I doubt if you will have to do anything about the trust to have trust payments handled after you die. But I can't be sure without knowing what the trust itself says. It is the trust document that defines how trust money is to be distributed. I gather that the trust provided that you and your brother received trust money after your mother died. Presumably, the trust has some provision that defines what happens to the trust money after you (and after your brother) die. But to make sure, you'll need to read the trust document.