The short answer is: Yes, you can, but you shouldn’t ! The only advantage to a holographic will may be that you didn’t have to pay an attorney. It is true that in those states that allow them, you can write out your will in your own hand and sign it and it is almost always instantly valid without the need for any witnesses or any notarization. But not all states recognize a holographic will. Equally important, the complexities of probate are such that even the best holographic will usually fails to convey assets as its maker intended, and in the long run may cost your heirs far more than you saved by writing it. Consider a holographic will to be almost as much a last resort as an oral will. You are strongly urged to do yourself and your heirs a favor - have your will drawn by an attorney. As legal matters go, the fees charged for wills and estate planning are usually relatively small.