The unrelated business income tax is imposed on the following: Organizations exempt from tax under section 501(a) of the Internal Revenue Code Employees' trusts forming part of pension, profit-sharing, and stock bonus plans described in section 401(a) Individual retirement arrangements State and municipal colleges and universities Qualified state tuition programs Medical savings accounts Coverdell savings accounts Return to Life Cycle of a Public Charity Return to Life Cycle of a Private Foundation Return to Life Cycle of a Social Welfare Organization Return to Life Cycle of a Labor Organization Return to Life Cycle of an Agricultural or Horticultural Organization