change in custody arrangements, or changes in the child's needs. Courts in Arizona typically require a change of at least 15-20% in the support amount to justify modification.
Does custody arrangement affect child support in Arizona?
Yes. Parenting time is a significant factor in child support calculations. Arizona presumes equal parenting time by default. Parents with shared custody (typically defined as 40% or more overnights) receive a proportional reduction in their child support obligation.
Is there an income cap for child support in Arizona?
Arizona does not set a specific income cap in its child support formula. However, courts have discretion to deviate from the guideline amount in cases with very high incomes.
How long does child support last in Arizona?
Child support in Arizona typically continues until the child turns 18 or graduates from high school, whichever is later. Support may continue longer if the child has a disability or if the parents agree to extend support for college expenses.
This estimate is for planning purposes only and does not constitute legal or financial advice. Consult a licensed family law attorney in your state for guidance specific to your situation.