When Special Care Is Needed: The Special Needs Trust A special needs trust helps care for a special needs child when you’re gone. Share | Related Content When Do You Need a Will? When do you need a will? The answer is easy: Right Now. When Heirs are Imperfect The money problems or bad lifestyle habits of adult children could lead to the squandering of any inheritance they receive. What Is My Current Net Worth? Use this calculator to estimate your net worth by adding up your assets and subtracting your liabilities.