The maximum amount taken out must comply with Section 303(b) of Title 3 of the Consumer Credit Protection Act (15 USC 1673(b)).
Although deductions for garnishments are limited to 25% of a person's disposable income, amounts withheld for child support can exceed 50% of the employee's disposable income for a work week in certain cases (such as when there are no other support obligations or there is arrearage in excess of 12 weeks). If withholding of more than 50% of the employee's income is required by the income withholding order, you should contact the Friend of the Court for information, or consult with an attorney.