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.

The IRS has issued more than 29.6 million individual income tax refunds through Feb. 21, up 2.3% from a year ago.

The median potential refund nationwide is $781 for 2021. Florida, with 69,800 individuals who did not file, is just below the median potential refund at $721. New Yorkers — 73,000 of them — left the most money in the IRS till: $995.

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.

If you've already filed your tax return, it's natural to wonder when you'll receive your refund. One of the most common questions is the exact time the IRS makes deposits.