When Special Care Is Needed: The Special Needs Trust Test Your Investment Knowledge! How much do you know about investing? Take our quiz and find out instantly. First Name Last Name Email Address Thank you! Oops! A special needs trust helps care for a special needs child when you’re gone. Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Contents When Do You Need a Will? When do you need a will? The answer is easy: Right Now. Put It in a Letter A letter of instruction provides additional and more personal information regarding your estate. Principles of Preserving Wealth How federal estate taxes work, plus estate management documents and tactics.