If your refund amount is different than stated on the filed tax return, part or all of your refund may have been used to pay off (offset) past-due federal tax, student loans, state income tax or other past-due debts.

You’ll receive a notice from the IRS if such an offset occurs that will show the original tax refund amount, the offset amount, as well as the name, address and telephone number of the agency receiving the payment.

If you haven’t received your refund yet, you may be able to check the status using the IRS’ “Where’s my Refund?” tool: https://www.irs.gov/refunds.