Calculation
Arizona: Educational approximation of Arizona's guideline range using a conservative income-disparity proxy: 20% of the difference between payer spousal-maintenance income and recipient spousal-maintenance income, adjusted for marriage length and self-sufficiency factors. Texas: Texas is a strict limited-eligibility maintenance state. Court-ordered spousal maintenance is not automatic and is available only if the requesting spouse lacks sufficient property to meet minimum reasonable needs and satisfies a statutory eligibility ground. Texas has no formula for the actual award amount, but it has a hard statutory maximum of the lesser of $5,000 per month or 20% of payer gross monthly income.
Duration
Arizona: Arizona guideline duration is tied to marriage length and self-sufficiency. Standard ranges are: under 24 months of marriage, 3-12 months; 24 to under 60 months, 6-36 months; 60 to under 120 months, 6-48 months; 120 to under 192 months, 12-60 months; and 192 months or more, 12-144 months or 50% of the marriage length, whichever is greater, unless the Rule of 65, disability, or extraordinary circumstances apply. The Rule of 65 applies when the requesting spouse is at least 42, the marriage lasted at least 16 years, and age plus marriage length equals or exceeds 65; in those cases duration is determined case-by-case. Texas: Texas generally requires maintenance to last only for the shortest reasonable period that allows the recipient to earn enough income to meet minimum reasonable needs. Maximum duration is generally 5 years for family-violence eligibility cases or marriages of at least 10 but less than 20 years, 7 years for marriages of at least 20 but less than 30 years, and 10 years for marriages of 30 years or more. Maintenance based on the recipient's disability or care of a disabled child may continue as long as the qualifying condition continues, subject to review.
Modification
Arizona: Spousal maintenance may generally be modified upon a substantial and continuing change in circumstances unless the decree expressly makes maintenance non-modifiable. Courts review changes affecting need, income, employability, or ability to pay. Texas: A maintenance order may be modified upon a material and substantial change in circumstances affecting either party. Any modified award remains subject to Texas statutory caps and limitations.