This calculator determines the value of child support to be paid based on income, days the children spend in your custody, and other child-related expenses. Use this worksheet when (a) Parents share custody of all the children for whom support is being determined, or (b) when one parent has primary physical custody.Use this worksheet when one parent (or a third party) has primary physical custody of all of the children for whom support is being determined. Parents can be obligated to pay child support even if they have joint custody of their children. Sodoma Law helps both prospective alimony payors and recipients in Charlotte, Mecklenburg County, and throughout western North Carolina. This child support calculator is based on statutory guidelines. The court has the final authority to determine the amount of child support awarded. See how parenting time affects the total. The child custody arrangement between the parties involved in a child support case is one of the primary components in calculating child support. WorksheetsWorksheets to calculate guideline amounts of maintenance and child support.