Around 32,100 Ohioans have until April 15 to claim an estimated $24.5 million in income tax refunds left over from 2010.
The Internal Revenue Service estimates that half of the refunds in Ohio are for more than $560. If the refunds aren't claimed, the federal government gets to pocket them.
The money comes from employers who withheld money for income taxes for employees who didn't file for a refund.
IRS spokeswoman Jennifer Jenkins tells the Dayton Daily News that most of the people who have money coming likely are among the working poor and didn't file because they didn't realize money was owed to them.
The Internal Revenue Service holds on to unclaimed money for three years before it becomes property of the U.S. Treasury.