court-ordered funds to be paid by one parent to the custodial parent of a minor child after divorce (dissolution) or separation. Usually the dollar amounts are based on the income of both parents, the number of children, the expenses of the custodial parent, and any special needs of the child. In many states or locales the amount is determined by a chart which factors in all these figures. It may also include health plan coverage, school tuition or other expenses, and may be reduced during periods of extended visitation such as summer vacations. Child support generally continues until the child reaches 18 years, graduates from high school, is emancipated (no longer lives with either parent), or, in some cases, for an extended period such as college attendance. The amount and continuation of support may be changed by the court upon application of either party depending on a proved change of circumstance of the parents or child. Child support should not be confused with alimony (spousal support) which is for the ex-spouse's support. Child support is not deductible from gross income for tax purposes (but may allow a dependent exemption) nor is it taxed as income, unlike alimony, which is deductible by the payer and taxed as the adult recipient's income.
Link to definition source