You can put a fixed amount of money into a 529 plan for your grandson. If you guess as to the right amount to put away, then this might work for you. A better, more sophisticated way may be to create a revocable inter vivos trust (living trust) and upon your and your wife's death, the living trust would provide that a sub-trust be created that would benefit your son and grandson. With an independent trustee, then your grandson's education, and support during school if you desire that, would be paid by the trustee. During your grandson's schooling, if you son needed money, the trustee could distribute funds to your son. When your grandson finishes school, then distribution(s) would be made to your son. In this way, you would insure that your grandson's education is truly provided for without future complications.
Answered on Oct 25th, 2013 at 8:48 AM