By Jane Holman (Admin) on Thursday, January 19, 2012 - 07:34 pm: Edit PostIndiana State Income Tax Refund for Certain 65 Years or Older Residents Older Indiana Hoosiers who have only small incomes or no income other than Social Security benefits are eligible to apply for the ???Indiana Unified Tax Credit for the Elderly??? using Form SC-40 for tax year 2011.