The Internal Revenue Service is looking for Mississippi and Louisiana taxpayers who are due to receive a combined $2.39 million in refunds.

The reason is 2,445 refund checks were returned to the IRS by the U.S. Postal Service due to mailing address errors.

IRS spokeswoman Dee Harris in New Orleans says all a taxpayer must do to receive a the refund is update his or her address.

In Mississippi, 951 individuals did not receive their refund checks totaling over $781,000. The average undelivered refund for Mississippi is $822.

Harris says almost 1,500 Louisiana residents did not receive their refund checks totaling over $1.6 million. The average undelivered refund for Louisiana is $1,080.