Research the laws of your state to determine the required procedures for changing an existing court order. Some states refer to this process as a modification. Alternatively, research the relevant state laws regarding enforcement of an alimony order if your state handles wage garnishment as an enforcement matter rather than as a modification.
If your state's alimony laws require a judgment confirming unpaid, court-ordered alimony before you can request enforcement measures, obtain and prepare the required forms and deliver them to your state court . The titles of the required forms vary according to the terminology used by your state. In some states, for example, you must file an "Order to Show Cause" form.
Ask the court to require wage garnishment for the payment of alimony after you have obtained a judgment showing your ex-spouse owes arrears, i.e. past due payments, to you. Fill out the court form to request wage garnishment if your state requires one.
Alternatively, obtain the court forms to request a modification of your existing order for alimony if your state does not first require a judgment of arrears. Ask the court to change your court order to require wage garnishment from the paying party's paychecks. Explain the arrears and other circumstances that have caused you to request the wage garnishment.