(Undated) — The IRS is looking to pay out unclaimed refunds to taxpayers who didn’t file a federal return for 2012. There are nearly a billion dollars worth of unclaimed funds nationwide and in Minnesota “more than 15,000 taxpayers left about $12.9 million on the table, with a median return of about $657” says the IRS’ Karen Connelly. The deadline to file a 2012 federal tax return is April 18th.