Changed circumstances regarding financial matters are grounds for modification of spousal support.You will need to file an Order to Show Cause to request a hearing on your modification of spousal support.  Call the court clerk to schedule a hearing.  Include the hearing date/time/ department on your Order to Show Cause.  With the Order to Show Cause, file a declaration signed under penalty of perjury stating the facts in support of your request for modification, and any additional supporting evidence.  In addition, file a proof of service (court form).  After filing these documents with the court, mail a copy of your documents to your ex with the proof of service which verifies the date of mailing.  Serving your ex by mail provides her with notice of the hearing.Prior to filing your documents with the court, ask the court clerk if there are any other required documents you need to file for a modification of spousal support because the required documents may vary from state to state.