Indiana Code Title 30. Trusts and Fiduciaries § 30-2-6-1

(1) a trust created by an employer as part of a stock bonus, pension, disability, death benefit, or profit-sharing plan for the benefit of some or all of his employees, to which contributions are made by the employer or employees, or both, for the purpose of distributing to the employees the earnings or principal, or both earnings and principal, of the fund held in trust;  or

(2) a retirement fund or trust which at any time is tax exempt under the provisions of the Internal Revenue Code and to which contributions are made by self-employed persons or qualified individuals for the purpose of providing pension or other benefits for themselves or their beneficiaries;