The formula uses the parties' incomes and salary, as well as whether or not child support is being paid to perform a calculation. This New York alimony calculator calculates New York maintenance using the New York alimony formula.WorksheetsWorksheets to calculate guideline amounts of maintenance and child support. Optional tools to help with calculations are below. Use our alimony calculator to see different alimony scenarios around the country. Alimony, or "spousal maintenance" in New York, is a payment that one spouse makes to the other spouse during or after a divorce. Specific factors are determined in calculating spousal support in New York including income of both parties and the duration of marriage. Get an estimate for alimony payments and duration. Get an idea on how much money a month you can expect to pay, and for how you can expect to pay it. Estimate Alimony Payments.