Now that my son is grown can he waive child support on his behalf?

First, it depends where the order awarding child support was entered.  In Florida,  child support typically terminates when a child reaches 18 or graduates from high school, provided there is a reasonalbe expectation that he graduate before his 19th birthday. However, there are always exceptions, and the terms of the order/agreement would govern.  In certain states child support extends beyond age 18, so to answer this fully would require a review of the order. Now, with that said, although the support should terminate automatically it rarely does.  If you are the person obligated to pay, you would have to take action by getting a court order to stop the support.  Your son, or the parent who was receiving the support on behalf of your son, can agree to the order and then usually this can be submitted  to the court  by agreement and it goes a little smoother. Good luck! Regards, Cindy S. Vova Law Offices of Cindy S. Vova, P.A. Broward: 954-316-3496 Boca Raton: 561-962-2785 info@vovalaw.com ,