The Arizona Spousal Maintenance Guidelines are the framework the court uses to calculate the amount and duration of spousal maintenance after first determining that a spouse is eligible under A.R.S. § 25-319(A). Arizona adopted formal guidelines effective September 2025 replacing the prior purely discretionary analysis with a structured range-based calculation.

The guidelines use the Arizona Spousal Maintenance Calculator maintained by the Maricopa County Superior Court at superiorcourt.maricopa.gov. The current version took effect January 1, 2026. Both spouses' incomes, family size, marriage length, and ages are the primary inputs. The output is a range of low, midpoint, and high for the monthly amount and a duration range.

The guidelines produce a range not a number. The court then decides where within the range the award falls or whether specific circumstances justify going outside the range with written findings explaining the deviation.