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. This calculator provides an estimate for a single source of income. The with child support formula is actually a family of formulas, built around the custodial and child support arrangements for the children. Estimate child support with Bryan Fagan, PLLC's alimony Texas calculator. Get accurate support payment calculations and expert advice. Our spousal support attorneys help clients in Denton, Collin, and Tarrant County find the support they need after divorce. Call today for a consultation! DETERMINE WHICH FORMULA APPLIES BY CHECKING THE BOXES BELOW: QUESTION A: Will child support be paid for childrenof the marriage?