A special needs trust is a trust designed for beneficiaries who are disabled, either physically or mentally. It is written so the beneficiary can enjoy the use of property that is held in the trust for his or her benefit, while at the same time allowing the beneficiary to receive essential needs-based government benefits. In addition to the public benefits preservation reasons for such a trust  there will be administrative advantages of using a trust to hold and manage property intended for the benefit of the beneficiary if the beneficiary lacks the legal capacity to handle his or her own financial affairs. Special needs trusts are sometimes known as supplemental needs trusts in the United States. - source Wikipedia

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