Establishing_Calculating_FAQ.3. How does CSSD calculate child support?
Child Support is calculated according to Court Civil Rule 90.3. You may access Civil Rule 90.3 by clicking on the left side of CSSD's homepage. When someone has primary physical custody, the payments are based on what the noncustodial parent earns. Primary physical custody refers to the parent with whom the child resides at least 70% of the time. That court rule says that the noncustodial parent of one child should pay 20% of his or her adjusted income to support one child. Adjusted income means earning after deductions for taxes, union dues, retirement deductions and other mandatory deductions.
For example, if the noncustodial parent’s adjusted income is $1000 per month and that parent has one child, her monthly support obligation would be $200.