Attention Over 22-Thousand Tennesseans. Almost 20-Million Dollars In Unclaimed Tax Refunds Is Waiting For You To Claim From Uncle Sam. According To Internal Revenue Service Spokesman Dan Boone, The Money Can Be Claimed By People Who Did Not File A Federal Income Tax Return For 2006. To Collect The Money, A Return For 2006 Must Be Filed With The Irs No Later Than Thursday, April 15th.