Rev. Rul. 2025-22: Interest rates, tax underpayments and overpayments remain same for first quarter 2026
Interest rates for the calendar quarter beginning January 1, 2026
The IRS today released Rev. Rul. 2025-22 that provides the rates of interest with regard to tax underpayments and tax overpayments for the calendar quarter beginning January 1, 2026. The rates of interest will remain the same as those for the fourth calendar quarter of 2025.
Rev. Rul. 2025-22 lists the interest rates for the calendar quarter beginning January 1, 2026, as follows:
- 7% for overpayments (6% for corporations)
- 4.5% for the portion of a corporate overpayment exceeding $10,000
- 7% for underpayments
- 9% for large corporate underpayments
Read a related IRS release—IR-2025-112