An Illinois Wage Deduction Order (WHO) is a court-issued document that authorizes an employer to withhold a certain portion of an employee's wages to pay for a debt or court-ordered judgment. The order can be issued by a judge in a civil case or by a collection agency in a consumer debt case. WHO orders are typically used when an employee fails to pay a debt, such as a loan or credit card balance, or a court-ordered judgment, such as child support or alimony. There are two types of Illinois Wage Deduction Orders: garnishment and attachment. A wage garnishment is a court order that allows an employer to withhold a certain amount of an employee’s wages to pay for a debt or court-ordered judgment. An attachment is a court order that requires an employer to withhold a certain amount of an employee’s wages to secure a debt or court-ordered judgment.