The IRS will keep interest rates for tax underpayments and overpayments the same for the first calendar quarter of 2026.
For individuals, the rate for overpayments and underpayments will be 7% per year, compounded daily.
The IRS last November cut interest rates to their current levels for the first quarter of 2025, the first time since 2020 that interest rates for tax overpayments and underpayments were lower than the previous quarter. See the complete list of interest rates.