As the April 15 filing deadline looms, the Internal Revenue Service reminds taxpayers that after three years, any unclaimed 2021 tax year refunds go to the U.S. Treasury.

The IRS estimates that more than 1.1 million taxpayers might have qualified for a refund in 2021 but did not file a federal income tax return to claim it.

Over 1.1 million people have unclaimed federal income tax refunds from 2021, which are in jeopardy of becoming government property if not claimed soon, with a median return of $781 and potential refunds worth up to $6,