Does Texas Have an Alimony Calculator? Unlike with child support, Texas doesn't have a formula for calculating spousal maintenance.Worksheets to calculate guideline amounts of maintenance and child support. Optional tools to help with calculations are below. Maintenance, or spousal support, is crucial when major life changes occur within family dynamics. Use our Texas maintenance calculator. The formula uses the parties' incomes and salary, as well as whether or not child support is being paid to perform a calculation. Specific factors are determined in calculating spousal support in New York including income of both parties and the duration of marriage. Child support and alimony calculators are fantastic tools for giving a snapshot of your financial obligations post-divorce. New York courts use standardized guidelines to arrive at a suggested amount of spousal maintenance.