The IRS says millions of dollars remain unclaimed in potential refunds for Hoosier taxpayers for the 2010 filing year. According to the agency, Indiana has approximately $15.4 million in potential refunds for an estimated 19,600 individuals. The deadline to claim money from 2010 is April 15. The IRS says taxpayers who were students or worked part-time should check their tax records. It’s likely most of the outstanding refunds are from individuals who made too little money that required a tax filing, but still had money withheld from a paycheck.