This calculator is for statewide use. Use our FREE online Arizona alimony calculator to determine spousal maintenance costs in AZ. ✓ Instant.Select the applicable time-sharing arrangement from the drop-down box below. The Child Support Calculator is an interactive program that will calculate a child support amount based on the Arizona Child Support Guidelines. Learn how Arizona's child support guidelines work, including how to calculate support, collect support payments, and change your existing support order. In a dissolution of marriage (divorce) or legal separation, one party may request that the court order the other party to pay spousal maintenance. They consider amount of time with each parent, incomes of both parents, ages of the children, medical, child care and educational expenses. The calculation then figures out how much that is per day to raise the child. The formula requires you to first determine the difference between the income of each spouse. Spousal maintenance can be paid in a lump sum of money or be made in payments spread out over a specified period of time.