Maintenance, or spousal support, is crucial when major life changes occur within family dynamics. Use our Texas maintenance calculator.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. In most cases, the Texas Family Code provides that spousal maintenance may only be ordered for spouses that have been married for 10 years or longer. Easily estimate your alimony payments in Texas with our user-friendly Texas alimony calculator. Consider income, marriage length, children, and more. Easily estimate your alimony payments in Texas with our user-friendly Texas alimony calculator. Consider income, marriage length, children, and more. Unlike child support, spousal support is not required in a divorce decree.