A special needs trust—also known as a supplemental needs trust—is an irrevocable trust designed to provide supplemental income for a designated beneficiary who is physically disabled, mentally disabled, has chronic illness, or has other special needs and is receiving or may be eligible to receive government benefits—such as Social Security, Supplemental Security Income (SSI), Medicare, or Medicaid.

A special needs trust is often created by parents of a disabled child, with the trust prohibiting distributions from being used for the child’s food, clothing, or shelter to ensure the child (or adult) remains eligible for related government benefits. A special needs trust must be created before the beneficiary reaches the age of 65.

In Massachusetts, a Special Needs Trust (SNT), also known as a Supplemental Needs Trust, is a legal arrangement that allows a person with a disability to benefit from assets held in the trust without jeopardizing their eligibility for government assistance programs such as SSI and Medicaid. These trusts are designed to provide for the extra and supplemental needs of the beneficiary, beyond what government benefits cover, without disqualifying them from receiving such benefits. The trust assets can be used for a variety of life-enhancing expenditures without compromising the beneficiary's eligibility. Massachusetts law requires that a Special Needs Trust be irrevocable and that it be established before the beneficiary turns 65 years old. The trust must be properly structured and administered to ensure compliance with both state and federal regulations. It is advisable to work with an attorney who specializes in special needs planning to ensure that the trust is set up correctly and operates within the legal guidelines.