The Internal Revenue Service says it has about $18.5 million in refunds for about 20,000 Missouri taxpayers, with half of those refunds for $600 or more.

The money is for people who did not file tax returns for 2007.

An IRS spokesman says the money is for people who did not earn enough in 2007 to justify filing a return. It’s money withheld from their paychecks anyway.