Legal Question in Family Law in California

Technically you don't need a further order, but your employer may need it. On the California Judicial Counsel's website there are all the forms you need. If your ex will stipulate, there is a stipulation form and order to modify support. If not, there is a simplified motion to modify support. Bear in mind, though, the support obligation does not end until she is 18 AND graduates from high school or is no longer a full time student, OR when she turns 19 regardless of whether she has graduated.