How the Arizona child support calculator works
This Arizona child support calculator follows the Arizona Child Support Guidelines adopted by the Arizona Supreme Court for orders from January 1, 2022, in the corrected text of Administrative Order 2022-116, and the arithmetic of the court’s official calculator.[1][3]
- Income from all sources before deductions; each parent is presumed able to work full time at least at minimum wage.[5]
- Adjusted income: subtract court-ordered spousal maintenance and child support for other children that are actually paid.
- Basic obligation from the schedule at the closest $50 of combined adjusted income (an amount exactly halfway rounds up).
- Older-child adjustment: plus 10% of the basic amount for the share of children aged 12 or older.
- Add-ons: the children’s medical, dental and vision premiums and work-related child care.
- Parenting time: the parent with less time subtracts the table percentage of the basic amount plus the older-child adjustment.
- Self-support reserve, whole-dollar rounding and the $8 minimum.[1]
Arizona schedule of basic support obligations
The schedule runs from $750 to $30,000 of combined monthly adjusted income for one to six children; above $30,000 the $30,000 amount applies unless a higher need is proven.[1]
| Combined adjusted income | 1 child | 2 children | 3 children | 4 children |
|---|---|---|---|---|
| $2,000 | $395 | $601 | $727 | $812 |
| $4,000 | $750 | $1,123 | $1,349 | $1,507 |
| $6,000 | $953 | $1,429 | $1,700 | $1,899 |
| $8,000 | $1,092 | $1,622 | $1,912 | $2,135 |
| $10,000 | $1,274 | $1,889 | $2,224 | $2,484 |
| $15,000 | $1,650 | $2,415 | $2,801 | $3,129 |
| $20,000 | $1,991 | $2,912 | $3,376 | $3,771 |
Arizona parenting time table
The parent with less parenting time reduces their share by a percentage of the basic amount (plus the older-child adjustment) that depends on their parenting days a year; with essentially equal time, both parents take 50%.[1]
| Parenting days | Adjustment |
|---|---|
| 0–19 | 0.0% |
| 20–34 | 2.5% |
| 35–49 | 5.0% |
| 50–69 | 7.5% |
| 70–84 | 10.0% |
| 85–99 | 15.0% |
| 100–114 | 17.5% |
| 115–129 | 20.0% |
| 130–142 | 25.0% |
| 143–152 | 32.5% |
| 153–163 | 40.0% |
| 164 or more | 50.0% |
A day is 24 hours; a remainder of 12 hours or more counts as a day, 6 to 11 hours as half a day and 3 to 5 hours as a quarter day. With equal time, the parent whose worksheet result is positive pays, usually the higher earner.[1] The guidelines’ own examples round income shares to whole percentages; the official calculator uses four decimals, as this one does, so results can differ from the printed examples by a few dollars.
Self-support reserve and minimum order
The self-support reserve is 80% of full-time minimum-wage earnings: $2,100.80 a month with the 2026 Arizona minimum wage of $15.15 used in the court’s calculator.[1][3] If the paying parent’s adjusted income minus the reserve is less than the support amount, the court may reduce support to that difference; if it is zero or less, support is zero or nominal. No order is made for less than the $8 monthly clearinghouse fee.
Deviations and the guidelines review
A court may deviate with written findings, for example for significant income disparity with substantial parenting time for both parents, combined income above $30,000, travel costs or extraordinary health needs.[1] The Arizona Supreme Court’s quadrennial review of the guidelines is under way; until new guidelines are adopted, the 2022 guidelines apply.[6]
Official Arizona calculator and resources
The statewide calculator is published by the Superior Court in Maricopa County and linked from the Arizona Judicial Branch.[4][7]
- Arizona Child Support Calculator
- Arizona Child Support Guidelines
- Arizona DES Division of Child Support Services
Neighboring Utah uses a joint custody threshold of 111 overnights (Utah child support calculator) and California a continuous timeshare formula (California child support calculator). Compare all states in 50/50 custody child support.
An estimate, not an order. The court decides the amount. Not legal advice; see our legal disclaimer.
Frequently asked questions
How much is child support in AZ for 1 kid?
It depends on both incomes and parenting time. At $10,000 combined adjusted income the schedule gives $1,274 a month for one child; the paying parent owes their income share, reduced by the parenting time adjustment.
How many days reduce child support in Arizona?
The parenting time adjustment starts at 20 days a year (2.5%) and rises to 50% at 164 days or more.
What is the minimum child support in Arizona?
No order is made below the $8 monthly clearinghouse fee, and a paying parent whose income is below the self-support reserve may owe nothing or a nominal amount.
Does Arizona use gross income for child support?
Yes. Arizona uses gross income from all sources, minus spousal maintenance and other child support actually paid.
Sources
- Administrative Order No. 2022-116, Arizona Child Support Guidelines and Schedule of Basic Support Obligations
- Arizona Child Support Guidelines
- 2022 Child Support Calculator (Excel workbook, minimum wage $15.15, clearinghouse fee $8)
- About the Child Support Calculator
- A.R.S. § 25-320, Child support
- Child Support Guidelines Review Subcommittee
- Child Support Calculator