Interest rates for overpayments and underpayments will remain the same for the calendar quarter beginning Oct. 1, 2025, the IRS said in an announcement on Aug. 25.
The IRS issues refunds without interest for overpayments until 45 days pass, after which interest is paid to the taxpayer. For individuals, the rate for overpayments and underpayments will be 7 percent per year, compounded daily.
