Income withholding is a method of child support collection. A notice of income withholding legally requires an employer to withhold a certain amount of income made by a parent paying child support from their paycheck. The income that is withheld should equal the amount of current child support owed, and sometimes plus the amount of past-due child support.
The notice for income withholding will typically be sent to both the parent paying child support as well as their employer.
Income withholding can also be the result of a child support enforcement penalty, in which income is withheld for the purposes of paying off past-due child support.