Estimate Arizona spousal maintenance under the current Guidelines — an amount range plus the exact statutory duration by marriage length.
Educational estimate, not legal advice. Arizona courts may deviate for compelling reasons. Source: Arizona Spousal Maintenance Guidelines.
Arizona's spousal maintenance system changed dramatically in recent years. For decades there was no formula — judges had broad discretion. That ended on July 1, 2023, when the Arizona Supreme Court adopted official Spousal Maintenance Guidelines with a structured calculator, and the rules were refined again effective September 1, 2025. If you're reading an "Arizona alimony" article that says there's no formula, it's out of date.
Before any number is calculated, the requesting spouse must qualify. A court may award maintenance only if that spouse:
The guidelines use a needs-and-ability calculation: each spouse's "spousal maintenance income" is determined, reasonable living expenses are assessed, and a marriage-length-weighted portion of the income difference produces a target amount — capped so maintenance never leaves the recipient financially better off than the payer. This page estimates that range; the official Maricopa County calculator produces the controlling figure.
Duration is tied to the length of the marriage. These ranges are exact:
| Length of Marriage | Duration Range |
|---|---|
| Less than 2 years | 3 – 12 months |
| 2 to under 5 years | 6 – 36 months |
| 5 to under 10 years | 6 – 48 months |
| 10 to under 16 years | 12 – 60 months |
| 16 years or more | 12 – 96 months |
If the recipient's age plus years of marriage is 65 or more, the standard duration ranges don't strictly bind the court — it may award longer, even indefinite, maintenance, decided case by case. This protects older spouses from long marriages who realistically cannot retrain or re-enter the workforce.
For any divorce finalized after December 31, 2018, spousal maintenance is not tax-deductible for the payer and not taxable income for the recipient, under the federal Tax Cuts and Jobs Act. Arizona follows the same treatment for state tax.
Unless the decree says otherwise, maintenance can be modified on a substantial and continuing change of circumstances (job loss, large income change, retirement, recipient becoming self-sufficient). It normally ends on the recipient's remarriage or the death of either party.