Texas does not have alimony in the traditional sense. Unlike with child support, Texas doesn't have a formula for calculating spousal maintenance.In this article, learn about how spousal maintenance is ordered, the requirements to be eligible for spousal maintenance, and other important information. This research guide provides resources and information for spousal maintenance, sometimes referred to as alimony in other states, as part of a divorce case. In general you need to have been married at at least 10 years to qualify for spousal maintenance. Find out what judges consider when deciding how much alimony to award during or after divorce—and when courts use formulas to calculate spousal support. Find out what judges consider when deciding how much alimony to award during or after divorce—and when courts use formulas to calculate spousal support. The most important form is probably your FL 150, called the income and expense declaration. In California, factors for permanent support are set out in the Family Code. I'm assuming other states have similar code sections.