Irs Loan Interest Rates 2024. 8% for overpayments (7% for corporations) 8% for the underpayment of taxes. Irs updates applicable federal rates (afr):

8% for overpayments (7% for corporations) 8% for the underpayment of taxes. The rates for interest determined under section 6621 of the code for the calendar quarter beginning april 1, 2024, will be 8 percent for overpayments (7 percent in the case of a corporation), 8 percent for underpayments, and 10 percent for large corporate underpayments.