Irs Interest Rates 2024 On Payment Plans. With irs payment plan interest rates at 8% and the lower penalty rate of 0.25% per month, it's possible that you'll have lower ongoing. 2024 irs interest rates overview (effective april 1, 2024) individuals:

What are the irs interest rates for late tax payments or refunds? In november 2023, the irs announced 2024 interest rates for both underpayments and overpayments.