Child support and spousal support are handled in Family Court. Usually, you ask for child support in Family Court in the county where you and the child live.Free Consultation - Call 800.696. 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. New York provides forms and calculators to figure out estimated amounts of spousal maintenance (New York's term for alimony) and child support. You can go to court to file the petition or go online to New York State DIY (Do-. It-Yourself) Forms at nycourthelp. New York utilizes a formula when calculating spousal support and child support. New York uses a formula as a guideline for setting alimony payments, but courts can exercise considerable discretion in ordering alimony. Most child support payments are made through income withholding.