Changed circumstances such as reduced income would be a ground for requesting a modification of child support and a modification of alimony. You should file an Order to Show Cause (court form) requesting a modification of child support and a modification of spousal support.  With your Order to Show Cause, attach your supporting declaration signed under penalty of perjury, stating the facts (reduced income) for a modification of child support and spousal support.  It would also be advisable to attach current pay stubs and a current income and expense declaration.  You will also need to attach a proof of service.  The proof of service verifies the date of mailing your documents to your ex.  You can either use a court form proof of service or you can write your own.  If you write your own proof of service, it just says that you are over 18 and the attached documents were sent via first class mail unless specified otherwise to ______________ (name and address of ex) on ______________ (date).  You sign and date the proof of service at the bottom.  The date you sign should be the same as the date of mailing and the same date you file your documents with the court. When you file your Order to Show Cause with the court, the court will set a date for a hearing on your requests for modifications of child support and spousal support.