For Arizona parents who pay or receive child support, a bonus raises a practical question: does that money affect support?
In most cases, the answer is yes. How much a bonus affects support, however, depends largely on whether it is a regular part of a parent’s pay or a one-time event. An experienced family law attorney can explain how a bonus is likely to be treated in your case.
How Arizona Defines Income for Child Support
Arizona courts calculate support under the Arizona Child Support Guidelines, which took effect in 2022.
The Guidelines define “Child Support Income” broadly as income from any source, including bonuses, wages, salaries, and commissions. Child support income is not the same as gross or adjusted gross income for tax purposes. Because taxes are already factored into Arizona’s Schedule of Basic Support Obligations, a parent generally cannot argue that only the after-tax portion should count.
Regular Bonuses vs. One-Time Windfalls
The Guidelines give judges discretion to decide whether income that is non-continuing or non-recurring should be treated as income for child support purposes.
In practice, a parent who has received an annual bonus for several years running is likely to have that bonus counted. A one-time retention bonus, a discretionary award tied to a single project, or a bonus from an employer that has since ended its incentive program presents a much stronger case for exclusion.
How Courts Fold a Bonus Into Monthly Support
The Guidelines require every child support order to be for a monthly amount certain, so lump sum bonuses have to be converted. The Guidelines direct that fluctuating income within a year be annualized. For example, a parent who earns $60,000 in salary and a $12,000 annual bonus has $72,000 in yearly income, or $6,000 per month in child support income.
When bonuses vary from year to year, the Guidelines also allow a court to average fluctuating income over a period longer than a year, which can smooth out an unusually large or small payout.
Parents can also agree on how bonus income will be handled, such as by settling on a compromise income figure. An agreement that sets support at an amount different from the Guidelines calculation, however, is a deviation and requires a court finding that the Guidelines amount would be inappropriate or unjust.
Can a Bonus Change an Existing Order?
Under state law, a child support order can be modified only after a substantial and continuing change in circumstances. A single bonus rarely meets that standard, and Arizona’s Division of Child Support Services does not treat a one-time bonus as one.
A lasting shift in how a parent is paid is a different matter. A move to a commission and bonus pay structure, or a promotion that comes with a guaranteed annual bonus, could justify a new calculation. A modification generally takes effect on the first day of the month after the other parent receives notice of the petition, so a parent whose income has changed should not wait to file. Courts generally use a 15 percent increase or decrease as the benchmark for determining if a change is substantial.
Changes in bonus income also tend to surface because courts must order parents to exchange financial information at least every 24 months.
Arizona’s Guidelines Are Under Review
In June 2026, the Arizona Supreme Court announced that its Guidelines Review Subcommittee was conducting a periodic review. Any recommended changes must go through further review, with final approval resting with the Arizona Judicial Council. Until then, the 2022 Guidelines remain in effect. Revisions could affect future calculations, so confirm which version applies to your child support order.
Talk to an Arizona Family Law Attorney
Whether you received a bonus or believe one was left out of the calculation, the details matter. The attorneys at Webster Family Law help Arizona parents establish, review, and modify child support orders that reflect the true income of each. Call for a consultation.