Worksheets to calculate guideline amounts of maintenance and child support. Optional tools to help with calculations are below.This page will help you calculate the figures a New York judge would consider in determining how much should be paid in maintenance and child support. In this video, learn how to calculate maintenance (alimony) in New York. Mainteance in New York is calculated pursuant to a formula. Specific factors are determined in calculating spousal support in New York including income of both parties and the duration of marriage. Couples and the courts can use NYS spousal maintenance calculators to decide on the amount to be paid. This page tells you about how to get an Order for Child Support. To get an order for child support, you must first file a case with the Court. A system in place to determine the presumptively correct sum for spousal maintenance or alimony.