This Child Support Standards Chart can be used to determine an approximate annual child support obligation. In Texas, child support is based on the obligor's income.It does not look at both parents' income. The Law Department assists local and out-of-state custodial parents in establishing an order of support from non-custodial parents. NOTE: Neither New York child support law nor federal tax law considers child support payments to be "income" or "taxable income" to the recipient. If you work or reside in a state where a state income tax is assessed against your income, enter the monthly amount. If the Defendant seeks maintenance or child support, the Defendant must fill out the applicable forms. (v) no less than thirty-five percent of the combined parental income for five or more children. To determine your share, you multiply your percentage share and the total child support obligation. It takes into account the amount of money each parent earns, and how many children the parents have together.