Yes, the IRS pays interest on refunds, but only if your refund is delayed beyond a certain point

The IRS pays interest on tax refunds that are not issued within 45 days of the later of two dates: the date you filed your return, or the date your return was due. The interest rate changes quarterly and is set by federal law. For the current quarter, you can find the rate on the IRS website under "Interest Rates".

The 45-day clock starts from whichever date comes later. If you file on March 15 and your return was due April 15, the clock starts April 15. If you file on May 1 and your return was due April 15, the clock starts May 1. The IRS counts all 45 days, including weekends and holidays.

Interest accrues daily from the first day after the 45-day period ends until the IRS issues your refund. You do not have to request it or do anything to receive it — the IRS calculates and includes it automatically.

Key Takeaways

  • The IRS owes interest only if your refund arrives more than 45 days after you filed or after your return was due, whichever is later.
  • The interest rate is set by federal law and changes every three months; check the IRS website for the current rate.
  • Interest is calculated daily from day 46 onward and is added to your refund check or direct deposit automatically.
  • Most refunds issued within 21 days do not earn interest because they arrive well before the 45-day threshold.

How the IRS calculates the interest amount

The IRS uses a daily compounding method. The interest rate is divided by 365 to get a daily rate, then applied to your refund amount each day from day 46 until the refund is issued. The longer the delay, the more interest accumulates.

The actual dollar amount is usually small. A $3,000 refund delayed 60 days at a 7% annual rate would earn roughly $35 in interest. The IRS rounds the final amount to the nearest dollar. You will see the interest amount listed separately on your refund check or in your bank account deposit memo if you receive the refund by direct deposit.

Why refunds are delayed past 45 days

Most refunds are issued within 21 days if you file electronically and request direct deposit. Delays past 45 days usually happen because of errors on the return, missing information, identity verification issues, or fraud screening flags.

If the IRS needs more information from you, they will mail a notice to the address on your return. You must respond within the timeframe stated in the notice. The 45-day clock does not stop while you are gathering documents — interest still accrues if the total time exceeds 45 days.

Some refunds are delayed because they are being offset to pay other federal debts, such as unpaid student loans or back child support. The IRS will notify you if this happens. Interest still accrues during the offset process.

The current interest rate and how it changes

The IRS interest rate is tied to the federal short-term rate plus 3 percentage points. It is set quarterly on January 1, April 1, July 1, and October 1. The rate for each quarter is published on the IRS website and in the Federal Register.

Interest rates have ranged from less than 4% to over 8% in recent years, depending on federal rates. The rate that applies to your refund is the one in effect when your 45-day period ends, not the rate when you filed.

What happens if you file an amended return

If you file an amended return (Form 1040-X) after receiving your original refund, a new 45-day period begins. If the amended return results in an additional refund and that refund is delayed more than 45 days from when you filed the amended return, interest accrues on the additional amount only.

Interest does not accrue on the original refund you already received, even if the amended return changes the total amount owed. The IRS treats each refund as a separate transaction for interest purposes.

Interest on refunds offset for other debts

If your refund is offset to pay back taxes, unpaid student loans, or child support, interest still accrues if the offset process takes longer than 45 days from your filing or due date. The interest is calculated on the full refund amount, even though you do not receive it directly.

The offset agency (such as the Department of Education for student loans) does not pay you the interest — the IRS retains it. You cannot claim the interest as income on a future tax return.

Frequently Asked Questions

Can I get interest if my refund arrived in 30 days?

No. Interest only accrues after 45 days have passed. If your refund was issued on day 30, 35, or even day 44, you receive no interest because the IRS met the important date.

What if the IRS made an error and delayed my refund?

Interest still accrues. The IRS pays interest on all refunds delayed past 45 days, regardless of the reason. You do not have to prove the delay was the IRS's fault.

Do I report the interest as income on my next tax return?

No. Interest paid by the IRS on a refund is not taxable income. You do not report it on your next return or receive a Form 1099 for it.

Where do I find the interest rate for my specific refund?

Visit the IRS website and search for "Interest Rates". The page shows the current quarterly rate and historical rates. Match the quarter in which your 45-day period ended to find your rate.

What if I never received my refund check?

Interest still accrues until the IRS issues the refund, even if you do not receive it. If your check was lost in the mail, contact the IRS to request a replacement. Interest continues to accrue during the replacement process.